TEAM_092 15WCEE Blind Test Challenge - Numerical Model Classification Sheet (1)
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Transcript of TEAM_092 15WCEE Blind Test Challenge - Numerical Model Classification Sheet (1)
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Numerical Model Classification Sheet 15WCEE Blind Test Challenge, September 2012
Team Name: Fatigue Group_____________________________________ Team Number: 092
Institution: Escuela Superior Politécnica del Litoral, University of British Columbia, Universidad
Técnica Particular de Loja Country: Ecuador Nº of elements:5
General description of the numerical model:
We develop a 3D model with Fiber Sections on Opensees framework, defining all material curves
and sections according with information proportionated by the challenge organization.
And using for elements: nonlinear beam-column elements, and elastic beam-column elements.
________________________________________________________________________________
PART I – Modelling Techniques
1. Formulation:
Framework method (finite element method, etc.): _Finite Element Method____________________
____________________________________________________________________
________________________________________________________________________________
Global formulation (structure level): ☒Equilibrium-based; ☐Compatibility-based; ☐Mixed; ☐Other.
Observations: ____________________________________________________________________
Local formulation (element level): ☒Equilibrium-based; ☐Compatibility-based; ☐Mixed; ☐Other.
Observations: ____________________________________________________________________
Model classification: ☐Phenomenological/Global response; ☒Fibre; ☐Local modelling; ☐Other.
Observations: ____________________________________________________________________
Geometrical formulation: ☐Linear; ☒Non-linear; ☐Other.
If Non-linear, specify type (e.g. P- effects): __ P- effects ________________________________
Observations: ____________________________________________________________________
Rigid-body movements are simulated: ☐Yes; ☒No.
If Yes, specify formulation: __________________________________________________________
2. Discretization:
Type: ☒Beam/shell elements; ☐Local discretization (e.g. concrete hexahedrons); ☐Both; ☐Other.
Observations: ____________________________________________________________________
3. Constitutive models:
Type: ☐RC global response; ☒Separate models for the materials; ☐Other.
Observations: ____________________________________________________________________
3.1 If you selected “RC global response”:
RC model description: _____________________________________________________________
________________________________________________________________________________
________________________________________________________________________________
________________________________________________________________________________
3.2 If you selected “Separate models for the materials”:
Concrete model description: _Mander Model for confined concrete with plastic hinges___________
________________________________________________________________________________
________________________________________________________________________________
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Reinforcing steel model description: __Giuffre-Mennegoto-Pinto model + Low Cycle Fatigue_____
________________________________________________________________________________
________________________________________________________________________________
________________________________________________________________________________
Other constitutive models (e.g. concrete-steel bond): _____________________________________
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________________________________________________________________________________
________________________________________________________________________________
Please select the mechanical effects included in the simulation (add effects if you want):
Concrete Reinforcing Steel Concrete-steel bond
☒ Compressive strength ☒ Yield and monotonic hardening ☐ Monotonic bond strength
☐ Tensile strength ☒ Cyclic and reverse loading response ☐ Cyclic and reverse loading response
☒ Biaxial stress states (confinement) ☒ Bauschinger effect ☐ Cyclic strength degradation
☐ Triaxial stress states ☐ Cyclic hardening ☐ Radial stress (confinement)
☒ Softening after peak stresses ☒ Low-cycle fatigue ☐ Loading-rate
☐ Localization phenomenon ☐ Buckling ☐ Bond heterogeneity
☒ Permanent deformations ☐ Loading-rate ☐ _____________________________
☐ Loading-rate ☐ Steel heterogeneity ☐ _____________________________
☐ Concrete heterogeneity ☐ _____________________________ ☐ _____________________________
☐ ____________________________ ☐ _____________________________ ☐ _____________________________
☐ ____________________________ ☐ _____________________________ ☐ _____________________________
☐ ____________________________ ☐ _____________________________ ☐ _____________________________
PART II – Implementation, Global Algorithms and Computational Characteristics
1. Implementation:
Software name: ____OPENSEES_____________________________________________________
Type: ☐Commercial; ☐Non-profit/Closed-Source; ☒ Non-profit/Open-Source; ☐Other.
Observations: ____________________________________________________________________
Operating system: ☒Windows; ☐Linux; ☐ Mac OS; ☐Other.
Observations: ____________________________________________________________________
Hardware architecture:
Type of implementation: ☐Distributed; ☒Local; ☐Other.
Observations: ____________________________________________________________________
Hardware characteristics:
Processing units (number and type): ___1 PC Intel Core I7 RAM 4 Gb _______________________
RAM Memory (amount and type): _4 GB______________________________________________
Computational architecture: ☒Sequential; ☐Concurrent (Parallel/Distributed); ☐ Other.
Observations: ____________________________________________________________________
2. Solution procedure:
Default method: ☒Newton-method; ☐Other.
If Newton-method, please describe the variant: __________________________________________
Other solving techniques (e.g. line-search, arc-length): ____________________________________
3. Time-integration method:
Method (e.g. -Method): ________________; Parameters: _______________________________
Observations: ____________________________________________________________________
Numerical damping: ☐Yes; ☐No;
If Yes, specify the formulation and damping level: ______________________________________
Observations: ____________________________________________________________________
4. Damping:
Type: ☒Proportional; ☐Other
If Proportional, specify damping level (e.g. 5% at x Hz and y Hz): __2% AT 10Hz , 2% at 2Hz___
Observations: ____________________________________________________________________
5. Problem-size:
Typical number of degrees-of-freedom or equivalent: _____330_______________________________
Typical computing time by scenario (approximately, in seconds):____200_______________________
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Notes: If your model does not fit the given options, please choose “Other” and specify your case in the
“Observations” line. If a specific item is not applicable to your case, please write “Not applicable” or “N/A”.