Effect of end plates on lateral torsional buckling loads of steel beams ...
Introduction into Cosserat-type theories of beams, plates ...
Transcript of Introduction into Cosserat-type theories of beams, plates ...
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Introduction into Cosserat-type theories ofbeams, plates and shells with applications.
Classic theories.
Victor A. Eremeyev
Rzeszow University of Technology, Rzeszów, Poland
Università degli Studi di Cagliari, Cagliari, June, 2017
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Contents
1 Materials & Structures under ConsiderationClassificationApplicationsHierarchical Modeling
2 Fundamentals of the Plate TheoryClassical Plate TheoriesNon-classical Approaches
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Contents
1 Materials & Structures under ConsiderationClassificationApplicationsHierarchical Modeling
2 Fundamentals of the Plate TheoryClassical Plate TheoriesNon-classical Approaches
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Contents
1 Materials & Structures under ConsiderationClassificationApplicationsHierarchical Modeling
2 Fundamentals of the Plate TheoryClassical Plate TheoriesNon-classical Approaches
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Contents
1 Materials & Structures under ConsiderationClassificationApplicationsHierarchical Modeling
2 Fundamentals of the Plate TheoryClassical Plate TheoriesNon-classical Approaches
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Contents
1 Materials & Structures under ConsiderationClassificationApplicationsHierarchical Modeling
2 Fundamentals of the Plate TheoryClassical Plate TheoriesNon-classical Approaches
Eremeyev (PRz) Classic theories Cagliari, 2017 1 / 71
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Contents
1 Materials & Structures under ConsiderationClassificationApplicationsHierarchical Modeling
2 Fundamentals of the Plate TheoryClassical Plate TheoriesNon-classical Approaches
Eremeyev (PRz) Classic theories Cagliari, 2017 1 / 71
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Contents
1 Materials & Structures under ConsiderationClassificationApplicationsHierarchical Modeling
2 Fundamentals of the Plate TheoryClassical Plate TheoriesNon-classical Approaches
Eremeyev (PRz) Classic theories Cagliari, 2017 1 / 71
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Contents
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Contents
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Materials & Structures under Consideration
Materials & Structures under Consideration
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Materials & Structures under Consideration Classification
Classification
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Materials & Structures under Consideration Classification
Starting Point
Material science classifies structural materials into three categories
metals,
ceramics, and
polymers
It is difficult to give an exact assessment of the advantages anddisadvantages of these three basic material classes, because eachcategory covers whole groups of materials within which the range ofproperties is often as broad as the differences between the threematerial classes.
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Materials & Structures under Consideration Classification
Characteristic Properties
Mostly metallic materials are of medium to high density. Theyhave good thermal stability and can be made corrosion-resistantby alloying. Metals have useful mechanical characteristics and it ismoderately easy to shape and join. For this reason metalsbecame the preferred structural engineering material, they posedless problems to the designer than either ceramic or polymermaterials.Ceramic materials have great thermal stability and are resistant tocorrosion, abrasion and other forms of attack. They are very rigidbut mostly brittle and can only be shaped with difficulty.Polymer materials (plastics) are of low density, have goodchemical resistance but lack thermal stability. They have poormechanical properties, but are easily fabricated and joined. Theirresistance to environmental degradation, e.g. thephotomechanical effects of sunlight, is moderate.
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Materials & Structures under Consideration Classification
Classification of Composites 1
a b c d
e f g h
a Laminate, b irregular reinforcement, c reinforcement with particles,d reinforcement with plate strapped particles, e random arrangementof continuous fibres, f irregular reinforcement with short fibres,g spatial reinforcement, h reinforcement with surface tissues
1Altenbach et al. Mechanics of Composite Structural Elements, Springer 2004Eremeyev (PRz) Classic theories Cagliari, 2017 8 / 71
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Materials & Structures under Consideration Classification
Sandwich Materials with Solid and Hollow Cores 2
foam core balsa wood core
foam core with fillers balsa wood core with holes
folded plates core honeycomb core2Altenbach et al. Mechanics of Composite Structural Elements, Springer 2004
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Materials & Structures under Consideration Classification
Short Fibre Reinforced Composite 3
Flow direction
3Saito et al. Material Science and Engineering, A285:280-287, 2000Eremeyev (PRz) Classic theories Cagliari, 2017 10 / 71
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Materials & Structures under Consideration Classification
Injection Molding
inlet
Cross section of a shotspecimen, fabricated byinjection molding,Semba and Hamada, 1999
fiber directions
flow front
frozen layer
lubrication regiongate flow region
Sketch of a radial flow between parallel plates
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Materials & Structures under Consideration Classification
Copper Foams
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Materials & Structures under Consideration Classification
Closed-cell Foams 4
Closed-cell polymeric foams with various densities
4Kraatz (2007), DKI, Darmstadt, GermanyEremeyev (PRz) Classic theories Cagliari, 2017 13 / 71
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Materials & Structures under Consideration Classification
Open-cell Foams
Open-cell foams with various densities
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Materials & Structures under Consideration Classification
Functionally Graded Material (FGM)
Inhomogeneous Microstructure of a FGMEremeyev (PRz) Classic theories Cagliari, 2017 15 / 71
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Materials & Structures under Consideration Classification
Examples of FGMs
Inhomogeneous microstructure:Foam (left), Thermal coating (right)
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Materials & Structures under Consideration Classification
Nanostructures
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Materials & Structures under Consideration Classification
Nanostructures
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Materials & Structures under Consideration Applications
Applications
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Materials & Structures under Consideration Applications
Sandwich Application in Automotive Industries
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Materials & Structures under Consideration Applications
Sandwich Application in Chemical Industries 5
Sandwich-Membrane (PTFE)
5http://www.elringklinger-kunststoff.de/pages/article/article0601chem.htmlEremeyev (PRz) Classic theories Cagliari, 2017 21 / 71
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Materials & Structures under Consideration Applications
Structural Honeycomb - Foam Filled 6
6http://www.nida-core.com/english/nidaprod_honey_foam.htmEremeyev (PRz) Classic theories Cagliari, 2017 22 / 71
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Materials & Structures under Consideration Applications
Door made of Steel-Honeycomb 7
Honeycomb has the highest strength to weight ratio (in a sandwichform), of any known material
7http://www.designandsupply.co.uk/steeldoors_types_cores.htmlEremeyev (PRz) Classic theories Cagliari, 2017 23 / 71
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Materials & Structures under Consideration Applications
Short Fibre Composites Applications
Sort fibrereinforced
composites
Automotive
Sports
Civil engineering
Sanitary applications
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Materials & Structures under Consideration Applications
Short Fibre Composites Applications 8
a
b
c
de
f
a sport car seat backPA66, 50% long glass fibresb housing car radio antennaPA66, 25% glass fibresc In-line roller skate framePA66, 40% long glass fibresd gear pump impellerepoxy 40% glass fibrese dental equipment bevel gearsPTFE-PA66 30% glass faibresf Cooling fan huband bladePA66, 50% long glass fibres
8Jones, R.M. Guide to Short Fiber Reinforced Plastics. München: Hanser, 1998Eremeyev (PRz) Classic theories Cagliari, 2017 25 / 71
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Materials & Structures under Consideration Applications
Composite Applications - Telecabine 9
9http://www.poma.net/deutsch/produits/sporthiver/telecabine/4places/main.htmEremeyev (PRz) Classic theories Cagliari, 2017 26 / 71
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Materials & Structures under Consideration Applications
Nanostructure Applications
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Materials & Structures under Consideration Applications
Femur 10
10http://www.seilnacht.tuttlingen.com/Minerale/Seeigel.htmEremeyev (PRz) Classic theories Cagliari, 2017 28 / 71
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Materials & Structures under Consideration Applications
Lattice Structure
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Materials & Structures under Consideration Applications
FGM Application 11
FGM European Virtual Institute on Knowledge-based MultifunctionalMaterials AISBL
11http://www.kmm-vin.eu/Research/FunctionallyGradedMaterials/tabid/68/Default.aspx
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Materials & Structures under Consideration Applications
Composite 12
Fibre-reinforced Composite12http://www.uni-magdeburg.de/iwf/labore/wt/13/imgal.html
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Materials & Structures under Consideration Applications
Composite 13
US Air Force F-117 Nighthawk13http://de.wikipedia.org/wiki/Flugzeug
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Materials & Structures under Consideration Applications
Computerchip 14
14http://pressetext.de/news/061023004/computerchip-entwickler-kaempfen-mit-kuehlungsproblemen/
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Materials & Structures under Consideration Hierarchical Modeling
Hierarchical Modeling
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Materials & Structures under Consideration Hierarchical Modeling
Laminated Plates
Layers
Interface between layers
Fibre
Fibre-matrix interface
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Materials & Structures under Consideration Hierarchical Modeling
Open- and closed-cell Foams
Rohacell 51WF; IWMH open cell PU-foam; Mills2000
cell wall
strut
vertex
open cell foamclosed cell foam
microscopic investigations,Röntgen-Tomography,Geometrical properties as statistic distributions
Three Scales
Macroscale Mesoscale MicroscaleEremeyev (PRz) Classic theories Cagliari, 2017 36 / 71
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Fundamentals of the Plate Theory
Fundamentals of the Plate Theory
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Fundamentals of the Plate Theory Classical Plate Theories
Classical Plate Theories
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Fundamentals of the Plate Theory Classical Plate Theories
Basic Problem in Civil & Mechanical Engineering
Analysis of the strength, the vibration behavior and the sta bilityof structures with the help of structural models.
