| 金属成型特殊非协调大变形有限元数值模拟 |
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| 引用本文： | 陈章华,韩明芬,马晓兵.金属成型特殊非协调大变形有限元数值模拟[J].北京科技大学学报,2002,24(4):436-440. |
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| 作者姓名： | 陈章华 韩明芬 马晓兵 |
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| 作者单位： | 北京科技大学应用科学学院,北京,100083 |
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| 摘 要： | 在金属成型领域,一种较新的特殊非协调大变形有限元法,即增强假设应变有限元法(简称EASM)已被研究用于进行数值模拟.为使该方法可适用于分析压缩大变形问题,对原由Simo提出的EASM列式进行了修正并编制了用于数值模拟变形过程的增强假设应变有限元程序EAS.FOR,通过2个标准算例来验证该方法的可行性和有效性.
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| 关 键 词： | 金属塑性成型 数值模拟 增强假设应变有限元法(EASM) 非协调大变形 |
| 修稿时间： | 2001年12月12日 |
Numerical Simulation of Metal Forming Using Special Non-ConfirmingLarge Deformation FEM |
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| CHEN Zhanghua,HAN Mingfen,MA Xiaobing Applied Science School,UST Beijing,Beijing ,China.Numerical Simulation of Metal Forming Using Special Non-ConfirmingLarge Deformation FEM[J].Journal of University of Science and Technology Beijing,2002,24(4):436-440. |
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| Authors: | CHEN Zhanghua HAN Mingfen MA Xiaobing Applied Science School UST Beijing Beijing China |
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| Institution: | CHEN Zhanghua,HAN Mingfen,MA Xiaobing Applied Science School,UST Beijing,Beijing 100083,China |
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| Abstract: | In the field of metal forming, a newly special non-confirming large deformation FEM referred to as the Enhanced Assumed Strain Mode (EASM), has been developed to carry out numerical simulation. To make the EASM applicable to analyze the compress deformation problem, the EASM formulation founded by Simo has been modified in terms of reduced factor. Furthermore, this special element has been implemented into a large deformation program EAS.FOR and used to simulate the metal forming process. Two standard illustrations are given to verify the feasibility and validity of the mode. |
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| Keywords: | metal plastic forming numerical simulation the Enhanced Assumed Strain Mode (EASM) large deformation FEM |
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