Some Fundamental Problems in Nonlinear Fracture Mechanics

非线性断裂力学的一些基本问题

• 批准号: 9215688
• 负责人: Walter Drugan
• 金额: $ 18万
• 依托单位: University of Wisconsin-Madison
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1992
• 资助国家: 美国
• 起止时间: 1992-09-01 至 1996-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9215688&HistoricalAwards=false
• 关键词: Some; Fundamental; Problems; Nonlinear; Fracture

The principle objective of this work is to characterize analytically the stress and deformation fields accompanying crack growth in ductile single crystals and deformation fields at interfaces joining a ductile material to a brittle one. The analytical results will be checked with full-field numerical finite element solutions, and also with experiments that correspond to the analyses. The aim is to devise local descriptions, incorporating single crystal plasticity, as a function of general remote loadings.

这项工作的主要目的是分析表征延性单晶中伴随裂纹生长的应力和变形场以及延性材料与脆性材料连接界面处的变形场。 分析结果将通过全场数值有限元解以及与分析相对应的实验进行检查。 目的是设计局部描述，结合单晶可塑性，作为一般远程载荷的函数。