The structural models can be classified by their
spatial dimensions
loadings
kinematical and/or statical hypotheses
The structural model of a whole structure includes the inter actionof all parts.
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Fundamentals of the Plate Theory Classical Plate Theories
Three-dimensional Structural Elements
The three spatial dimensions have the same order, nopredominant direction for the dimensions exists.
Typical examples of geometrical simple, compact structural elementsin theory of elasticity are:
• Cube • Prisma • Cylinder • Sphere
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Fundamentals of the Plate Theory Classical Plate Theories
Two-dimensional Structural Elements
Two spatial dimensions have the same order, the third, whichis related to the thickness is much smaller.
Typical examples of surface structural elements instructural mechanics are:
• Discs • Plates • Shells •FoldedStructures
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Fundamentals of the Plate Theory Classical Plate Theories
One-dimensional Structural Elements
Two spatial dimensions, which can be related to thecross-section, have the same order. The third dimension,which is related to the length of the structural element, has amuch larger order in comparison with the cross-sectiondimensions.
Typical examples in engineering mechanics are:
• Rods • Beams • Torsion beam
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Fundamentals of the Plate Theory Classical Plate Theories
Thin-walled Structural Elements
Thin-walled light-weight profile structures require an extension of theclassical structural models:
If the spatial dimensions are of significantly different ord erand the thickness of the profile is small in comparison to theother cross-section dimensions, and the cross-sectiondimensions are much smaller in comparison to the length ofthe structure one can introduce quasi-one-dimensionalstructural elements. The suitable theories are
the thin-walled beam approach (Vlasov-Theory) andthe semi-membrane theory or generalized beam theory
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Fundamentals of the Plate Theory Classical Plate Theories
2D Structures - Definition
Definition:A two-dimensional load-barring structural element is a model for theanalysis in Engineering/Structural Mechanics with two geometricaldimensions, which are of the same order and which are significantlylarger as the third (thickness) direction.
Mathematical Consequence:
Instead of a three-dimensional problem, which is presented by asystem of partial differential equations, one can analyze atwo-dimensional problem. The transition from the three-dimensional tothe two-dimensional problem is not simple, but the solution effortdecreases significantly.
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Fundamentals of the Plate Theory Classical Plate Theories
2D Structures - Definition
Definition:A two-dimensional load-barring structural element is a model for theanalysis in Engineering/Structural Mechanics with two geometricaldimensions, which are of the same order and which are significantlylarger as the third (thickness) direction.
Mathematical Consequence:
Instead of a three-dimensional problem, which is presented by asystem of partial differential equations, one can analyze atwo-dimensional problem. The transition from the three-dimensional tothe two-dimensional problem is not simple, but the solution effortdecreases significantly.
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Fundamentals of the Plate Theory Classical Plate Theories
Applications
Examples of model classes:thin homogeneous platesthin inhomogeneous plates (laminates, sandwiches)plates with structural anisotropymoderately thick homogeneous platesfolded platesmembranesbiological membranesnanotubes
Applications:space and aircraft industriesautomotive industriesshipbuilding industriesvehicle systemscivil engineeringmedicine
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Fundamentals of the Plate Theory Classical Plate Theories
Applications
Examples of model classes:thin homogeneous platesthin inhomogeneous plates (laminates, sandwiches)plates with structural anisotropymoderately thick homogeneous platesfolded platesmembranesbiological membranesnanotubes
Applications:space and aircraft industriesautomotive industriesshipbuilding industriesvehicle systemscivil engineeringmedicine
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Fundamentals of the Plate Theory Classical Plate Theories
Literature
Some review articles and monographs:P.M. Naghdi, 1972E.I. Grigolyuk, 1972, 1988I.F. Obrazcov, 1983E. Reissner, 1985G. Wempner, 1989A.K. Noor, 1989, 1990J.N. Reddy, 1990H. Irschik, 1992
Actual Conferences:EUROMECH Critical Review of the Theories of Plates and Shells,New Applications, Bremen 2002Shell Structures Theory & Applications, Jurata 2009IUTAM Relation of Shell, Plate, Beam and 3D Models, Tbilisi 2007
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Fundamentals of the Plate Theory Classical Plate Theories
Literature
Some review articles and monographs:P.M. Naghdi, 1972E.I. Grigolyuk, 1972, 1988I.F. Obrazcov, 1983E. Reissner, 1985G. Wempner, 1989A.K. Noor, 1989, 1990J.N. Reddy, 1990H. Irschik, 1992
Actual Conferences:EUROMECH Critical Review of the Theories of Plates and Shells,New Applications, Bremen 2002Shell Structures Theory & Applications, Jurata 2009IUTAM Relation of Shell, Plate, Beam and 3D Models, Tbilisi 2007
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Fundamentals of the Plate Theory Classical Plate Theories
Formulation Principles
Plate equations can be deduced:
Starting from 3D continuum
Starting from 2D continuum
If one starts from the 3D continuum - two possibilities:
the use of hypotheses
the use of mathematical approaches
All methods have advantages and disadvantages!
Hypotheses based theories are preferred by the engineers!
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Fundamentals of the Plate Theory Classical Plate Theories
Formulation Principles
Plate equations can be deduced:
Starting from 3D continuum
Starting from 2D continuum
If one starts from the 3D continuum - two possibilities:
the use of hypotheses
the use of mathematical approaches
All methods have advantages and disadvantages!
