| BT20钛合金筒形件真空热胀形过程热力耦合有限元分析 |
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| 引用本文： | 王明伟,张立文,原思宇,戚琳,张凡云,李辰辉.BT20钛合金筒形件真空热胀形过程热力耦合有限元分析[J].塑性工程学报,2007,14(2):109-113. |
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| 作者姓名： | 王明伟 张立文 原思宇 戚琳 张凡云 李辰辉 |
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| 作者单位： | 1. 大连理工大学,三束材料改性国家重点实验室/材料学院,大连,116024
2. 沈阳黎明航空发动机集团公司,沈阳,110043 |
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| 摘 要： | 建立了BT20钛合金筒形件真空热胀形的二维非线性准静态热弹塑性有限元模型。该模型考虑了辐射传热和材料热物性非线性等因素的影响。使用有限元软件MSC．Marc对BT20钛合金筒形件真空热胀形过程进行数值模拟,计算了BT20钛合金筒形件真空热胀形过程的温度场、变形场和应力场,并进行了相应的实验验证。数值模拟结果与实验结果吻合较好,说明了所建立的热力耦合模型的有效性。
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| 关 键 词： | BT20钛合金 真空热胀形 热力耦合 数值模拟 |
| 文章编号： | 1007-2012（2007）02-0109-05 |
| 收稿时间： | 2006-01-13 |
| 修稿时间： | 2006-03-25 |
Coupled thermo-mechanical FEM analysis of the vacuum hot bulge forming of BT20 Titanium alloy cylindrical workpiece |
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| WANG Ming-wei,ZHANG Li-wen,YUAN Si-yu,Qi Lin,ZHANG Fan-yun,LI Chen-hui.Coupled thermo-mechanical FEM analysis of the vacuum hot bulge forming of BT20 Titanium alloy cylindrical workpiece[J].Journal of Plasticity Engineering,2007,14(2):109-113. |
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| Authors: | WANG Ming-wei ZHANG Li-wen YUAN Si-yu Qi Lin ZHANG Fan-yun LI Chen-hui |
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| Affiliation: | 1State Key Laboratory for Materials Modification by Laser, Ion and Electron Beams/School of Material Science and Engineering, Dalian University of Technology, Dalian 116024 China;2Shenyang Liming Aero-Engine Group Corporation, Shenyang 110043 China |
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| Abstract: | A 2-D nonlinear quasi-static thermo-mechanical coupled finite element model was developed. Effects of non-linear factors, such as thermal radiation and temperature-dependent thermal and mechanical properties of materials etc. were considered in the model. Numerical simulation of the vacuum hot bulge forming of BT20 Titanium alloy was carried out using the finite element software MSC. Marc. The temperature field, deformation field and stress field of vacuum hot bulge forming of BT20 Titanium alloy were calculated using the model. The corresponding experiment was carried out. The simulated results were in the good agreement with the experimental results, which showed the validity of the present thermo-mechanical coupled model. |
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| Keywords: | BT20 Titanium alloy vacuum hot bulge forming thermo-mechanical coupling numerical simulation |
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