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Study of ratcheting by the indentation fatigue method with a flat cylindrical indenter. Part II. Finite element simulation

机译:用扁平圆柱压头通过压痕疲劳方法进行棘轮的研究。第二部分有限元模拟

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摘要

The finite element method (FEM) was used to study the flat cylindrical indentation fatigue behavior using a kinematic hardening model (A-F model). This study was motivated by the experimental work of the preceding paper [B.X. Xu and Z.F. Yue, J. Mater. Res. 21, 1793 (2006)], in which there were obvious similarities in the behavior of conventional fatigue specimens and indentation fatigue specimens. It is proposed that the A-F model can predict the indentation fatigue behavior. Generally, the experimental behavior of the indentation fatigue testing can be explained by the FEM analysis. In addition, the effect of residual stress on the indentation depth per cycle was studied. The effect of friction between the indenter and the specimen and evolution of von Mises stress beneath the indenter was also investigated. Numerical results showed that the effect of friction on the indentation depth propagation can be neglected. Further analysis showed that the steady-state indentation depth per cycle increases with increasing compressive residual stress and decreasing tensile residual stress.
机译:使用运动硬化模型(A-F模型),使用有限元方法(FEM)研究扁平圆柱压痕疲劳行为。这项研究是受前一篇论文的实验工作[B.X.徐和峰岳,J。Mater。 Res。 21,1793(2006)],其中传统疲劳试样和压痕疲劳试样的行为有明显相似之处。提出了A-F模型可以预测压痕疲劳行为。通常,压痕疲劳测试的实验行为可以通过FEM分析来解释。此外,还研究了残余应力对每个循环压痕深度的影响。还研究了压头与试样之间的摩擦力以及压头下方von Mises应力的演变。数值结果表明,摩擦对压痕深度传播的影响可以忽略。进一步的分析表明,每个循环的稳态压痕深度随着压缩残余应力的增加和拉伸残余应力的减小而增加。

著录项

  • 来源
    《Journal of Materials Research》 |2007年第1期|p.186-192|共7页
  • 作者

    B.X. Xu; Z.F. Yue;

  • 作者单位

    School of Mechanics, Civil Engineering and Architecture, Northwestern Polytechnical University, Xi'an 710072, People's Republic of China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 工程材料学;
  • 关键词

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