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