| 铝合金点蚀对应力集中系数影响的分析 |
| |
| 引用本文： | 章刚,闫五柱,王晓森,刘军,岳珠峰.铝合金点蚀对应力集中系数影响的分析[J].强度与环境,2009,36(4):11-18. |
| |
| 作者姓名： | 章刚 闫五柱 王晓森 刘军 岳珠峰 |
| |
| 作者单位： | 西北工业大学工程力学系,西安,710129 |
| |
| 基金项目： | 国家自然科学基金资助项目 |
| |
| 摘 要： | 采用有限单元法建立铝合金点蚀三维圆锥体模型，对拉伸载荷下不同径深比和深度的点蚀应力场进行分析，得到点蚀有效应力集中系数巧：并在定性分析点蚀群蟛影响因素的基础上，采用分区随机数定位分布的方法，引入点蚀系数定量分析点蚀群巧。最后采用回归方法分析得到点蚀径深比、深度和点蚀系数与巧的经验公式。
|
| 关 键 词： | 点蚀 点蚀群 有效应力集中系数 有限元 点蚀系数 |
Effect of pitting corrosion on surface stress concentration factor of aluminium alloy |
| |
| ZHANG Gang,YAN Wu-zhu,WANG Xiao-sen,LIU Jun,YUE Zhu-feng.Effect of pitting corrosion on surface stress concentration factor of aluminium alloy[J].Structure & Environment Engineering,2009,36(4):11-18. |
| |
| Authors: | ZHANG Gang YAN Wu-zhu WANG Xiao-sen LIU Jun YUE Zhu-feng |
| |
| Institution: | (Department of Engineering Mechanics, Northwestern Polytechnical University, Xi＇an 710129, China) |
| |
| Abstract: | The pitting corrosion of aluminium alloy was simplified as three-dimensional cone model.Finite element method was used to analyze the stress field of the pitting corrosion with different depth and diameter-depth ratio which is under tension stress,and then the effective stress concentration factor(Kf) of the pitting corrosion was obtained.After qualitative analysis of pitting corrosion group,pitting corrosion coefficient was introduced to describe Kf by using random orientation method.Empirical equation tha... |
| |
| Keywords: | pitting corrosion pitting corrosion group effective stress concentration factor finite element pitting corrosion coefficient |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
