The failure of layered ceramics in bending and tension

摘要: In this paper, a brief review is presented of previous work describing the failure behaviour simple layered ceramics in bending. Modelling has demonstrated that can be accurately and simply predicted. Based on work, an optimum relation between laminate variables, such as interfacial toughness, layer thickness strength, proposed. This then extended to predict tension. The model described predicted presented. these predictions, methods improving through promoting delamination are discussed. A similar expression derived for bending structure. Of particular interest effect very thin layers (< 10μm) behaviour. It shown enormous potential exists high reliable, failure-resistant structures control properties. incorporating different stiffness, strength also investigated. proposed controlled somewhat using approach. Comparison predictions with experiment shows good agreement. changing mode from progressive multiple cracking results modelling suggest latter approach does not appear inherently suitable high-temperature composite.