Analysis of Inelastic Deformation in Metals by the Boundary Element Method

金属非弹性变形的边界元法分析

• 批准号: 8609391
• 负责人: Subrata Mukherjee
• 金额: $ 14.05万
• 依托单位: Cornell University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1986
• 资助国家: 美国
• 起止时间: 1986-09-01 至 1989-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8609391&HistoricalAwards=false
• 关键词: Analysis; Inelastic; Deformation; Metals; Boundary

This research extends the Boundary Element Method (BEM) to a wide class of problems involving large strains and large rotations relating to the analysis of inelastic deformation of thin shells. A key issue to be resolved in the large-strain and large-rotation class of problems is the constitutive model which adequately represents material behavior while retaining efficiency in the computational procedures. Comparisons of BEM and FEM methods will be made in this study to ascertain the most effective numerical approach to each class of problems.

本研究将边界元方法(BEM)推广到与薄壳非弹性变形分析有关的一类大应变、大转动问题。在大应变、大转动这类问题中需要解决的一个关键问题是本构模型，它既能充分反映材料的行为，又能保持计算过程中的效率。在这项研究中，将比较边界元法和有限元方法，以确定对每类问题最有效的数值方法。