A Study of Fracture Phenomena in Fiber Composite Laminates. Volume III.
Abstract
The extension of linear elastic fracture mechanics from ostensibly homo-geneous isotropic metallic alloys to heterogeneous anisotropic advanced fiber composites is considered. It is analytically demonstrated that the effects of material anisotropy do not alter the principal characteris-tics exhibited by a crack in an isotropic material. The heterogeneity of fiber composites is experimentally shown to have a negligible effect on the behavior of a sufficiently long crack. A method is proposed for predicting the fracture strengths of a large class of composite laminates; the values predicted by this method show good agreement with limited experimental data. The limits imposed by material heterogeneity are briefly discussed, and areas for further study are recommended. (Author-PL)
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 01, 1973
- Accession Number
- AD0771796
Entities
People
- H. J. Konish Jr.
- T. A. Cruse
Organizations
- Carnegie Mellon University