Coupled Experimental and Analytical Investigations of Creep Crack Growth in Metallic Materials

该研究将采用高温莫尔干涉法， 高温数字图像相关获得应变， 高应力下裂纹尖端附近的位移场 温度蠕变载荷 这项工作将包括微观结构 检查损伤的产生和发展，以制定更好的 物理学的理解，同时 近端应力应变的解析解和数值解 领域的 最终目标是开发改进的方法， 预测材料和结构的蠕变损伤。//

The research will apply high temperature Moire interferometry and high temperature digital image correlation to obtain strain and displacement fields in the vicinity of crack tips under high temperature creep loading. THe work will include microstructural examination of damage initiation and growth to develop a better understanding of the physics, at the same time advancing analytical and numerical solutions for the near tip stress-strain fields. The ultimate aim is to develop improved methods for prediction of creep damage in materials and structures.//