徐中,王岳峰,仲强,王磊,徐文骥.三维多粗糙峰涂层等效应力分析与表征[J].表面技术,2010,39(5):35-38,44.
XU Zhong,WANG Yue-feng,ZHONG Qiang,WANG Lei,XU Wen-ji.Analysis and Characterization of Three-dimensional Multi-asperity Coatings Equivalent Stress[J].Surface Technology,2010,39(5):35-38,44 |
| 三维多粗糙峰涂层等效应力分析与表征 |
| Analysis and Characterization of Three-dimensional Multi-asperity Coatings Equivalent Stress |
| 投稿时间：2010-06-20 修订日期：2010-10-10 |
| DOI： |
| 中文关键词: 粗糙峰 等效米塞斯应力 有限元法 涂层 |
| 英文关键词:asperity equivalent Von Mises stress finite element method coating |
| 基金项目:国家自然科学基金重大研究计划项目(90923022);大连市科技计划项目(2008A14GX242) |
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| Author | Institution |
| XU Zhong | School of Mechanical Engineering, Dalian University of Technology, Dalian 116024, China |
| WANG Yue-feng | School of Mechanical Engineering, Dalian University of Technology, Dalian 116024, China |
| ZHONG Qiang | School of Mechanical Engineering, Dalian University of Technology, Dalian 116024, China |
| WANG Lei | School of Mechanical Engineering, Dalian University of Technology, Dalian 116024, China |
| XU Wen-ji | School of Mechanical Engineering, Dalian University of Technology, Dalian 116024, China |
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| 中文摘要: |
| 利用有限元方法建立了刚性平面与多粗糙峰涂层的弹性接触模型,研究了刚性平面分别与二维涂层粗糙峰、三维涂层粗糙峰的接触状态,揭示了涂层/基体弹性模量比、涂层厚度、粗糙峰间距、刚性平面压下深度对涂层粗糙峰表面、涂层/基体界面等效应力分布及涂层基体变形的影响规律。计算结果表明:压下深度对涂层粗糙峰表面最大等效米塞斯应力的影响最大,涂层厚度和涂层/基体弹性模量比的影响次之,粗糙峰间距的影响最小;增大涂层厚度,减小压下深度、粗糙峰间距和低弹性模量比,会使得最大等效应力值显著降低。 |
| 英文摘要: |
| A finite element method was applied to establish elastic two-dimensional and three-dimensional contact model between rigid surface and asperity on the coating surface. The influences of elastic modulus ratio, coating thickness, spacing of asperity and indentation depth on the stress distribution and total deformation on asperity and coating/substrate interface were revealed. The results show that the influence of indentation depth is greatest on the peck value of equivalent stress. The influence of coating thickness,elastic modulus ratio, spacing of asperity decreases gradually.It is found that the smaller the elastic modulus ratio,indentation depth, spacing of asperity and the larger the coating thickness, the smaller the peck value of equivalent stress. |
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