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Microstructural Modeling and Representation of Simultaneous Failure Modes in Crystalline Aggregates Subjected to Dynamic Loading Conditions

机译:动态加载条件下结晶集料同时失效模式的微结构建模与表示

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This provides an integrated framework to simultaneously handle different interrelated physical mechanisms, such as a myriad of representative dislocation-density interactions with high and low angle GB interfaces, the growth and coalescence of a population of voids, and how these interactions can lead to either intergranular or transgranular failure. The formation of pile- ups at GB interfaces, as a function of dislocation-density partial and total blockage and absorption at GB interfaces, will be determined and related to behavior at the grain and aggregate levels. How pile-ups form, and whether stress fields accumulate or are relaxed by GB distributions and orientations, GB morphology, and local cohesive strengths, will be determined and related to void nucleation, growth, and coalescence.

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