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Title: A 3D Orthotropic Strain-Rate Dependent Elastic Damage Material Model.

Technical Report ·
DOI:https://doi.org/10.2172/1156935· OSTI ID:1156935

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.

Research Organization:
Sandia National Lab. (SNL-CA), Livermore, CA (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA)
DOE Contract Number:
AC04-94AL85000
OSTI ID:
1156935
Report Number(s):
SAND2014-17469; 537352
Country of Publication:
United States
Language:
English

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