A 3D Orthotropic Strain-Rate Dependent Elastic Damage Material Model.
A three dimensional orthotropic elastic constitutive model with continuum damage and cohesive based fracture is implemented for a general polymer matrix composite lamina. The formulation assumes the possibility of distributed (continuum) damage followed b y localized damage. The current damage activation functions are simply partially interactive quadratic strain criteria . However, the code structure allows for changes in the functions without extraordinary effort. The material model formulation, implementation, characterization and use cases are presented.
- Publication Date:
- OSTI Identifier:
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- Resource Type:
- Technical Report
- Research Org:
- Sandia National Lab. (SNL-CA), Livermore, CA (United States)
- Sponsoring Org:
- USDOE National Nuclear Security Administration (NNSA)
- Country of Publication:
- United States
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