Finite-Amplitude Elastic-Plastic Wave Propagation in Fiber Reinforced Composites.
Abstract
An approximate nonlinear theory is developed to describe wave guide-type propagation in unidirectional fibrous composites. The model, which is an extension of a previously developed laminate formulation, explicitly considers the effects of thermodynamics, finite deformations, and nonlinear (elastic-plastic) constitutive behavior. The theory contains microstructure and yields information on stress, deformation, and internal energy within individual components. The resulting equations assume the form of a one-dimensional binary mixture theory. Transient wave propagation solutions are obtained numerically, and are compared with essentially exact data from a well-known two-dimensional finite difference code in an effort to extract information concerning accuracy and computational economy of the mixture model. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 01, 1974
- Accession Number
- AD0778960
Entities
People
- G. A. Gurtman
- Gilbert A. Hegemier
Organizations
- University of California, San Diego