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
Related Resources
Study Guide (PDF)
Readings
Sections 6.6.3, 6.6.4
References
Snyder, M. D., and K. J. Bathe. “A Solution Procedure for Thermo-Elastic-Plastic and Creep Problems.” Nuclear Engineering and Design 64 (March 1981): 49-80.
Rammerstorfer, F. G., et al. “On Thermo-Elastic-Plastic Analysis of Heat-Treatment Processes Including Creep and Phase Changes.” Computers & Structures 13 (October-December 1981): 771-779.
Kojic, M., and K. J. Bathe. “The 'Effective-Stress-Function' Algorithm for Thermo-Elasto-Plasticity and Creep.” International Journal for Numerical Methods in Engineering 24 (August 1987): 1509-1532.
Kojic, M., and K. J. Bathe. “Thermo-Elastic-Plastic and Creep Analysis of Shell Structures.” Computers & Structures 26 (1987): 135-143.
Eterovic, A. L., and K. J. Bathe. “A Hyperelastic-Based Large Strain Elasto-Plastic Constitutive Formulation with Combined Isotropic-Kinematic Hardening Using the Logarithmic Stress and Strain Measures.” International Journal for Numerical Methods in Engineering 30 (October 20, 1990): 1099-1114.
Montans, F. J., and K. J. Bathe. “Computational Issues in Large Strain Elasto-Plasticity: An Algorithm for Mixed Hardening and Plastic Spin.” International Journal for Numerical Methods in Engineering 63 (May 14, 2005): 159-196.
