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User Material Model Implementation (UMAT) based on Finite Viscoelasticity Theory for Hydrogels in Abaqus

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umat_finite_viscoelasticity

This repository consists the work of my Mini Thesis titled "Implementation of a Viscoelastic Model for Hydrogels in ABAQUS" for the M.Sc. Computer-Aided Mechanical Engineering course at RWTH Aachen University. The outcome of this work was a User Material Subroutine based on the Finite Viscoelasticity Theory with multiple relaxation mechanisms and 1-parameter Ogden Models for the strain energy function.

Contents:

  • UMAT : ABAQUS User Subroutine FORTRAN Files (UMAT)
  • optimization : MATLAB Live Scripts and Functions for parameter optimization using Levenberg-Marquardt optimization
  • report : LaTeX source and figures used for generating reportAJC.pdf

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User Material Model Implementation (UMAT) based on Finite Viscoelasticity Theory for Hydrogels in Abaqus

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  • Fortran 39.8%
  • TeX 34.7%
  • MATLAB 25.5%