IFB

 
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Tutorial and material calibration examples for PAM-CRASH, PAM-FORM and PAM-OPT

 

Version date:  2nd January 2013

Codes:

PAM-CRASH            - A general purpose Explicit and Implicit finite element code for impact, crash and static simulation

PAM-FORM             - An Explicit finite element code for composites drape simulation

PAM-OPT                - A general purpose optimisation code

Visual Mesh             - For handling CAD data and finite element mesh generation

Visual Environment   - For definition of model entities (loading, boundary conditions, etc.) and material properties

Visual Viewer           - For visualisation of results

 

Code downloads

ESI education versions of the Explicit finite element code PAM-CRASHTM and the pre-and post-processors (Visual) to generate models and visualise results are available at   http://virtualperformance.esi-group.com/education. Currently these codes are available free after registration.

These downloads provide older versions of the codes (2008) than used for the tutorials, but they will work. However, within the next few months the current version of the codes (V2012) will be available which are fully compatible with the tutorials.

 

Tutorial and material model calibration examples:

1.    Micro-mechanics download (IFB code)

2.    Excel code for Global ply damage and plasticity parameters

 

Tutorial exercises

·           For tutorials 1, 3, 5 and 13 Visual Mesh is used to generate the FE mesh. For the remaining problems completed FE meshes are supplied to limit the length of the exercises. For each tutorial completed PAM-CRASH/PAM-FORM analysis datasets are also provided.

·           Tutorials 1-2, 3-4 and 5-6 should be tackled together as, in each case, the first part mainly concerns building to model which is then followed by the second part for analysis.

·           Each tutorial has requires about 1-2 hours to complete. The links below access documentation, meshes and completed datasets for each tutorial.

 

Tutorials (1-6): Introduction (Implicit and Explicit FE)

Mesh File(s)

Completed PAM-CRASH File(s)

 


Tutorial 1,2 - Cantilever beam (pdf)

Explicit Analysis

10 mm mesh

5 mm mesh

2.5 mm mesh

10 mm mesh – Critical damping

10 mm mesh – 20% Critical damping

5 mm mesh – Full integration elements

5 mm mesh – Triangular elements

10 mm mesh – Convergence study

5 mm mesh – Convergence study

2.5 mm mesh– Convergence study

Implicit Analysis

10 mm mesh

5 mm mesh

2.5 mm mesh

5 mm mesh – Geometric non-linear analysis

 

Directory (Meshes)

Cantilever_10mmMesh.pc

 

Directory (Models Explicit)

Cantilever_10mmModel.pc

Cantilever_5mmModel.pc

Cantilever_2.5mmModel.pc

Cantilever_10mmModel_CritDamping.pc

Cantilever_10mmModel_0.2CritDamping.pc

Cantilever_5mmModel_0.2Damp_FullIntegration.pc

Cantilever_5mmTriModel_0.2Damp_FullIntegration.pc

Cantilever_10mmModel_ConvergenceStudy.pc

Cantilever_5mmModel_ConvergenceStudy.pc

Cantilever_2.5mmModel_ConvergenceStudy.pc

Directory (Models Implicit)

Cantilever_10mmModel_Implicit.pc

Cantilever_5mmModel_Implicit.pc

Cantilever_2.5mmModel_Implicit.pc

Cantilever_5mmModel_Implicit_GNL.pc

 


Tutorial 3,4 – Hole in Plate (pdf)

Explicit Analysis

Full model – Elastic analysis

Quarter model – Coarse mesh elastic analysis

Quarter model – Fine mesh elastic analysis

Full model - Plastic analysis

Quarter model – Coarse mesh plastic analysis

Quarter model – Fine mesh plastic analysis

Implicit Analysis

Full model – Elastic analysis

Quarter model – Coarse mesh elastic analysis

Quarter model – Fine mesh elastic analysis

Full model - Plastic analysis

Quarter model – Coarse mesh plastic analysis

Quarter model – Fine mesh plastic analysis

 

Directory (Meshes)

HoleInPlate_FullMesh.pc

HoleInPlate_QuarterMesh.pc

HoleInPlate_RefinedQuarterMesh.pc

 

Directory (Models Explicit)

HoleInPlate_FullModel_Elastic.pc

HoleInPlate_QuarterModel_Elastic.pc

HoleInPlate_RefinedQuarterModel_Elastic.pc

HoleInPlate_FullModel_Plastic.pc

HoleInPlate_QuarterModel_Plastic.pc

HoleInPlate_RefinedQuarterModel_Plastic.pc

Directory (Models Implicit)

