| Gleeble热机械模拟试验中焦耳效应的数值模拟和试验验证 |
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| 引用本文： | 李昕,Guénaёl GERMAIN,Anne MOREL,王浩伟.Gleeble热机械模拟试验中焦耳效应的数值模拟和试验验证[J].理化检验(物理分册),2012(5):285-289. |
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| 作者姓名： | 李昕 Guénaёl GERMAIN Anne MOREL 王浩伟 |
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| 作者单位： | 上海交通大学材料科学与工程学院;法国巴黎高科国立高等工程技术学校昂热实验室 |
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| 摘 要： | 为了提高Gleeble动态试验数值模拟的精度，考虑焦耳效应所产生的温度场，利用Abaqus建立了帽型试样热电耦合的有限元模拟。使用简化的长方体试样进行Abaqus有限元模拟和相同参数条件下的Gleeble试验，其结果基本一致，表明该模拟可以相当预测焦耳效应的温度场分布情况。模拟帽型试样在Gleeble试验机上的加热过程，获得了动态试验开始时试样内部的温度分布，其结果可作为应力分析阶段的定义温度场。此外，特别扩展分析了Gleeble验证试验中材料相变温度的测定。
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| 关 键 词： | Abaqus软件 数值模拟 焦耳效应 Gleeble热模拟试验机 帽型试样 |
Numerical Simulation and Experimental Verification of Joule Effect in Gleeble Thermo-mechanical Simulating Tests |
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| LI Xin,Guénaёl GERMAIN,Anne MOREL,WANG Hao-wei.Numerical Simulation and Experimental Verification of Joule Effect in Gleeble Thermo-mechanical Simulating Tests[J].Physical Testing and Chemical Analysis Part A:Physical Testing,2012(5):285-289. |
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| Authors: | LI Xin Guénaёl GERMAIN Anne MOREL WANG Hao-wei |
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| Affiliation: | 1(1.School of Materials Science and Engineering,Shanghai Jiaotong University,Shanghai 200240,China; 2.Laboratoire Arts et Métiers ParisTech d’Angers,Angers 49035,France) |
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| Abstract: | In order to refine the numerical simulation of dynamic tests through considering the Joule effect,a model of thermal-electric coupling for hat-shaped specimen was constructed with Abaqus.Modeling in Abaqus was verified using a simplified rectangular sample by comparison with results from experimental test performed on a Gleeble machine.The heating step of a hat-shaped specimen was simulated for the temperature distribution,which can be used as predefined temperature field of mechanical step.In addition,an extended analysis was specially focused on the use of validation tests on the Gleeble,which allows to predict the phase transition temperature. |
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| Keywords: | Abaqus software numerical simulation Joule effect Gleeble thermal mechanical simulator hat-shaped specimen |
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