| 7075铝合金厚板淬火残余应力的数值模拟 |
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| 引用本文： | 李涛.7075铝合金厚板淬火残余应力的数值模拟[J].科学技术与工程,2010,10(27). |
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| 作者姓名： | 李涛 |
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| 作者单位： | 1. 中南大学机电学院,长沙,410083;长沙航空职业技术学院机械系,长沙,410124
2. 中南大学机电学院,长沙,410083 |
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| 基金项目： | 国家重点基础研究发展规划项目973项目 |
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| 摘 要： | 利用ABAQUS有限元软件,首先针对铝合金试件的淬火过程建立了数学模型,进行热传导分析,根据所求得的瞬态温度场修正该瞬时的材料弹塑性性质.在分析瞬态应力场时,导入已生成的温度场,从而实现准耦合模拟.在此基础上分析了板材内外部的温度变化情况及热应力分布情况.
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| 关 键 词： | 有限元 仿真 温度场 热应力 |
| 收稿时间： | 6/19/2010 7:17:06 PM |
| 修稿时间： | 7/1/2010 7:19:57 PM |
Numerical analysis of residual stress fields in quenching 7075 aluminum alloy thick plates |
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| litao.Numerical analysis of residual stress fields in quenching 7075 aluminum alloy thick plates[J].Science Technology and Engineering,2010,10(27). |
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| Authors: | litao |
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| Institution: | LI Tao1,2,WU Yun-xin1(College of Mechanical and Electric Engineering,Central South University1,Changsha 410083,P.R.China,Department of Mechanical Engineering,Changsha Aeronautical Vocational and Technical College2,Changsha 410124,P.R.China) |
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| Abstract: | A mathematical model of quenching process for 7075 aluminum model was simulated by ABAQUS-a powerful FEA, carrying out analysis of thermal conduction, according to analysis of transient temperature field to revise the elastic-plastic properties of materials. Read in the transient temperature field generated when analyzing the transient stress field, thus realize accurate coupling simulation. On the basis of the sheet internal temperature changes in the plate and the thermal stress distribution. |
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| Keywords: | finite element emulation temperature field thermal stress |
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