Hypotheses based theories are preferred by the engineers!
Eremeyev (PRz) Classic theories Cagliari, 2017 47 / 71
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Fundamentals of the Plate Theory Classical Plate Theories
Formulation Principles
Plate equations can be deduced:
Starting from 3D continuum
Starting from 2D continuum
If one starts from the 3D continuum - two possibilities:
the use of hypotheses
the use of mathematical approaches
All methods have advantages and disadvantages!
Hypotheses based theories are preferred by the engineers!
Eremeyev (PRz) Classic theories Cagliari, 2017 47 / 71
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Fundamentals of the Plate Theory Classical Plate Theories
Formulation Principles
Plate equations can be deduced:
Starting from 3D continuum
Starting from 2D continuum
If one starts from the 3D continuum - two possibilities:
the use of hypotheses
the use of mathematical approaches
All methods have advantages and disadvantages!
Hypotheses based theories are preferred by the engineers!
Eremeyev (PRz) Classic theories Cagliari, 2017 47 / 71
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Fundamentals of the Plate Theory Classical Plate Theories
Displacement Approximations
x2, u2x1, u1
z, w
h
ui = (uα,w)
α, β = 1,2
Kirchhoff (1850)uα(xβ , z) = u0
α(xβ)− zw,α(xβ), w(xβ, z) = w(xβ)Hencky, Bollé (1947), Mindlin (1951)uα(xβ , z) = u0
α(xβ) + zϕα(xβ), w(xβ , z) = w(xβ)Levinson (1981), Reddy (1984)
uα(xβ , z) = u0α(xβ)− [w,α(xβ) + ϕα(xβ)]
4z3
3h2 , w(xβ, z) = w(xβ)
Altenbach, Meenen (1999)uα(xβ , z) = uq
α(xβ)φq(z)+wq
,α(xβ)ψq(z), w(xβ , z) = w(xβ)qχq(z)
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Fundamentals of the Plate Theory Classical Plate Theories
Displacement Approximations
x2, u2x1, u1
z, w
h
ui = (uα,w)
α, β = 1,2
Kirchhoff (1850)uα(xβ , z) = u0
α(xβ)− zw,α(xβ), w(xβ, z) = w(xβ)Hencky, Bollé (1947), Mindlin (1951)uα(xβ , z) = u0
α(xβ) + zϕα(xβ), w(xβ , z) = w(xβ)Levinson (1981), Reddy (1984)
uα(xβ , z) = u0α(xβ)− [w,α(xβ) + ϕα(xβ)]
4z3
3h2 , w(xβ, z) = w(xβ)
Altenbach, Meenen (1999)uα(xβ , z) = uq
α(xβ)φq(z)+wq
,α(xβ)ψq(z), w(xβ , z) = w(xβ)qχq(z)
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Fundamentals of the Plate Theory Classical Plate Theories
Displacement Approximations
x2, u2x1, u1
z, w
h
ui = (uα,w)
α, β = 1,2
Kirchhoff (1850)uα(xβ , z) = u0
α(xβ)− zw,α(xβ), w(xβ, z) = w(xβ)Hencky, Bollé (1947), Mindlin (1951)uα(xβ , z) = u0
α(xβ) + zϕα(xβ), w(xβ , z) = w(xβ)Levinson (1981), Reddy (1984)
uα(xβ , z) = u0α(xβ)− [w,α(xβ) + ϕα(xβ)]
4z3
3h2 , w(xβ, z) = w(xβ)
Altenbach, Meenen (1999)uα(xβ , z) = uq
α(xβ)φq(z)+wq
,α(xβ)ψq(z), w(xβ , z) = w(xβ)qχq(z)
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Fundamentals of the Plate Theory Classical Plate Theories
Displacement Approximations
x2, u2x1, u1
z, w
h
ui = (uα,w)
α, β = 1,2
Kirchhoff (1850)uα(xβ , z) = u0
α(xβ)− zw,α(xβ), w(xβ, z) = w(xβ)Hencky, Bollé (1947), Mindlin (1951)uα(xβ , z) = u0
α(xβ) + zϕα(xβ), w(xβ , z) = w(xβ)Levinson (1981), Reddy (1984)
uα(xβ , z) = u0α(xβ)− [w,α(xβ) + ϕα(xβ)]
4z3
3h2 , w(xβ, z) = w(xβ)
Altenbach, Meenen (1999)uα(xβ , z) = uq
α(xβ)φq(z)+wq
,α(xβ)ψq(z), w(xβ , z) = w(xβ)qχq(z)
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Fundamentals of the Plate Theory Classical Plate Theories
Displacement Approximations
x2, u2x1, u1
z, w
h
ui = (uα,w)
α, β = 1,2
Kirchhoff (1850)uα(xβ , z) = u0
α(xβ)− zw,α(xβ), w(xβ, z) = w(xβ)Hencky, Bollé (1947), Mindlin (1951)uα(xβ , z) = u0
α(xβ) + zϕα(xβ), w(xβ , z) = w(xβ)Levinson (1981), Reddy (1984)
uα(xβ , z) = u0α(xβ)− [w,α(xβ) + ϕα(xβ)]
4z3
3h2 , w(xβ, z) = w(xβ)
Altenbach, Meenen (1999)uα(xβ , z) = uq
α(xβ)φq(z)+wq
,α(xβ)ψq(z), w(xβ , z) = w(xβ)qχq(z)
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Fundamentals of the Plate Theory Classical Plate Theories
Method of Hypotheses - Main Theories
Introduction of hypotheses for the stress and/or strain(displacement) state
Kirchhoff (1850)E. Reissner (1944, 1945, 1947)Bollé (1947)Hencky (1947)Mindlin (1951)Kromm (1953)B. Vlasov (1957)Ambarcumyan (1958)Mushtari (1959)Panc (1964)Levinson (1980)Reddy (1984)
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Fundamentals of the Plate Theory Classical Plate Theories
Method of Hypotheses - Main Theories
Introduction of hypotheses for the stress and/or strain(displacement) state
Kirchhoff (1850)E. Reissner (1944, 1945, 1947)Bollé (1947)Hencky (1947)Mindlin (1951)Kromm (1953)B. Vlasov (1957)Ambarcumyan (1958)Mushtari (1959)Panc (1964)Levinson (1980)Reddy (1984)
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Fundamentals of the Plate Theory Classical Plate Theories
Method of Hypotheses - Main Theories
Introduction of hypotheses for the stress and/or strain(displacement) state
Kirchhoff (1850)E. Reissner (1944, 1945, 1947)Bollé (1947)Hencky (1947)Mindlin (1951)Kromm (1953)B. Vlasov (1957)Ambarcumyan (1958)Mushtari (1959)Panc (1964)Levinson (1980)Reddy (1984)
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Fundamentals of the Plate Theory Classical Plate Theories
Method of Hypotheses - Main Theories
Introduction of hypotheses for the stress and/or strain(displacement) state
Kirchhoff (1850)E. Reissner (1944, 1945, 1947)Bollé (1947)Hencky (1947)Mindlin (1951)Kromm (1953)B. Vlasov (1957)Ambarcumyan (1958)Mushtari (1959)Panc (1964)Levinson (1980)Reddy (1984)
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Fundamentals of the Plate Theory Classical Plate Theories
Method of Hypotheses - Main Theories
Introduction of hypotheses for the stress and/or strain(displacement) state
Kirchhoff (1850)E. Reissner (1944, 1945, 1947)Bollé (1947)Hencky (1947)Mindlin (1951)Kromm (1953)B. Vlasov (1957)Ambarcumyan (1958)Mushtari (1959)Panc (1964)Levinson (1980)Reddy (1984)
