Strength of Materials - ITUBetonarme Yapılar Dr. Haluk Sesigür I.T.U. Faculty of Architecture...
Transcript of Strength of Materials - ITUBetonarme Yapılar Dr. Haluk Sesigür I.T.U. Faculty of Architecture...
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Betonarme Yapılar
Dr. Haluk SesigürI.T.U. Faculty of Architecture
Structural and Earthquake Engineering WG
Strength of Materials
Introduction, Mechanical Properties
of Materials
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INTRODUCTION
Reference Books
Mechanics of Materials, SI Edition, 9/E
Russell C. Hibbeler
©2014 • Prentice Hall • Paper, 866 pp
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Education South Asia Pte Ltd
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INTRODUCTION
Other References:
Karataş, H Mukavemet 1986 Çağlayan
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Education South Asia Pte Ltd
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INTRODUCTION
Course plan:
Strength of Materials
1 Midterm + Final Exam
Theory and Application
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Course Syllabus
Internal forces.
Stress.
Strain.
Tension and compression.
Shear.
Torsion.
Bending moment.
Combined bending and shear.
Combined bending and axial force.
Buckling.
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WHAT IS MECHANICS?
Study of what happens to a “thing” (the technical name is
“BODY”) when FORCES are applied to it.
Either the body or the forces can be large or small.
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Education South Asia Pte Ltd
Mechanics
• Mechanics can be divided into 3 branches:
- Rigid-body Mechanics
- Deformable-body Mechanics
- Fluid Mechanics
• Rigid-body Mechanics deals with
- Statics
- Dynamics
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TENSION AND COMPRESSION TEST
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APPLICATIONS
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APPLICATIONS (cont)
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STRESS STRAIN DIAGRAM
• Note the critical status for strength specification
proportional limit
elastic limit
yield stress
ultimate stress
fracture stress
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STRENGTH PARAMETERS
• Modulus of elasticity (Hooke’s Law)
• Modulus of Resistance
• Modulus of Toughness
– It measures the enter area
under the stress-strain diagram
E
Eu
pl
plplr
2
2
1
2
1
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(initial slope)
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POISSON’s RATIO
long
latv
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SHEAR STRESS-STRAIN DIAGRAM
• Strength parameter G – Shear modulus of elasticity or the
modules of rigidity
• G is related to the modulus of elasticity E and Poisson’s
ratio v.
G
v
EG
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