| This work concerns the development of an analytic model to predict the stress-strain and damage behavior of ceramic matrix cross-ply laminates. The validity of the model is to be assessed by experimental observations. Major features of the analysis include: prediction of transverse matrix cracking in the 90;This work presents a novel approach to analyze cross-ply ceramic composites in a rational manner, while most other analyses of ceramic composites are confined to the simpler case of unidirectional reinforcement. The analysis employs basic concepts of fracture mechanics to establish criteria for the complex process of multiple crack formation within the laminate. The incorporation of the non-linearity associated with the 0;A comprehensive mechanical testing program which complements the analytical portion of this work, provides essential verification of stress-strain data for the unidirectional and cross-ply laminates, along with quantitative information concerning damage initiation, as well as interlaminar shear strength. |