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Fundamentals of the Plate Theory Classical Plate Theories
Method of Hypotheses - Main Theories
Introduction of hypotheses for the stress and/or strain(displacement) state
Kirchhoff (1850)E. Reissner (1944, 1945, 1947)Bollé (1947)Hencky (1947)Mindlin (1951)Kromm (1953)B. Vlasov (1957)Ambarcumyan (1958)Mushtari (1959)Panc (1964)Levinson (1980)Reddy (1984)
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Fundamentals of the Plate Theory Classical Plate Theories
Method of Hypotheses - Main Theories
Introduction of hypotheses for the stress and/or strain(displacement) state
Kirchhoff (1850)E. Reissner (1944, 1945, 1947)Bollé (1947)Hencky (1947)Mindlin (1951)Kromm (1953)B. Vlasov (1957)Ambarcumyan (1958)Mushtari (1959)Panc (1964)Levinson (1980)Reddy (1984)
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Fundamentals of the Plate Theory Classical Plate Theories
Method of Hypotheses - Main Theories
Introduction of hypotheses for the stress and/or strain(displacement) state
Kirchhoff (1850)E. Reissner (1944, 1945, 1947)Bollé (1947)Hencky (1947)Mindlin (1951)Kromm (1953)B. Vlasov (1957)Ambarcumyan (1958)Mushtari (1959)Panc (1964)Levinson (1980)Reddy (1984)
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Fundamentals of the Plate Theory Classical Plate Theories
Method of Hypotheses - Main Theories
Introduction of hypotheses for the stress and/or strain(displacement) state
Kirchhoff (1850)E. Reissner (1944, 1945, 1947)Bollé (1947)Hencky (1947)Mindlin (1951)Kromm (1953)B. Vlasov (1957)Ambarcumyan (1958)Mushtari (1959)Panc (1964)Levinson (1980)Reddy (1984)
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Fundamentals of the Plate Theory Classical Plate Theories
Method of Hypotheses - Main Theories
Introduction of hypotheses for the stress and/or strain(displacement) state
Kirchhoff (1850)E. Reissner (1944, 1945, 1947)Bollé (1947)Hencky (1947)Mindlin (1951)Kromm (1953)B. Vlasov (1957)Ambarcumyan (1958)Mushtari (1959)Panc (1964)Levinson (1980)Reddy (1984)
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Fundamentals of the Plate Theory Classical Plate Theories
Method of Hypotheses - Main Theories
Introduction of hypotheses for the stress and/or strain(displacement) state
Kirchhoff (1850)E. Reissner (1944, 1945, 1947)Bollé (1947)Hencky (1947)Mindlin (1951)Kromm (1953)B. Vlasov (1957)Ambarcumyan (1958)Mushtari (1959)Panc (1964)Levinson (1980)Reddy (1984)
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Fundamentals of the Plate Theory Classical Plate Theories
Method of Hypotheses - Main Theories
Introduction of hypotheses for the stress and/or strain(displacement) state
Kirchhoff (1850)E. Reissner (1944, 1945, 1947)Bollé (1947)Hencky (1947)Mindlin (1951)Kromm (1953)B. Vlasov (1957)Ambarcumyan (1958)Mushtari (1959)Panc (1964)Levinson (1980)Reddy (1984)
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Fundamentals of the Plate Theory Classical Plate Theories
Method of Hypotheses - Main Theories
Introduction of hypotheses for the stress and/or strain(displacement) state
Kirchhoff (1850)E. Reissner (1944, 1945, 1947)Bollé (1947)Hencky (1947)Mindlin (1951)Kromm (1953)B. Vlasov (1957)Ambarcumyan (1958)Mushtari (1959)Panc (1964)Levinson (1980)Reddy (1984)
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Fundamentals of the Plate Theory Classical Plate Theories
Mathematical Approaches
Power series for the displacements, stresses and strainsLo, Christensen & Wu (1977)Vekua (1982)Krenk (1981)Touratier (1991)
Power series of the thickness coordinatesCauchy (1828)Kienzler (1982, 2002)Preusser (1984)Meenen (2001)
Asymptotic integrationGoldenweiser (1962)
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Fundamentals of the Plate Theory Classical Plate Theories
Mathematical Approaches
Power series for the displacements, stresses and strainsLo, Christensen & Wu (1977)Vekua (1982)Krenk (1981)Touratier (1991)
Power series of the thickness coordinatesCauchy (1828)Kienzler (1982, 2002)Preusser (1984)Meenen (2001)
Asymptotic integrationGoldenweiser (1962)
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Fundamentals of the Plate Theory Classical Plate Theories
Mathematical Approaches
Power series for the displacements, stresses and strainsLo, Christensen & Wu (1977)Vekua (1982)Krenk (1981)Touratier (1991)
Power series of the thickness coordinatesCauchy (1828)Kienzler (1982, 2002)Preusser (1984)Meenen (2001)
Asymptotic integrationGoldenweiser (1962)
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Fundamentals of the Plate Theory Classical Plate Theories
Mathematical Approaches
Power series for the displacements, stresses and strainsLo, Christensen & Wu (1977)Vekua (1982)Krenk (1981)Touratier (1991)
Power series of the thickness coordinatesCauchy (1828)Kienzler (1982, 2002)Preusser (1984)Meenen (2001)
Asymptotic integrationGoldenweiser (1962)
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Fundamentals of the Plate Theory Classical Plate Theories
Kirchhoff’s Model
Kirchhoff plate
Kinematical hypothesesh/min(lx , ly ) < 0.1,w/h < 0.2
εz ≈ 0
γxz , γyz ≈ 0
τxy
xy z
lx
h
hly
σx , σy τxz , τyz
nnn
nnn
Stress distribution
Normal stresses σx , σy
and shear stress τxy
linear over hτxz , τyz parabolic
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Fundamentals of the Plate Theory Classical Plate Theories
Mindlin’s Model
Mindlin plate
Kinematical hypothesesh/min(lx , ly ) < 0.2,w/h < 0.2
εz ≈ 0
γxz , γyz ≈ const
τxy
xy z
lx
h
hly
σx , σy τxz , τyz
nnn
6= nnn
Stress distribution
Normal stress σx , σy
and shear stress τxy
linear over hτxz , τyz constant over h
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Fundamentals of the Plate Theory Classical Plate Theories
Membrane Model
Membrane
No shear stresses!
