Res.2-002 Nonlinear Finite Element Analysis
Res.2-002 Nonlinear Finite Element Analysis (MIT OCW). Instructor: Professor K. J. Bathe. This course presents effective finite element procedures for the nonlinear analysis of solids and structures. The finite element method is the ideal tool for solving complex static and dynamic problems in engineering and the sciences. Nonlinear analysis models kinematic and/or materially nonlinear effects. In these lectures, general nonlinear analysis techniques are presented by emphasizing physical concepts. The mathematical foundation of nonlinear finite element techniques is given in light of these physical requirements. A wide range of questions in engineering and the sciences can be addressed with these methods. (from ocw.mit.edu)
| Lecture 18 - 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.
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