Using finite element analysis (FEA) to understand the mechanical properties of ceramic matrix composites

Abstract

Ceramic matrix composites (CMCs) are replacing other materials in applications where the higher costs are offset by improvements in performance. Due to their lack of toughness they are prone to catastrophic failure. To take advantage of the potential of CMCs and to minimize risks such as component failure, modelling and analysis tools such as finite element analysis (FEA) are essential for evaluating material performance non-destructively at the operating temperatures and conditions. FEA can determine mechanical properties such as interlaminar shear properties, cumulative damage failure and crack deviation. This chapter introduces FEA and reviews the examination and validation of the design, mechanical properties and failure modes of CMCs using FEA.