x
yz
lx
h
h
ly
σx , σy
(tension stresses)
Stress distributionAssumptionsh ≪ min(lx , ly ),w/h ≥ 0.5
τxy , τxz , τyz , σz ≈ 0
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Fundamentals of the Plate Theory Classical Plate Theories
von Kármán’s Model
von Kármán plateStress distribution
h
h
h
τxyσx , σy
shear rigidmodelτxz , τyz
shear deformablemodelτxz , τyz
Assumptionsh/min(lx , ly ) < 0.1,0.2 < w/h < 5
shear rigidεz , γxz , γyz ≈ 0
shear deformableεz ≈ 0, γxz , γyz ≈ const
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Fundamentals of the Plate Theory Classical Plate Theories
Kirchhoff Plate (I)
Loading
x1,u1
u 2, x 2 x3,w
l1
l2
hPlate midsurface
Single load
Edge moment
Line loadEdge force
Surface load
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Fundamentals of the Plate Theory Classical Plate Theories
Kirchhoff Plate (II)
Kinematical relations
x1
x2
x3
dx1
dx1
dx2
dx2
x3
x3
x3
x3
x3
x3
h
h
x1,u1
x3x3
w(x1, x2)w(x1, x2)
ϕ1 ≈∂w∂x1
ϕ2 ≈∂w∂x2
u1(x1, x2, x3) u2(x1, x2, x3)
x2,u2
undeformed midsurface
w(x1, x2)
deformed midsurface
l2
l1
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Fundamentals of the Plate Theory Classical Plate Theories
Kirchhoff Plate (III)
Stress resultants
x1
x2x3
dx1
dx2qdx1dx2m11dx2
m12dx2
q1dx2
m21dx1
m22dx1
q2dx1
(m11 + m11,1dx1)dx2
(m12 + m12,1dx1)dx2
(q1 + q1,1dx1)dx2
(m22 + m22,2dx2)dx1
(m21 + m21,2dx2)dx1
(q2 + q2,2dx2)dx1
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Fundamentals of the Plate Theory Classical Plate Theories
Kirchhoff Plate (IV) - Boundary Conditions
Type Symbol Description
Rigid
clamped
Free boundary
Fixes
support
Elastic
support
Elastic
clamped
Elastic
support
- clamped
kinematical b.c.:
deflection and rotation
are equal to zero
static b.c.:
all resultants
are equal to zero
mixed b.c.:
deflection and bending moment
are equal to zero
mixed b.c.:
bending moment is zero and
the force is proportional
to the deflectionsmixed b.c.:
deflection is zero and
moment is proportional
to the cross section rotationmixed b.c.:
force is proportional
to the deflection and the moment
is proportional to the rotation
c
c
cD
cD
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Fundamentals of the Plate Theory Classical Plate Theories
Kirchhoff Plate (V)
Kirchhoff’s Edge Forces
Clampededge
Supportededge
Freeedge
E = 0
E = 0E = 0E = 0
E 6= 0
E 6= 0E 6= 0
m12 = 0m12 = 0m12 = 0
Jumpcond.
m12 6= 0m12 6= 0
h
Edge
ml12
mr12
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Fundamentals of the Plate Theory Classical Plate Theories
Kirchhoff Plate (VI)
Kirchhoff’s Edge Forces
E = −2m12
q1dy
q1dy
y
y
y
dy
dydydy
m12 + m12,ydy2
m12 + m12,ydy2
m12 − m12,ydy2
m12 − m12,ydy2
P(lx , y + 0.5dy) P(lx , y − 0.5dy)
P(lx , y)
q∗
1 = q1 + m12,y
2m12(0,0)
2m12(x ,0)2m12(x , y)
2m12(0, y)
m21dx m12dy
dx dy
m12dx
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Fundamentals of the Plate Theory Classical Plate Theories
Kirchhoff Plate (VII)
Rectangular plate with constant bending stiffness
Bending equation for simply supported plate
K∆∆w(x1, x2) = q(x1, x2)
Bending equation for elastically supported plate
K∆∆w(x1, x2) = q(x1, x2)−cw(x1, x2)
Bending vibration equation for simply supported plate
K∆∆w(x1, x2, t)+ρhw ..(x1, x2, t) = q(x1, x2, t)
Bending vibration equation for elastically supported plate
K∆∆w(x1, x2, t)+ρhw ..(x1, x2, t) = q(x1, x2, t)−cw(x1, x2, t)
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Fundamentals of the Plate Theory Classical Plate Theories
Mindlin Plate (I)
Kinematicsx1 x2
x3x3
ψ1
ψ1
ψ2
ψ2
w
−w,1
−w,2
x1,u1
x2,u2
x3,w
Eremeyev (PRz) Classic theories Cagliari, 2017 62 / 71
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Fundamentals of the Plate Theory Classical Plate Theories
Mindlin Plate (II)
Basic equations of the Mindlin theory
GhS(∆w + Φ) + q = ρhw ..,
K2[(1 − ν)∆ψ1 + (1 + ν)Φ,1]− GhS(ψ1 + w,1) =
ρh3
12ψ..
1 ,
K2[(1 − ν)∆ψ2 + (1 + ν)Φ,2]− GhS(ψ2 + w,2) =
ρh3
12ψ..
2
With (ψ1,1 + ψ2,2 = Φ) on gets(
K∆− Ghs −ρh3
12∂2
∂t2
)
Φ = Ghs ∆w
and after elimination of Φ(
∆−
ρhGhS
∂2
∂t2
)(
K∆−
ρh3
12∂2
∂t2
)
w +ρh∂2w∂t2
=
(
1−K
GhS∆ +
ρh3
12GhS
∂2
∂t2
)
q
Eremeyev (PRz) Classic theories Cagliari, 2017 63 / 71
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Fundamentals of the Plate Theory Classical Plate Theories
Mindlin Plate (III)Special cases of the Mindlin theory(
∆−
ρhGhS
∂2
∂t2
)(
K∆−
ρh3
12∂2
∂t2
)
w +ρh∂2w∂t2
=
(
1−K
GhS∆ +
ρh3
12GhS
∂2
∂t2
)
q
Neglecting the rotational inertia (ρh3 −→ 0)
K
(
∆−ρh
GhS
∂2
∂t2
)
∆w + ρh∂2w∂t2 =
(
1 −K
GhS∆
)
q
Neglecting the shear stiffness (GhS −→ ∞)(
K∆−ρh3
12∂2
∂t2
)
∆w + ρh∂2w∂t2 = q
Neglecting both the rotational inertia and the shear stiffness
K∆∆w + ρh∂2w∂t2 = q
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Fundamentals of the Plate Theory Classical Plate Theories
Comparison of both ModelsShear deformable plate Shear rigid plate
K∆∆w∗ = q, 1−ν
2K
Ghs∆Ψ − Ψ = 0 with Ψ = (ψ2,1 − ψ1,2) K∆∆w = q, Ψ = 0
w = w∗
−
KGhs
∆w∗ w∗ = w
ψ1 = −w∗
,1 −1−ν
2K
GhsΨ,2 ψ1 = −w,1
ψ2 = −w∗
,2 +1−ν
2K
GhsΨ,1 ψ2 = −w,2
m11 = −K[
w∗
,11 + νw∗
,22 +(1−ν)2
2K
GhsΨ,12
]
m11 = −K (w,11 + νw,22)
m22 = −K[
w∗
,22 + νw∗
,11 +(1−ν)2
2K
GhsΨ,12
]
m22 = −K (w,22 + νw,11)
m12 = −K[
(1−ν)w∗
,12−(1−ν)2
4K
Ghs(Ψ,11+Ψ,22)
]
m12 = −K (1 − ν)w,12
q1 = −K[
(∆w∗),1 +1−ν
2 Ψ,2]
q1 = −K (∆w),1
q2 = −K[
(∆w∗),2 +1−ν
2 Ψ,1]
q2 = −K (∆w),2Eremeyev (PRz) Classic theories Cagliari, 2017 65 / 71
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Fundamentals of the Plate Theory Non-classical Approaches
Non-classical Approaches
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Fundamentals of the Plate Theory Non-classical Approaches
Direct Approach
A priori introduction of an two-dimensional deformable sur face
W. Günther (1961)
Green et al. (1964)
Naghdi (1972)
Rothert (1973)
Zhilin (1976/82,2007)
Pal’mov (1982)
Rubin (2000)
Altenbach & Eremeyev (2008/09)
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Fundamentals of the Plate Theory Non-classical Approaches
Direct Approach
A priori introduction of an two-dimensional deformable sur face
W. Günther (1961)
Green et al. (1964)
Naghdi (1972)
Rothert (1973)
Zhilin (1976/82,2007)
Pal’mov (1982)
Rubin (2000)
Altenbach & Eremeyev (2008/09)
