| New inverse method for identification of constitutive parameters |
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| 作者姓名： | 周计明 齐乐华 陈国定 |
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| 作者单位： | School of Mechatronic Engineering, Northwestern Polytechnical University, Xi＇an 710072, China |
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| 摘 要： | A new inverse method by coupling iSIGHT and ABAQUS was proposed to determine the constitutive parameters of Al2O3sf/LY12 composite deforming at elevated temperature. It combined the merits of the f＇mite element simulation and optimization technique. The direct model was simulated with finite element code ABAQUS. The inverse problem associated with the identification of the constitutive parameters was expressed as a least square optimization problem. The direct simulation and the parameters optimization were implemented in iSIGHT integrated environment. The aim was to match the output of the direct simulation with the experiment data. The capability of the proposed inverse method was demonstrated through the identification of constitutive parameters of Al2O3sf/LY12 composite. The proposed new inverse method is also applicable to other parameters identification which is hardly determined through experiments or direct analytical method.
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| 关 键 词： | 逆解法 铝合金 构成参数 复合材料 参数标识 iSIGHT ABAQUS |
| 收稿时间： | 2005-05-08 |
| 修稿时间： | 2005-08-16 |
New inverse method for identification of constitutive parameters |
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| Ji-ming ZHOU, Le-hua QI,Guo-ding CHEN.New inverse method for identification of constitutive parameters[J].Transactions of Nonferrous Metals Society of China,2006,16(1):148-152. |
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| Authors: | Ji-ming ZHOU Le-hua QI Guo-ding CHEN |
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| Affiliation: | School of Mechatronic Engineering, Northwestern Polytechnical University, Xi'an 710072, China |
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| Abstract: | |
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| Keywords: | Al2O3sf/LY12 composite constitutive parameters inverse method parameter identification hot deformation iSIGHT ABAQUS |
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