| 基于有限元模拟的SUS304奥氏体不锈钢摩擦耦合变形过程的应力分析 |
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| 引用本文： | 伍婵娟,周升,付艳超,韦习成.基于有限元模拟的SUS304奥氏体不锈钢摩擦耦合变形过程的应力分析[J].摩擦学学报,2010,30(6):596-600. |
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| 作者姓名： | 伍婵娟 周升 付艳超 韦习成 |
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| 作者单位： | 上海大学,材料科学与工程学院,上海,200072 |
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| 基金项目： | 国家自然科学基金项目（50675128、50975166） |
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| 摘 要： | 采用ANSYS/LS-DYNA软件对SUS 304奥氏体不锈钢薄板的摩擦耦合变形过程进行了数值模拟.采用隐式-显式序列求解法和分段线性塑性材料模型,分析了钢带摩擦耦合变形时的应力分布规律及载荷、下压量和滑动速度等因素对钢带剪应力、主应力及等效应力的影响.结果表明:摩擦耦合变形的试验参数显著影响钢带的应力分布,验证了钢带在低于其屈服强度的应力条件下发生塑性变形的摩擦诱发效应.对奥氏体不锈钢摩擦诱发马氏体转变行为的研究及其摩擦学性能的改善具有一定的指导意义.
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| 关 键 词： | 摩擦耦合变形 数值模拟 隐式-显式序列求解法 应力分布 |
Stress Analysis of SUS 304 Austenitic Stainless Steel under Condition of Friction Coupling with Deformation Based on FEM |
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| WU Chan-juan,ZHOU Sheng,FU Yan-chao and WEI Xi-cheng.Stress Analysis of SUS 304 Austenitic Stainless Steel under Condition of Friction Coupling with Deformation Based on FEM[J].Tribology,2010,30(6):596-600. |
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| Authors: | WU Chan-juan ZHOU Sheng FU Yan-chao and WEI Xi-cheng |
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| Institution: | School of Materials Science and Engineering, Shanghai University, Shanghai 200072, China;School of Materials Science and Engineering, Shanghai University, Shanghai 200072, China;School of Materials Science and Engineering, Shanghai University, Shanghai 200072, China;School of Materials Science and Engineering, Shanghai University, Shanghai 200072, China |
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| Abstract: | The process of sliding friction coupling with deformation of SUS 304 austenitic stainless steel strip against DC 53 tool steel was simulated by the ANSYS/LS-DYNA FEM software in the present paper. The Implicit-Explicit Sequence Solution and the Standard Piecewise Linear material model were applied. The stress distribution in the strip under the condition of coupling friction with deformation was calculated. The influence of load, dropping distance of sliding block and sliding friction velocity on principle stress, shear stress and equivalent stress were analyzed. The results showed that the test parameters of sliding friction coupling with deformation significantly affected the stress distribution in the strip, testified the fact of friction-induced plastic deformation occurred as load stress was less than yield strength of the steel. This research is beneficial for guiding the study of friction-induced martensitic transformation behavior and the improvement of tribological properties of austenitic stainless steel. |
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| Keywords: | friction coupling with deformation FEM numerical simulation implicit-explicit sequence solution stress distribution |
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