Eremeyev (PRz) Classic theories Cagliari, 2017 67 / 71
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Fundamentals of the Plate Theory Non-classical Approaches
Direct Approach
A priori introduction of an two-dimensional deformable sur face
W. Günther (1961)
Green et al. (1964)
Naghdi (1972)
Rothert (1973)
Zhilin (1976/82,2007)
Pal’mov (1982)
Rubin (2000)
Altenbach & Eremeyev (2008/09)
Eremeyev (PRz) Classic theories Cagliari, 2017 67 / 71
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Fundamentals of the Plate Theory Non-classical Approaches
Direct Approach
A priori introduction of an two-dimensional deformable sur face
W. Günther (1961)
Green et al. (1964)
Naghdi (1972)
Rothert (1973)
Zhilin (1976/82,2007)
Pal’mov (1982)
Rubin (2000)
Altenbach & Eremeyev (2008/09)
Eremeyev (PRz) Classic theories Cagliari, 2017 67 / 71
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Fundamentals of the Plate Theory Non-classical Approaches
Direct Approach
A priori introduction of an two-dimensional deformable sur face
W. Günther (1961)
Green et al. (1964)
Naghdi (1972)
Rothert (1973)
Zhilin (1976/82,2007)
Pal’mov (1982)
Rubin (2000)
Altenbach & Eremeyev (2008/09)
Eremeyev (PRz) Classic theories Cagliari, 2017 67 / 71
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Fundamentals of the Plate Theory Non-classical Approaches
Direct Approach
A priori introduction of an two-dimensional deformable sur face
W. Günther (1961)
Green et al. (1964)
Naghdi (1972)
Rothert (1973)
Zhilin (1976/82,2007)
Pal’mov (1982)
Rubin (2000)
Altenbach & Eremeyev (2008/09)
Eremeyev (PRz) Classic theories Cagliari, 2017 67 / 71
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Fundamentals of the Plate Theory Non-classical Approaches
Direct Approach
A priori introduction of an two-dimensional deformable sur face
W. Günther (1961)
Green et al. (1964)
Naghdi (1972)
Rothert (1973)
Zhilin (1976/82,2007)
Pal’mov (1982)
Rubin (2000)
Altenbach & Eremeyev (2008/09)
Eremeyev (PRz) Classic theories Cagliari, 2017 67 / 71
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Fundamentals of the Plate Theory Non-classical Approaches
Direct Approach
A priori introduction of an two-dimensional deformable sur face
W. Günther (1961)
Green et al. (1964)
Naghdi (1972)
Rothert (1973)
Zhilin (1976/82,2007)
Pal’mov (1982)
Rubin (2000)
Altenbach & Eremeyev (2008/09)
Eremeyev (PRz) Classic theories Cagliari, 2017 67 / 71
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Fundamentals of the Plate Theory Non-classical Approaches
Direct Approach
A priori introduction of an two-dimensional deformable sur face
W. Günther (1961)
Green et al. (1964)
Naghdi (1972)
Rothert (1973)
Zhilin (1976/82,2007)
Pal’mov (1982)
Rubin (2000)
Altenbach & Eremeyev (2008/09)
Eremeyev (PRz) Classic theories Cagliari, 2017 67 / 71
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Fundamentals of the Plate Theory Non-classical Approaches
Reference
"‘. . . everyone, who is thinking about the foundations of ContinuumMechanics, will attend the world of images of the COSSERAT brothers."’
H. SCHAEFER
from:Das Cosserat-Kontinuum, ZAMM 47(1967)8, 485 - 498
(published as a summarizing report)
Plenary Lecture at the GAMM Conference in March 1967 in Zurich
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Fundamentals of the Plate Theory Non-classical Approaches
History - 3D
Leonard Euler - introduction of the moment vector as independentquantityEugène et François Cosserat
Sur la théorie de l’élasticité, Ann. Toulouse 10, 1-116 (1896)Théorie des corps déformables, Paris, Herman, 1909
Palmov, V.A. Fundamental equations of the theory of asymmetricelasticity, PMM (1964) 28, 6, 1117
H.F. Tiersten, A.C. Eringen, R.D. Mindlin u.a. (in the 1960th)
Kröner, E. (Ed.) Mechanics of Generalized Continua, Proc. of theIUTAM-Symposium on generalized Cosserat continuum and thecontinuum theory of dislocations with applications,Freudenstatt-Stuttgart, 1967. Berlin, Springer, 1968
Nowacki, W. Theory of Asymmetric Elasticity. Oxford, PergamonPress, 1986
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Fundamentals of the Plate Theory Non-classical Approaches
History - 3D
Leonard Euler - introduction of the moment vector as independentquantityEugène et François Cosserat
Sur la théorie de l’élasticité, Ann. Toulouse 10, 1-116 (1896)Théorie des corps déformables, Paris, Herman, 1909
Palmov, V.A. Fundamental equations of the theory of asymmetricelasticity, PMM (1964) 28, 6, 1117
H.F. Tiersten, A.C. Eringen, R.D. Mindlin u.a. (in the 1960th)
Kröner, E. (Ed.) Mechanics of Generalized Continua, Proc. of theIUTAM-Symposium on generalized Cosserat continuum and thecontinuum theory of dislocations with applications,Freudenstatt-Stuttgart, 1967. Berlin, Springer, 1968
Nowacki, W. Theory of Asymmetric Elasticity. Oxford, PergamonPress, 1986
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Fundamentals of the Plate Theory Non-classical Approaches
History - 3D
Leonard Euler - introduction of the moment vector as independentquantityEugène et François Cosserat
Sur la théorie de l’élasticité, Ann. Toulouse 10, 1-116 (1896)Théorie des corps déformables, Paris, Herman, 1909
Palmov, V.A. Fundamental equations of the theory of asymmetricelasticity, PMM (1964) 28, 6, 1117
H.F. Tiersten, A.C. Eringen, R.D. Mindlin u.a. (in the 1960th)
Kröner, E. (Ed.) Mechanics of Generalized Continua, Proc. of theIUTAM-Symposium on generalized Cosserat continuum and thecontinuum theory of dislocations with applications,Freudenstatt-Stuttgart, 1967. Berlin, Springer, 1968
Nowacki, W. Theory of Asymmetric Elasticity. Oxford, PergamonPress, 1986
Eremeyev (PRz) Classic theories Cagliari, 2017 69 / 71
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Fundamentals of the Plate Theory Non-classical Approaches
History - 3D
Leonard Euler - introduction of the moment vector as independentquantityEugène et François Cosserat
Sur la théorie de l’élasticité, Ann. Toulouse 10, 1-116 (1896)Théorie des corps déformables, Paris, Herman, 1909
Palmov, V.A. Fundamental equations of the theory of asymmetricelasticity, PMM (1964) 28, 6, 1117
H.F. Tiersten, A.C. Eringen, R.D. Mindlin u.a. (in the 1960th)
