Analysis of ceramic matrix composites with bridging cracks in the presenceof creep

Ceramic matrix composites (CMCs) represent an attractive class of materials , particularly in aerospace applications where a combination of thermal and mechanical loads may present a challenge for a designer. An important feat ure of these materials is their ability to withstand damage without immedia te failure. This emphasizes a significance of studies of damaged CMCs, part icularly at high temperatures. In particular, the analysis of creep of CMCs with matrix cracks is important to accurately predict the response and rel iability of such materials. The solution presented in this paper concentrat es on creep in the presence of bridging cracks and uniaxial tensile load. R esidual thermal stresses and the effect of temperature on the rate of creep are incorporated into the formulation.