Wrinkling in Sheet Metal Forming

金属板材成形中的起皱

• 批准号: 8517121
• 负责人: Lawrence Lee
• 金额: $ 13.61万
• 依托单位: University of Notre Dame
• 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: 1986-03-01 至 1988-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8517121&HistoricalAwards=false
• 关键词: Wrinkling; Sheet; Metal; Forming

The research will address three types of wrinkling problems in sheet metal forming: (1) wrinkling of metal sheets in finite stretching and unequal edge constraints; (2) wrinkling of unevenly stretched metal sheets; and (3) wrinkling of partially stretched metal sheets. Each of these three problems can be divided into two parts: prewrinkling finite deformation and bifurcation analysis. By taking a unified approach to the problem of wrinkling, a scientific approach to preventing wrinkling during forming will be developed.

本文主要研究了板料成形中的三种起皱问题：(1)有限拉伸和不等边约束下的板料起皱问题；(2)拉伸不均匀的金属片起皱；(3)部分拉伸的金属片起皱。这三个问题中的每一个都可以分为两个部分：起皱前有限变形和分岔分析。通过对起皱问题采取统一的方法，将开发一种科学的方法来防止成形过程中的起皱。