Kröner, E. (Ed.) Mechanics of Generalized Continua, Proc. of theIUTAM-Symposium on generalized Cosserat continuum and thecontinuum theory of dislocations with applications,Freudenstatt-Stuttgart, 1967. Berlin, Springer, 1968
Nowacki, W. Theory of Asymmetric Elasticity. Oxford, PergamonPress, 1986
Eremeyev (PRz) Classic theories Cagliari, 2017 69 / 71
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Fundamentals of the Plate Theory Non-classical Approaches
History - 3D
Leonard Euler - introduction of the moment vector as independentquantityEugène et François Cosserat
Sur la théorie de l’élasticité, Ann. Toulouse 10, 1-116 (1896)Théorie des corps déformables, Paris, Herman, 1909
Palmov, V.A. Fundamental equations of the theory of asymmetricelasticity, PMM (1964) 28, 6, 1117
H.F. Tiersten, A.C. Eringen, R.D. Mindlin u.a. (in the 1960th)
Kröner, E. (Ed.) Mechanics of Generalized Continua, Proc. of theIUTAM-Symposium on generalized Cosserat continuum and thecontinuum theory of dislocations with applications,Freudenstatt-Stuttgart, 1967. Berlin, Springer, 1968
Nowacki, W. Theory of Asymmetric Elasticity. Oxford, PergamonPress, 1986
Eremeyev (PRz) Classic theories Cagliari, 2017 69 / 71
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Fundamentals of the Plate Theory Non-classical Approaches
History - 3D
Leonard Euler - introduction of the moment vector as independentquantityEugène et François Cosserat
Sur la théorie de l’élasticité, Ann. Toulouse 10, 1-116 (1896)Théorie des corps déformables, Paris, Herman, 1909
Palmov, V.A. Fundamental equations of the theory of asymmetricelasticity, PMM (1964) 28, 6, 1117
H.F. Tiersten, A.C. Eringen, R.D. Mindlin u.a. (in the 1960th)
Kröner, E. (Ed.) Mechanics of Generalized Continua, Proc. of theIUTAM-Symposium on generalized Cosserat continuum and thecontinuum theory of dislocations with applications,Freudenstatt-Stuttgart, 1967. Berlin, Springer, 1968
Nowacki, W. Theory of Asymmetric Elasticity. Oxford, PergamonPress, 1986
Eremeyev (PRz) Classic theories Cagliari, 2017 69 / 71
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Fundamentals of the Plate Theory Non-classical Approaches
History - 3D
Leonard Euler - introduction of the moment vector as independentquantityEugène et François Cosserat
Sur la théorie de l’élasticité, Ann. Toulouse 10, 1-116 (1896)Théorie des corps déformables, Paris, Herman, 1909
Palmov, V.A. Fundamental equations of the theory of asymmetricelasticity, PMM (1964) 28, 6, 1117
H.F. Tiersten, A.C. Eringen, R.D. Mindlin u.a. (in the 1960th)
Kröner, E. (Ed.) Mechanics of Generalized Continua, Proc. of theIUTAM-Symposium on generalized Cosserat continuum and thecontinuum theory of dislocations with applications,Freudenstatt-Stuttgart, 1967. Berlin, Springer, 1968
Nowacki, W. Theory of Asymmetric Elasticity. Oxford, PergamonPress, 1986
Eremeyev (PRz) Classic theories Cagliari, 2017 69 / 71
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Fundamentals of the Plate Theory Non-classical Approaches
History - 3D (Con’d)
Kafadar, C.B., Eringen, A.C. Polar field theories. In: Eringen (Ed.)Continuum Physics. New York, Academic Press, 1976
Capriz, G. Continua with Microstructure. New York, Springer, 1989
Eringen, A.C. Microcontinuum Field Theory. I. Foundations andSolids. New York, Springer, 1999
Eringen, A.C. Microcontinuum Field Theory. II. Fluent Media. NewYork, Springer, 2001
Rubin, M.B. Cosserat Theories: Shells, Rods and Points. Berlin,Springer, 2000 (Solid Mechanics and Its Applications, Vol. 79)
Dyszlewicz, J. Micropolar Theory of Elasticity. Berlin, Springer,2004 (Lecture Notes in Applied and Computational Mechanics,Vol. 15)
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Fundamentals of the Plate Theory Non-classical Approaches
History - 3D (Con’d)
Kafadar, C.B., Eringen, A.C. Polar field theories. In: Eringen (Ed.)Continuum Physics. New York, Academic Press, 1976
Capriz, G. Continua with Microstructure. New York, Springer, 1989
Eringen, A.C. Microcontinuum Field Theory. I. Foundations andSolids. New York, Springer, 1999
Eringen, A.C. Microcontinuum Field Theory. II. Fluent Media. NewYork, Springer, 2001
Rubin, M.B. Cosserat Theories: Shells, Rods and Points. Berlin,Springer, 2000 (Solid Mechanics and Its Applications, Vol. 79)
Dyszlewicz, J. Micropolar Theory of Elasticity. Berlin, Springer,2004 (Lecture Notes in Applied and Computational Mechanics,Vol. 15)
Eremeyev (PRz) Classic theories Cagliari, 2017 70 / 71
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Fundamentals of the Plate Theory Non-classical Approaches
History - 3D (Con’d)
Kafadar, C.B., Eringen, A.C. Polar field theories. In: Eringen (Ed.)Continuum Physics. New York, Academic Press, 1976
Capriz, G. Continua with Microstructure. New York, Springer, 1989
Eringen, A.C. Microcontinuum Field Theory. I. Foundations andSolids. New York, Springer, 1999
Eringen, A.C. Microcontinuum Field Theory. II. Fluent Media. NewYork, Springer, 2001
Rubin, M.B. Cosserat Theories: Shells, Rods and Points. Berlin,Springer, 2000 (Solid Mechanics and Its Applications, Vol. 79)
Dyszlewicz, J. Micropolar Theory of Elasticity. Berlin, Springer,2004 (Lecture Notes in Applied and Computational Mechanics,Vol. 15)
Eremeyev (PRz) Classic theories Cagliari, 2017 70 / 71
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Fundamentals of the Plate Theory Non-classical Approaches
History - 3D (Con’d)
Kafadar, C.B., Eringen, A.C. Polar field theories. In: Eringen (Ed.)Continuum Physics. New York, Academic Press, 1976
Capriz, G. Continua with Microstructure. New York, Springer, 1989
Eringen, A.C. Microcontinuum Field Theory. I. Foundations andSolids. New York, Springer, 1999
Eringen, A.C. Microcontinuum Field Theory. II. Fluent Media. NewYork, Springer, 2001
Rubin, M.B. Cosserat Theories: Shells, Rods and Points. Berlin,Springer, 2000 (Solid Mechanics and Its Applications, Vol. 79)
Dyszlewicz, J. Micropolar Theory of Elasticity. Berlin, Springer,2004 (Lecture Notes in Applied and Computational Mechanics,Vol. 15)
Eremeyev (PRz) Classic theories Cagliari, 2017 70 / 71
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Fundamentals of the Plate Theory Non-classical Approaches
History - 3D (Con’d)
