Fracture Problems in Pressure Vessels and Reinforced Pipes

压力容器和加固管道的断裂问题

• 批准号: 8613611
• 负责人: Fazil Erdogan
• 金额: $ 29.89万
• 依托单位: Lehigh University
• 依托单位国家: 美国
• 项目类别: Continuing grant
• 财政年份: 1986
• 资助国家: 美国
• 起止时间: 1986-11-01 至 1990-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8613611&HistoricalAwards=false
• 关键词: Fracture; Problems; Pressure; Vessels; Reinforced

This research will address three important problems: (1) the effect of material dissimilarity which occurs with cracks in clad piping and pressure vessels; (2) modeling of small surface flaws in thin-walled components under general loading conditions; and (3) basic micromechanics aspects of fractures produced by flaws at the interface regions in composites. A new analytical method has been developed for solving integral equations, and shows considerable promise in application to the solution of these three problems.

这项研究将解决三个重要问题：(1)复合管和压力容器中裂纹产生的材料差异的影响；(2)在一般加载条件下薄壁构件表面小缺陷的建模；(3)复合材料界面区域缺陷所产生的断裂的基本细观力学方面。发展了一种新的求解积分方程解的解析方法，并在这三个问题的求解中显示出很大的应用前景。