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Method of arresting fatigue crack growth in metal member, and fatigue crack growth-arrested metal member

机译:抑制金属构件中的疲劳裂纹扩展的方法以及疲劳裂纹扩展被阻止的金属部件

摘要

In a method of arresting fatigue crack growth in a metal member, a hole is formed beside a tip portion of a fatigue crack with respect to a crack extension direction, in a metal member body, in which the fatigue crack occurs due to an action of applied cyclic tensile stress. Then, a press-fit object being higher in stiffness than the metal member body and larger in external size than the hole is press-fitted into the hole. Compressive stress is made to act on the tip portion of the fatigue crack from directions lateral to the crack extension direction.
机译:在抑制金属构件中的疲劳裂纹扩展的方法中,在金属裂纹构件中,相对于裂纹扩展方向,在疲劳裂纹的前端部的附近,在因裂纹的作用而产生疲劳裂纹的金属孔中形成有孔。施加的循环拉伸应力。然后,将刚性比金属构件主体高并且外部尺寸比孔大的压入物体压入到孔中。使压缩应力从横向于裂纹扩展方向的方向作用于疲劳裂纹的尖端部分。

著录项

  • 公开/公告号US8984955B2

    专利类型

  • 公开/公告日2015-03-24

    原文格式PDF

  • 申请/专利权人 IHI CORPORATION;

    申请/专利号US201414257041

  • 发明设计人 MASASHI MOURI;

    申请日2014-04-21

  • 分类号G01N3;G01N19/08;G01N29/04;G01N3/08;B23P6/04;

  • 国家 US

  • 入库时间 2022-08-21 15:19:37

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