Lamina level nonlinear composite mixing model in finite element computations
Abstract
The effect of the inclusion of an advanced nonlinear mixing model for the determination of composite constitutive relations in finite element formulations on the accuracy of the analysis of composite structures and computational expense is investigated. The nonlinear mixing model considered is based on the bimodal plasticity model of Dvorak and Baehi-El-Din (1987). Presently, the material model is being implemented into various forms of finite element idealizations, including solid elements and laminated shell finite elements employing different through-the-thickness kinematic assumptions.
- Publication:
-
Enhancing Analysis Techniques for Composite Materials
- Pub Date:
- 1991
- Bibcode:
- 1991eatc.proc..197B
- Keywords:
-
- Composite Structures;
- Fiber Composites;
- Finite Element Method;
- Laminates;
- Plastic Deformation;
- Mathematical Models;
- Nonlinear Equations;
- Structural Mechanics