Advanced mechanics of materials
Overall Course Objectives
To explain the background for stresses resulting from large elastic (reversible) deformations as well as plastic (irreversible) material behaviour, including creep at high temperatures. To give insight and to practice the application of models for the strength of materials, for elastic and plastic deformations. This includes models for non-linear elasticity as well as isotropic and anisotropic plasticity. To determine deformation mechanisms, which are relevant for the strength of materials and structures.
See course description in Danish
Learning Objectives
- Use incremental theories for determining plastic deformations.
- Calculate plastic deformations for isotropic and kinematic hardening.
- Calculate anisotropic plastic deformations.
- Analyse viscous effects for time-dependent deformations.
- Analyse creep in metals.
- Calculate limit loads of beams and plates based on extremum principles.
- Characterize large deformations.
- Perform incremental numerical analyses.
- Characterize stresses for large deformations.
- Analyse large elastic deformations by means of hyper-elasticity models.
Course Content
Large deformations. Non-linear elasticity theory. Deformation and incremental theories for elastic-plastic materials. Convexity and normality. Equilibrium equations and extremum principles. Viscoplasticity with dependence of plastic deformation on strain rates and high temperature creep. Modern numerical methods.
Recommended prerequisites
41502/41534, Linear elastic continuum mechanics. Knowledge of tensors and linear finite element theory is recommended.
Teaching Method
Lectures and problem solving