Thermal Shock Fracture of the Interface Between Dissimilar Materials

该提案的目的是研究热冲击对两种不同材料之间界面处裂纹的影响。这个问题很重要的结构的例子包括先进绝热发动机开发中的陶瓷衬里；纤维增强复合材料；微电子元件中的玻璃与金属和陶瓷与金属的粘接；以及通过粘合剂将两种不同材料连接在一起的其他应用。热冲击载荷是影响这些结构合理设计和使用的重要问题。研究将考虑热传递对两种不同材料界面处裂纹的热应力和断裂力学的影响。PI是一位年轻的研究员，有着良好的成就记录。建议设立一个奖项。

The objective of the proposal is to investigate the effect of thermal shock on a crack at the interface between two dissimilar materials. Examples of structures where this problem is important include the ceramic liners in the development of advanced adiabatic heat engines; fiber reinforced composite materials; glass to metal and ceramic to metal bonds in microelectronic components; and other applications where two dissimilar materials are joined together by adhesives. The thermal shock loading is an important problem whicn affects the proper design and use of these structures. The research will consider the effect of heat transfer on the thermal stresses and the fracture mechanics of the cracks at the interface of two dissimilar materials. The PI is a young researcher with a fine record of accomplishments. An award is recommended.