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Compressive residual stress induced by water cavitation peening: A finite element analysis

机译：空化喷丸引起的压缩残余应力：有限元分析

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摘要

Water cavitation peening is a recent promising method in surface treatment. It has the potential to induce compressive residual stresses that benefit the fatigue life of components similar to the other peening process. In this paper, a novel method, proposed for predicting residual stress induced on the materials subsurface treated with water cavitation peening, is presented. A bilinear elastic-plastic finite element analysis was conducted to predict to residual stresses. The three-dimensional model was based on the classical bilinear kinematic hardening model that uses two slopes (elastic and plastic) to represent the stress-strain behavior of a material. The approach provided prediction of magnitude and depth of residual stress fields in pure titanium. Effect of applied impact pressures on the residual stresses was also presented. Results of the finite element analysis modeling were in good agreement with that of the experimental measurements.
机译：空化喷丸是表面处理中最近有希望的方法。它有可能诱发压缩残余应力，从而有利于部件的疲劳寿命，类似于其他喷丸工艺。在本文中，提出了一种新的方法，该方法用于预测水蚀处理后在材料表面产生的残余应力。进行了双线性弹塑性有限元分析，以预测残余应力。三维模型基于经典的双线性运动硬化模型，该模型使用两个斜率（弹性和塑性）来表示材料的应力应变行为。该方法提供了纯钛中残余应力场的大小和深度的预测。还介绍了施加的冲击压力对残余应力的影响。有限元分析模型的结果与实验测量结果非常吻合。

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  • 来源
    《Materials & design》 |2009年第8期|3325-3332|共8页
  • 作者

    B. Han; D.Y.Ju;

  • 作者单位

    Graduate School of Saitama Institute of Technology, Fusaiji 1690, Fukaya, Saitama 369-0293, Japan School of Mechanical Engineering and Automation, University of Science and Technology, Anshan, Liaoning 114051, China;

    Department of Material Science and Engineering, Saitama Institute of Technology, Fusaiji 1690, Fukaya, Saitama 369-0293, japan;

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