| 用有限元多晶体弹塑性模型预测FCC金属冲压变形后的织构和塑性各向异性 |
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| 引用本文： | 苏世忠,李明哲,李东平,高桥宽. 用有限元多晶体弹塑性模型预测FCC金属冲压变形后的织构和塑性各向异性[J]. 金属学报, 2001, 37(5): 531-536 |
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| 作者姓名： | 苏世忠 李明哲 李东平 高桥宽 |
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| 作者单位： | 吉林大学辊锻工艺研究所,长春,130025;日本国山形大学机械工学科,米泽992,日本 |
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| 基金项目： | 国家教委跨世纪人才基金资助项目1998－5 |
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| 摘 要： | 开发出一套适于FCC(面心立方)金属的三维弹塑性有限元程序FEPM-3DFCC，该程序将与应变速率无关的多晶体弹塑性模型引入到立方体单元晶粒塑性应变增量的计算中．文中以Al板为例用FEPM-3DFCC程序计算出常温下单向拉伸和压缩、双向压缩、平面应变、面内剪切和厚向剪切等六种典型受力状态下的织构演变和各向异性变化，并对Al圆管扭曲与拉伸复合加载和Al圆管冷径缩挤拔加工进行了数值模拟．
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| 关 键 词： | 有限元 多晶体模型 面心立方金属 冲压 织构 各向异性 |
| 文章编号： | 0412-1961(2001)05-0531-06 |
| 修稿时间： | 2000-09-26 |
PREDICTION OF PLASTIC ANISOTROPY AND TEXTURE IN FCC METAL BY FINITE ELEMENT POLYCRYSTAL MODEL |
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| SU Shizhong,LI Mingzhe,LI Dongping Rolling Forging Institute,Jilin University,Changchun TAKAHASHI Hiroshi. PREDICTION OF PLASTIC ANISOTROPY AND TEXTURE IN FCC METAL BY FINITE ELEMENT POLYCRYSTAL MODEL[J]. Acta Metallurgica Sinica, 2001, 37(5): 531-536 |
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| Authors: | SU Shizhong LI Mingzhe LI Dongping Rolling Forging Institute Jilin University Changchun TAKAHASHI Hiroshi |
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| Affiliation: | SU Shizhong,LI Mingzhe,LI Dongping Rolling Forging Institute,Jilin University,Changchun 130025 TAKAHASHI Hiroshi Department of Mechanical Science Engineering,Yamagata University,Yonezawa 992,Japan |
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| Abstract: | A 3-D elastic-plastic finite element method for FCC metal (FEPM-3DFCC) was developed which induced a rate independent polycrystal model to calculate plastic strain. The paper investigated the texture evolution and non-uniformity in plastic anisotropies of aluminum sheet under six typical stress states, such as uniaxial tension and compress, biaxial compress, plain strain,torsion and shear. At last the paper dealts with the numerical simulation of torsion-tension deforming and extrusion process of aluminum tube using the FEPM-3DFCC. |
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| Keywords: | finite element polycrystal model FCC metal forging texture plastic anisotropy |
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