User Documentation for a Liver Constitutive Model

Report Number:
ARL-TN-1273

Publish Date:

September 2, 2025

Distribution:

Approved for public release: distribution is unlimited.


Author(s):

John D. Clayton

Abstract:

This technical note provides user documentation for a constitutive model of the liver implemented as a user-material subroutine in the LSDYNA software. History variables, material parameters, and user-specified controls are identified. Syntax for the material model block in the LS-DYNA input file is explained. A sample input file for deformation of a single hexahedral element is provided with recommended values of parameters.

File Size: 2 MB
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