Kafadar, C.B., Eringen, A.C. Polar field theories. In: Eringen (Ed.)Continuum Physics. New York, Academic Press, 1976
Capriz, G. Continua with Microstructure. New York, Springer, 1989
Eringen, A.C. Microcontinuum Field Theory. I. Foundations andSolids. New York, Springer, 1999
Eringen, A.C. Microcontinuum Field Theory. II. Fluent Media. NewYork, Springer, 2001
Rubin, M.B. Cosserat Theories: Shells, Rods and Points. Berlin,Springer, 2000 (Solid Mechanics and Its Applications, Vol. 79)
Dyszlewicz, J. Micropolar Theory of Elasticity. Berlin, Springer,2004 (Lecture Notes in Applied and Computational Mechanics,Vol. 15)
Eremeyev (PRz) Classic theories Cagliari, 2017 70 / 71
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Fundamentals of the Plate Theory Non-classical Approaches
History - 3D (Con’d)
Kafadar, C.B., Eringen, A.C. Polar field theories. In: Eringen (Ed.)Continuum Physics. New York, Academic Press, 1976
Capriz, G. Continua with Microstructure. New York, Springer, 1989
Eringen, A.C. Microcontinuum Field Theory. I. Foundations andSolids. New York, Springer, 1999
Eringen, A.C. Microcontinuum Field Theory. II. Fluent Media. NewYork, Springer, 2001
Rubin, M.B. Cosserat Theories: Shells, Rods and Points. Berlin,Springer, 2000 (Solid Mechanics and Its Applications, Vol. 79)
Dyszlewicz, J. Micropolar Theory of Elasticity. Berlin, Springer,2004 (Lecture Notes in Applied and Computational Mechanics,Vol. 15)
Eremeyev (PRz) Classic theories Cagliari, 2017 70 / 71
![Page 122: Introduction into Cosserat-type theories of beams, plates ...](https://reader030.fdocuments.us/reader030/viewer/2022012709/61a942362a4768722079ade3/html5/thumbnails/122.jpg)
Fundamentals of the Plate Theory Non-classical Approaches
History - 2D
Günther, W. Analoge Systeme von Schalengleichungen,Ing.-Arch. 30, 160-188, 1961
Naghdi, P.M. The Theory of Plates and Shells, Handbuch derPhysik VIa/2, Heidelberg, Springer, 425-640, 1972
Rothert, H. Viskoelastische Cosserat-Flächen
Rothert, H., Zastrau, B. Herleitung einer Direktortheorie fürKontinua mit lokalen Krümmungseigenschaften, ZAMM 61,567-581, 1981
Altenbach, H., Zhilin, P.A. A general theory of elastic simple shells(in Russ.), Uspekhi Mekhaniki 11 (4), 107-148, 1988
Eremeyev (PRz) Classic theories Cagliari, 2017 71 / 71
![Page 123: Introduction into Cosserat-type theories of beams, plates ...](https://reader030.fdocuments.us/reader030/viewer/2022012709/61a942362a4768722079ade3/html5/thumbnails/123.jpg)
Fundamentals of the Plate Theory Non-classical Approaches
History - 2D
Günther, W. Analoge Systeme von Schalengleichungen,Ing.-Arch. 30, 160-188, 1961
Naghdi, P.M. The Theory of Plates and Shells, Handbuch derPhysik VIa/2, Heidelberg, Springer, 425-640, 1972
Rothert, H. Viskoelastische Cosserat-Flächen
Rothert, H., Zastrau, B. Herleitung einer Direktortheorie fürKontinua mit lokalen Krümmungseigenschaften, ZAMM 61,567-581, 1981
Altenbach, H., Zhilin, P.A. A general theory of elastic simple shells(in Russ.), Uspekhi Mekhaniki 11 (4), 107-148, 1988
Eremeyev (PRz) Classic theories Cagliari, 2017 71 / 71
![Page 124: Introduction into Cosserat-type theories of beams, plates ...](https://reader030.fdocuments.us/reader030/viewer/2022012709/61a942362a4768722079ade3/html5/thumbnails/124.jpg)
Fundamentals of the Plate Theory Non-classical Approaches
History - 2D
Günther, W. Analoge Systeme von Schalengleichungen,Ing.-Arch. 30, 160-188, 1961
Naghdi, P.M. The Theory of Plates and Shells, Handbuch derPhysik VIa/2, Heidelberg, Springer, 425-640, 1972
Rothert, H. Viskoelastische Cosserat-Flächen
Rothert, H., Zastrau, B. Herleitung einer Direktortheorie fürKontinua mit lokalen Krümmungseigenschaften, ZAMM 61,567-581, 1981
Altenbach, H., Zhilin, P.A. A general theory of elastic simple shells(in Russ.), Uspekhi Mekhaniki 11 (4), 107-148, 1988
Eremeyev (PRz) Classic theories Cagliari, 2017 71 / 71
![Page 125: Introduction into Cosserat-type theories of beams, plates ...](https://reader030.fdocuments.us/reader030/viewer/2022012709/61a942362a4768722079ade3/html5/thumbnails/125.jpg)
Fundamentals of the Plate Theory Non-classical Approaches
History - 2D
Günther, W. Analoge Systeme von Schalengleichungen,Ing.-Arch. 30, 160-188, 1961
Naghdi, P.M. The Theory of Plates and Shells, Handbuch derPhysik VIa/2, Heidelberg, Springer, 425-640, 1972
Rothert, H. Viskoelastische Cosserat-Flächen
Rothert, H., Zastrau, B. Herleitung einer Direktortheorie fürKontinua mit lokalen Krümmungseigenschaften, ZAMM 61,567-581, 1981
Altenbach, H., Zhilin, P.A. A general theory of elastic simple shells(in Russ.), Uspekhi Mekhaniki 11 (4), 107-148, 1988
Eremeyev (PRz) Classic theories Cagliari, 2017 71 / 71
![Page 126: Introduction into Cosserat-type theories of beams, plates ...](https://reader030.fdocuments.us/reader030/viewer/2022012709/61a942362a4768722079ade3/html5/thumbnails/126.jpg)
Fundamentals of the Plate Theory Non-classical Approaches
History - 2D
Günther, W. Analoge Systeme von Schalengleichungen,Ing.-Arch. 30, 160-188, 1961
Naghdi, P.M. The Theory of Plates and Shells, Handbuch derPhysik VIa/2, Heidelberg, Springer, 425-640, 1972
Rothert, H. Viskoelastische Cosserat-Flächen
Rothert, H., Zastrau, B. Herleitung einer Direktortheorie fürKontinua mit lokalen Krümmungseigenschaften, ZAMM 61,567-581, 1981
Altenbach, H., Zhilin, P.A. A general theory of elastic simple shells(in Russ.), Uspekhi Mekhaniki 11 (4), 107-148, 1988
Eremeyev (PRz) Classic theories Cagliari, 2017 71 / 71
![Page 127: Introduction into Cosserat-type theories of beams, plates ...](https://reader030.fdocuments.us/reader030/viewer/2022012709/61a942362a4768722079ade3/html5/thumbnails/127.jpg)
Fundamentals of the Plate Theory Non-classical Approaches
History - 2D
Günther, W. Analoge Systeme von Schalengleichungen,Ing.-Arch. 30, 160-188, 1961
Naghdi, P.M. The Theory of Plates and Shells, Handbuch derPhysik VIa/2, Heidelberg, Springer, 425-640, 1972
Rothert, H. Viskoelastische Cosserat-Flächen
Rothert, H., Zastrau, B. Herleitung einer Direktortheorie fürKontinua mit lokalen Krümmungseigenschaften, ZAMM 61,567-581, 1981
Altenbach, H., Zhilin, P.A. A general theory of elastic simple shells(in Russ.), Uspekhi Mekhaniki 11 (4), 107-148, 1988
Eremeyev (PRz) Classic theories Cagliari, 2017 71 / 71