Nonlinear Analysis

Lecture 18: Modeling of Elasto-Plastic and Creep Response II

Topics: Modeling of elasto-plastic and creep response II

  • Strain formulas to model creep strains
  • Assumption of creep strain hardening for varying stress situations
  • Creep in multiaxial stress conditions, use of effective stress and effective creep strain
  • Explicit and implicit integrations of stresses
  • Selection of size of time step in stress integration
  • Thermo-plasticity and creep, temperature-dependency of material constants
  • Example analysis: Numerical uniaxial creep results
  • Example analysis: Collapse analysis of a column with offset load
  • Example analysis: Analysis of cylinder subjected to heat treatment

Instructor: Klaus-Jürgen Bathe

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