Failure, Fracture, & Damage
Instructor
- Professor Ala (Al) Tabiei
Failure, Fracture, & Damage
Prerequisites
- Equivalent knowledge to an introductory class in LS-DYNA® is recommended.
Syllabus
This course teaches you how to model fracture, damage, and failure in LS-DYNA. The different methodologies to model failure and fracture in LS-DYNA will be presented and discussed. All formulations in LS-DYNA, including Lagrangian, Eulerian, SPH, XFEM, EFG, and DEM, will be discussed. This course includes several examples, designed to illustrate and reinforce the concepts presented.
Content
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Introduction & historical review
- Brittle failure
- Ductile failure
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Fundamental theoretical concepts
- Failure theories
- Damage models
- Fracture mechanics
- Element erosion: advantages & shortcomings
- Current LS-DYNA capabilities to model failure and damage
- Current LS-DYNA capabilities to model fracture
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Fracture & computational methods
- Lagrangian
- Eulerian
- SPH
- SPG
- XFEM
- EFG
- DEM
- Fracture verification examples
- Post-processing fracture problems
- MAT_ADD_EROSION & the GISSMO model
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Material models with failure
- Isotropic materials
- Hyperelastic materials
- Composite materials
- Geotech materials
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Modeling delamination and debonding in LS-DYNA
- Cohesive elements
- Tied contact with failure
- Summary and concluding remarks