Noninteractive Macroscopic Reliability Model for Ceramic Matrix Composites With Orthotropic Material Symmetry
Document Type
Article
Publication Date
1-1-1990
Publication Title
Journal of Engineering for Gas Turbines and Power
Abstract
A macroscopic noninteractive reliability model for ceramic matrix composites is presented. The model is multiaxial and applicable to composites that can be characterized as orthotropic. Tensorial invariant theory is used to create an integrity basis with invariants that correspond to physical mechanisms related to fracture. This integrity basis is then used to construct a failure function per unit volume (or area) of material. It is assumed that the overall strength of the composite is governed by weakest link theory. This leads to a Weibull-type model similar in nature to the principle of independent action (PIA) model for isotropic monolithic ceramics. An experimental program to obtain model parameters is briefly discussed. In addition, qualitative features of the model are illustrated by presenting reliability surfaces for various model parameters. © 1990 ASME.
Recommended Citation
Duffy, S. F. and Manderscheid, J. M., "Noninteractive Macroscopic Reliability Model for Ceramic Matrix Composites With Orthotropic Material Symmetry" (1990). Civil and Environmental Engineering Faculty Publications. 270.
https://engagedscholarship.csuohio.edu/encee_facpub/270
DOI
10.1115/1.2906196
Volume
112
Issue
4
