Presidential Young Investigator Award: Fracture Mechanics and Plasticity

该奖项支持分析固体力学的研究，主要专业领域是断裂力学和塑性。这方面的许多研究都是为了发展非线性断裂力学的理论基础。主推力是弹塑性材料中稳定裂纹扩展及其向突变断裂过渡的分析和预测。一个目标是发展一种近似的分析方法来评估不同载荷和试样对近尖端弹塑性场的影响。然后根据导出的近尖端场，给出裂纹扩展和失稳判据。最终目标是开发能够预测延性裂纹扩展的分析标准，从最初的良好约束屈服到大规模和一般屈服。

This award supports research in analytical solid mechanics, with principal areas of specialization being fracture mechanics and plasticity. Much of this research is directed toward the development of the theoretical foundations of non-linear fracture mechanics. A principal thrust is the analysis and prediction of stable crack growth and its transition to catastrophic fracture in elastic-plastic materials. One objective is to develop an approximate analytical method for assessing how different loadings and specimens affect near-tip elastic-plastic fields. Crack growth and instability criteria are then based on the near-tip fields derived. An ultimate goal is to develop analytical criteria capable of predicting ductile crack growth throughout the range from initial well-contained yielding up through large-scale and general yielding.