...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>International Journal of Fatigue >Assessing The Effects Of Riveting Induced Residual Stresses On Fatigue Crack Behaviour In Lap Joints By Means Of Fractography
【24h】

Assessing The Effects Of Riveting Induced Residual Stresses On Fatigue Crack Behaviour In Lap Joints By Means Of Fractography

机译：用分形法评估铆接残余应力对膝关节疲劳裂纹行为的影响

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

The interference fit provided by solid rivets induces a residual stress field beneficial to the fatigue performance of riveted lap joints. Attributing benefits in crack growth nucleation and growth behaviour within this residual stress field is non-trivial. Once fatigue cracks become visible on the surface of a joint they have already grown beyond the region of beneficial residual stress. In order to circumvent this problem, fractographic techniques were employed to evaluate postmortem the influence of the rivet squeeze force and resulting residual stress field on crack behaviour. Results demonstrated that within the range of rivet squeeze forces studied, a 3-fold reduction in crack growth rate is achievable at high rivet squeeze forces, representing a marked improvement in damage tolerance of the joint.
机译：实心铆钉提供的过盈配合会产生残余应力场，这有利于铆接搭接接头的疲劳性能。在此残余应力场内，赋予裂纹扩展成核和生长行为的好处是不平凡的。一旦疲劳裂纹在接头表面上可见，它们就已经超出了有益残余应力的范围。为了解决这个问题，采用分形技术评估死后铆钉挤压力和残余应力场对裂纹行为的影响。结果表明，在所研究的铆钉挤压力范围内，在高铆钉挤压力下，裂纹扩展速率可实现3倍的降低，这表明接头的损伤容忍度显着提高。

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