Three-dimensional finite deformation viscoelastic model accounting for damage effects
In this paper, a fully three-dimensional finite deformation isotropic viscoelastic model is developed with the following characteristics: (a) Uncoupled bulk response over any range of deformations; (b) Generalization of the classical standard solid of the linearized theory; and (c) Both for relaxation times either extremely small or very large, the model exactly reduces to the classical Mooney-Rivlin model of rubber elasticity. In addition, a damage mechanism is incorporated into the model of the type previously developed by the authors in the context of the linearized theory. This is a three-dimensional isotropic damage mechanism based on the maximum value attained by a scalar function of certain deviatoric Lagrangian strain measure. The resulting 5-parameter finite deformation damage model has been implemented in the finite element computer program FEAP. The coding architecture also is compatible with the NIKE2D codes currently in use at LLNL.
- Research Organization:
- California Univ., Berkeley (USA). Dept. of Civil Engineering
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 5528245
- Report Number(s):
- UCRL-15679; UCB/SESM-85/02; ON: DE85012951
- Resource Relation:
- Other Information: Portions of this document are illegible in microfiche products
- Country of Publication:
- United States
- Language:
- English
Similar Records
DYNA3D. Explicit 3-d Hydrodynamic FEM Program
DYNA3D. Explicit 3-D Hydrodynamic FEM Program