Scalar and Vectorized User Defined Material Routines in LS-DYNA

FOA-R--00-01502-311--SE
April 2000
ISSN 1104-9154

Mattias Unosson, Eric Buzaud

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Abstract
In the report a description of how to write, implement and use your own material models in the finite element code LS-DYNA. Two material models (elastic and elastic-plastic) are implemented in the formats scalar and vectorized and verified with material models from the LS-DYNA standard library using a simple problem. Problems with programming and different systems are discussed and also how to handle options like equation of state, erosion etc.

The report is a result from a cooperation with Dynalis, France.