A Multiaxial Strength Criterion for Composites
Abstract
This document is the preprint for a paper to be published in the Proceedings of the First Navy Independent Research/Independent Exploratory Development (IR/IED) Symposium that was held at Johns Hopkins University, 20 to 22 June 1988. The document presents the development of a piecewise quadratic strength tensor theory for composites with orthogropic, transversely isotropic, and isotropic material symmetries. The proposed strength criterion improves the best available quadratic failure theory for such composites, the Tsai and Wu quadratic strength tensor theory, by including stress terms that can reflect different failure mechanisms of the composites under tension and compression. To demonstrate the applicability of the proposed theory to composites, extensive and good correlations are shown between the theory and the biaxial fracture data of five composite material systems: graphite/epoxy, graphite particulate, graphite/aluminum, glass/epoxy, and organic textolite composites. Keywords: Composite structural strength, Quadratic strength tensor theory.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 01, 1988
- Accession Number
- ADA199610
Entities
People
- P. Y. Tang