• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Materials Engineering and Performance >Failure During Sheared Edge Stretching
【24h】

Failure During Sheared Edge Stretching

机译：剪切边缘拉伸过程中的故障

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Failure during sheared edge stretching of sheet steels is a serious concern, especially in advanced high-strength steel (AHSS) grades. The shearing process produces a shear face and a zone of deformation behind the shear face, which is the shear-affected zone (SAZ). A failure during sheared edge stretching depends on prior deformation in the sheet, the shearing process, and the subsequent strain path in the SAZ during stretching. Data from laboratory hole expansion tests and hole extrusion tests for multiple lots of fourteen grades of steel were analyzed. The forming limit curve (FLC), regression equations, measurement uncertainty calculations, and difference calculations were used in the analyses. From these analyses, an assessment of the primary factors that contribute to the fracture during sheared edge stretching was made. It was found that the forming limit strain with consideration of strain path in the SAZ is a major factor that contributes to the failure of a sheared edge during stretching. Although metallurgical factors are important, they appear to play a somewhat lesser role.
机译：钢板在剪切边缘拉伸过程中的失效是一个严重的问题，特别是在高级高强度钢（AHSS）等级中。剪切过程会产生一个剪切面和在剪切面后面的变形区域，该区域是受剪切影响的区域（SAZ）。剪切边缘拉伸过程中的故障取决于片材先前的变形，剪切过程以及拉伸过程中SAZ中的后续应变路径。分析了来自多个十四种钢的实验室扩孔测试和孔挤出测试的数据。分析中使用了成形极限曲线（FLC），回归方程，测量不确定度计算和差值计算。通过这些分析，评估了在剪切边缘拉伸过程中导致断裂的主要因素。已经发现，考虑到SAZ中的应变路径的成形极限应变是导致拉伸过程中剪切边缘破坏的主要因素。尽管冶金因素很重要，但它们似乎起的作用要小一些。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号