Viscous and elastic-plastic material model in the ABAQUS

Kari Santaoja

Research output: Book/ReportReport


The implementation of constitutive equations into a structural analysis computer program is investigated. The material model under consideration describes pure linear elastic, elastic-plastic and viscous deformation mechanisms. The elastic-plastic material model assumes isotropic hardening and the uniaxial stress-strain curve is bilinear. The von Mises yield condition is applied. Viscous deformation is described by the equation proposed by Le Gac and Duval. This model is coded into the ABAQUS finite element method program. The time integration is carried out by the Euler forward method. The computed examples show that the implementation is carried out successfully.
Original languageEnglish
Place of PublicationEspoo
PublisherVTT Technical Research Centre of Finland
Number of pages58
ISBN (Print)951-38-4382-3
Publication statusPublished - 1993
MoE publication typeNot Eligible

Publication series

SeriesVTT Publications


  • models
  • structural analysis
  • materials
  • properties
  • viscoelasticity
  • elasticity
  • plasticity tests


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