HoleInPlate_FullModel_Elastic_Implicit.pc

HoleInPlate_QuarterModel_Elastic_Implicit.pc

HoleInPlate_RefinedQuarterModel_Elastic_Implicit.pc

HoleInPlate_FullModel_Plastic_Implicit.pc

HoleInPlate_QuarterModel_Plastic_Implicit pc

HoleInPlate_RefinedQuarterModel_Plastic_Implicit.pc

 


Tutorial 5,6 – Adhesive Joints (pdf)

Explicit Analysis

Single Lap– Elastic analysis

Single Lap – Elasto-plastic analysis

Single Lap – Elasto-plastic analysis with Failure

Double Lap – Elasto-plastic analysis with Failure

Implicit Analysis

Single Lap – Elastic analysis

Single Lap – Elasto-plastic analysis

Single Lap – Elasto-plastic geometric NL analysis

 

Directory (Mesh)

SingleLap_Mesh.pc

 

Directory (Models Explicit)

SingleLap_Elastic.pc

SingleLap_ElasticPlastic.pc

SingleLap_ElasticPlastic_Failure.pc

DoubleLap_ElasticPlastic_Failure.pc

Directory (Models Implicit)

SingleLap_Elastic_Implicit.pc

SingleLap_ElasticPlastic_Implicit.pc

SingleLap_ElasticPlastic_Implicit_GNL.pc

 

 

Tutorials (7-9): Crash specific (Explicit FE)

 

Mesh File(s)

 

Completed PAM-CRASH File(s)

 



Tutorial 7 – Axial Crash of a Box Beam (pdf)

Explicit Analysis

Box beam – crushing of coarse mesh model

Box beam – crushing of medium mesh model

Box beam – crushing of fine mesh model

Box beam – medium model with more Spotwelds

Box beam – medium, more Spotwelds, Thk 1.75

Box beam – medium, more Spotwelds, Thk 2.5

None

 

Directory (Models Explicit)

BoxBeam_CourseMesh.pc

BoxBeam_MediumMesh.pc

BoxBeam_FineMesh.pc

BoxBeam_MediumModel_MoreSpotWelds.pc

BoxBeam_MediumModel_MoreSpotWelds_Thk175.pc

BoxBeam_MediumModel_MoreSpotWelds_Thk250.pc

 

 


Tutorial 8 – Simple Truck Front Crash (pdf)

Explicit Analysis

Frontal crash of a simple truck vehicle

None

Directory (Model Explicit)

Truck_Front.pc

 


Tutorial 9 – Truck with dummy/airbag (pdf)

Explicit Analysis

Frontal crash of a simple truck vehicle (= Tutorial 8) plus safety features for airbag, belt and seat

 

None

 

Directory (Model Explicit)

TruckFront_H3_Bag_Belt.pc

truck.inc

hybrid3.inc

driver_belt.inc

barrier_front.inc

bag1.inc

 

 

Tutorials (10-12): Composite materials

 

Mesh File(s)

 

Completed PAM-CRASH File(s)

 


Tutorial 10 – Impact of Composite Disc (pdf) (Explicit Analysis

Impact of composite disc: Multilayered shell element

 

Directory (Mesh)

Disc_Composite_SingleMultiplyShell_Mesh.pc

 

Directory (Model Explicit)

Disc_Composite_SingleMultiplyShell.pc

 


Tutorial 11 –  Delamination of Composite DCB Specimen (pdf)

Explicit Analysis

DCB specimen: Delamination interface only

 

 

Directory (Mesh)

DCB_Mesh.pc

 

 

Directory (Model Explicit)

DCB_Delamination_Untufted.pc

 


Tutorial 12 –  Impact of Composite Disc with Delamination (pdf)

Explicit Analysis

Impact of composite disc: Multilayered shell and delamination interfaces

 

 

Directory (Mesh)

CompositeDisc_MultiLayered_Delam_Mesh.pc

 

 

Directory (Model Explicit)

CompositeDisc_MultiLayered_Delam.pc

 

 

 

Tutorial 13: Fabric draping (PAM-FORM)


Tutorial 13 –  Draping of a Simple Fabric over a Hemisphere (pdf)

