| 基于MSC．Marc的摩擦叠焊面接触问题数值模拟 |
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| 引用本文： | 陈家庆,焦向东,邱宗义,张宝生,陈忠海.基于MSC．Marc的摩擦叠焊面接触问题数值模拟[J].石油化工高等学校学报,2008,21(4):68-72,77. |
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| 作者姓名： | 陈家庆 焦向东 邱宗义 张宝生 陈忠海 |
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| 作者单位： | 北京石油化工学院海洋工程连接技术研究中心,北京,102617 |
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| 基金项目： | 国家自然科学基金
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国家高技术研究发展计划(863计划)
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北京市自然科学基金
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| 摘 要： | 选用刚性平冲头与弹性半空间的经典面接触模型为研究对象，通过解析解与MSC．Marc有限元数值模拟结果的比较，确定了偏斜网格以及3级有限元计算对已知接触区域面接触问题的可靠性。对于摩擦叠焊单元成形过程所涉及的基本弹性静力学面接触问题而言，接触面上的法向应力分布从中心向边缘以二次曲线的形式逐渐增大；金属棒直径、轴向外载荷对接触面上法向应力的分布情况影响较大，而径向间隙、不同材料组合对其的影响相对较小。
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| 关 键 词： | 面接触 有限元 摩擦液柱成形 弹性静力学 |
Numerical Simulation on the Surface-Contact Problem of Friction-Stitch-Welding Based on MSC.Marc |
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| CHEN Jia-qing,JIAO Xiang-dong,QIU Zong-yi,ZHANG Bao-sheng,CHEN Zhong-hai.Numerical Simulation on the Surface-Contact Problem of Friction-Stitch-Welding Based on MSC.Marc[J].Journal of Petrochemical Universities,2008,21(4):68-72,77. |
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| Authors: | CHEN Jia-qing JIAO Xiang-dong QIU Zong-yi ZHANG Bao-sheng CHEN Zhong-hai |
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| Affiliation: | CHEN Jia-qing,JIAO Xiang-dong,QIU Zong-yi,ZHANG Bao-sheng,CHEN Zhong-hai(Research Centre of Offshore Engineering Joining Technology,Beijing Institute of Petrochemical Technology,Beijing 102617,P.R.China) |
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| Abstract: | Taking the surface-contact model between rigid flat punch and elastic half-space as the research subject,and through comparing the results of analytical solution and numerical simulation by the finite element method(FEM) software MSC.Marc,it is determined that the non-uniform meshing method and the third grade FEM calculation are reliable as to the surface-contact problem with definite contact area.For the most fundamental surface-contact problem involved with friction hydro pillar processing in friction st... |
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| Keywords: | Surface contact Finite element method(FEM) Friction hydro pillar processing(FHPP) Elasto-static mechanics |
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