...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>SAE International Journal of Materials and Manufacturing >Development of Friction Stir Weld Fatigue Evaluation Procedure Using Battelle Structural Stress Method
【24h】

Development of Friction Stir Weld Fatigue Evaluation Procedure Using Battelle Structural Stress Method

机译：基于Battelle结构应力法的搅拌摩擦焊接疲劳评估程序的建立。

获取原文
获取原文并翻译 | 示例
   

获取外文期刊封面封底 >>

       
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Weld fatigue evaluation using the mesh-insensitive Battelle structural stress method has been applied to fusion welds, resistance spot welds and non-welded components. The effectiveness of the Battelle structural stress procedure has been demonstrated in a series of earlier publications for welded structures with different joint types, plate thicknesses, and loading modes. In this paper, a weld fatigue evaluation procedure using the Battelle structural stress method is proposed for friction stir welds currently being used in the automotive and aerospace industries. The applicability of the Battelle structural stress procedure is demonstrated by comparing fatigue life predictions for friction stir welded specimens to well-documented test data from the literature. Different specimen types, plate thicknesses and loading ratios were analyzed for several aluminum alloys. Based on this investigation, a FE based fatigue evaluation procedure for fiction stir welds is established and a master S-N design curve for friction stir welds is constructed. As anticipated the master S-N design curve based on the equivalent structural stress range consolidates the test data with a small scatter band regardless of specimen type and thickness. However, this consolidation clearly shows a load ratio effect. Other fatigue important characteristics of friction stir welds of aluminum alloy are discussed.
机译：使用对网格不敏感的Battelle结构应力方法进行的焊接疲劳评估已应用于融合焊，电阻点焊和非焊接部件。 Battelle结构应力程序的有效性已在一系列较早的出版物中得到了证明，适用于具有不同接头类型，板厚和加载方式的焊接结构。在本文中，提出了一种使用Battelle结构应力方法的焊接疲劳评估程序，用于目前在汽车和航空航天工业中使用的搅拌摩擦焊。通过将搅拌摩擦焊接试样的疲劳寿命预测与文献中记录充分的测试数据进行比较，证明了Battelle结构应力程序的适用性。分析了几种铝合金的不同样品类型，板厚度和负载率。基于此调查，建立了基于FE的摩擦搅拌焊疲劳评估程序，并构建了摩擦搅拌焊的主S-N设计曲线。如预期的那样，基于等效结构应力范围的主S-N设计曲线将测试数据合并为一个较小的散射带，而与样品类型和厚度无关。但是，这种合并清楚地显示了负载比率效应。讨论了铝合金搅拌摩擦焊的其他疲劳重要特性。

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