Explicit Analysis

Draping of a woven fabric: Single woven fabric model (140) with rigid tooling and contact interfaces

 

 

Directory (Mesh)

Hemisphere_Mesh.pc

 

 

Directory (Model Explicit)

Hemisphere_Model.pc

 

 

Tutorial 14: Optimisation (PAM-OPT)

Documentations

Mesh File(s)

Completed PAM-CRASH File(s)

Tutorial 14 – General optimisation

1. Installation of PAM-OPT (pdf)

2.  Optimisation of a medieval catapult (Trebuchet) to hit a target (pdf)

PAM-OPT and PAM-CRASH Explicit Analysis

·     A medieval catapult system (Trebuchet) is modeled and for optimisation using PAM-OPT and PAM-CRASH. Catapults parameters are optimised for desired height and throwing distance.

·     The model demonstrates the structure of a PAM-OPT analysis. Different optimisation methods are compared including Gradient, RSM and Genetic methods.

None

Directory and sub-directories

(For all PAM-CRASH, PAM-OPT and

Visual .tpl files)

 

 

Material calibration:

·         Composite models 30 and 131 (Ply types 0,1,7 and 8)

·         Composite draping model 140

 

Documentations

Mesh File(s)

Completed PAM-CRASH File(s)

 


Models 30/131(Ply types 0,8): Bi-phase UD and woven composites for elastic, damage and failure (calibration process) (pdf)

Explicit Analysis

Simple calibration of a UD and woven composite for elastic, damage and failure using a single element under various loadings

For additional information see the PAM-CRASH reference and notes pages for:

Mat 131 (ply types 0,8) Ply cards

Mat 131 (ply types 0,8) Material cards

Mat 131 (ply types 0,8) Parts cards

None

Directory (Elastic+Failure calibration)

Elastic datasets:

1.      Ply0_TensionX_Elastic.pc

2.     Ply0_CompressionX_Elastic.pc

3.     Ply0_TensionY_Elastic.pc

4.     Ply0_ShearXY_Elastic.pc

Failure datasets:

1.      Ply0_TensionX_FibreFailure.pc

2.     Ply0_ShearXY_MatrixShearFailure.pc

3.     Ply0_TensionX_FibreFailure+MatrixShearFailure.pc

4.     Ply0_TensionY_Failure.pc

4 Plies failure

 


Model 131 (Ply types 1,7): Global Ply UD and woven composite for elastic, plastic, damage and failure (calibration process) (pdf)

Explicit Analysis

Simple calibration of a UD and woven composite for elastic, plastic damage and failure using a single element under various loadings

For additional information see the PAM-CRASH reference and notes pages for:

Mat 131 (ply types 1,7) Ply cards

Mat 131 (ply types 1,7) Material cards

Mat 131 (ply types 1,7) Parts cards

None

Directory (Elastic+Failure calibration)

Ply1_TensionX_Elastic.pc

Ply1_CompressionX_Elastic.pc

Ply1_ShearXY_Elastic.pc

 

Ply1_TensionX_ElasticFibreFailure.pc

Ply1_CompressionX_ElasticFibreFailure.pc

Ply1_ShearXY_ElasticDamageFailure_Option1_Plastic.pc

Ply1_ShearXY_ElasticDamageFailure_Option2_Plastic.pc

Ply1_ShearXY_ElasticDamageFailure_Option3_Plastic.pc

Ply1_ShearXY_ElasticDamageFailure_Option3_Plastic_Cyclic.pc

 

Beschreibung: Beschreibung: Beschreibung: Beschreibung: 06-03 Test 11 Para Init I

Model 140: Fabric draping (pdf)

Explicit Analysis

Simple calibration of the composites fabric model for draping simulation

For additional information see the PAM-FORM reference and notes pages for:

Mat 140 Material cards

Mat 140 associated Parts cards

None

Directory (for shear stiffness)

Picture frame - Single element picture frame (3 parameters)

Picture frame - Single element picture frame (Curve function)

Picture frame – Fine mesh for stiffness

Picture frame – Fine mesh for stiffness with buckling

Picture Frame - Test curve

Excel VBA code for shear calibration

 

Directory (for bending stiffness)

Datasets for 50, 75, 100, 125 and 150mm overhang bending

 

 

 

Software downloads:

1.    Composites Micromechanics (VBA Excel)

2.    Excel code for Global ply damage and plasticity parameters