首页> 外文OA文献 >A review of analytical aspects of fretting fatigue, with extension to damage parameters, and application to dovetail joints
【2h】

A review of analytical aspects of fretting fatigue, with extension to damage parameters, and application to dovetail joints

机译:回顾微动疲劳的分析方面,扩展损伤参数,并应用于燕尾榫接头

代理获取
本网站仅为用户提供外文OA文献查询和代理获取服务,本网站没有原文。下单后我们将采用程序或人工为您竭诚获取高质量的原文,但由于OA文献来源多样且变更频繁,仍可能出现获取不到、文献不完整或与标题不符等情况,如果获取不到我们将提供退款服务。请知悉。

摘要

Recent advances by the authors in analytical methods for the analysis of plane fretting fatigue (FF) contact problems are described, and new consequences for FF damage are derived. Constant normal load and oscillating tangential load (the celebrated Cattaneo–Mindlin case) are considered with in-phase oscillating moderate bulk stresses, for an arbitrary spline rotated geometry and, in particular, the flat punch with rounded corners in view of application to the dovetail joints.Extremely simple, new results are found for initiation parameters such as tangential microslip and frictional energy, which have been used under certain conditions as threshold parameters for FF.Finally, it is shown that for an "almost flat" geometry, the surface damage parameters decrease, but the tensile stress concentration increases, although it becomes more localized, suggesting that for cracks eventually initiated, the likelihood of self-arrest is higher than in the equivalent Hertzian case with same loads. This seems to interpret recent experiments, although it is not clear whether the optimal geometry in terms of FF life is the perfectly flat one, or an intermediate one.
机译:描述了作者在分析平面微动疲劳(FF)接触问题的分析方法方面的最新进展,并得出了FF损伤的新结果。恒定的法向载荷和振荡切向载荷(著名的Cattaneo–Mindlin情况)被认为具有同相振荡适度的大应力,适用于任意花键旋转的几何形状,尤其是考虑到燕尾榫应用的具有圆角的平冲头极端简单的新结果被发现,如切向微滑移和摩擦能之类的初始参数,在某些条件下已用作FF的阈值参数。最后,结果表明,对于“几乎平坦”的几何形状,表面损伤参数减小,但是拉伸应力集中增加,尽管它变得更加局部化,这表明对于最终引发的裂纹,与相同载荷下等效的赫兹情况相比,自捕的可能性更高。这似乎可以解释最近的实验,尽管目前尚不清楚就FF寿命而言,最佳几何形状是完美平坦还是中间形状。

著录项

  • 作者

    Ciavarella, M.; Demelio, G.;

  • 作者单位
  • 年度 2001
  • 总页数
  • 原文格式 PDF
  • 正文语种 en
  • 中图分类

相似文献

  • 外文文献
  • 中文文献
  • 专利
代理获取

客服邮箱:[email protected]

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

OSZAR »