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| 基于各向异性弹塑性损伤模型的钣材单向拉伸模拟 | |
| 引用本文： | 郑莹,董湘怀,李志刚,黄玉盈. 基于各向异性弹塑性损伤模型的钣材单向拉伸模拟[J]. 中国机械工程, 2004, 15(18): 1680-1682 |
| 作者姓名： | 郑莹 董湘怀 李志刚 黄玉盈 |
| 作者单位： | 1. 华中科技大学塑性成形模拟及模具技术国家重点实验室,武汉,430074 2. 上海交通大学模具CAD国家工程研究中心,上海,200030 3. 华中科技大学力学系,武汉,430074 |
| 基金项目： | 国家自然科学基金资助项目 (5 0 0 0 5 0 0 8,5 0 2 75 0 5 9)，塑性成形模拟及模具技术国家重点实验室开放课题基金资助项目(0 0 -1) |
| 摘 要： | 采用基于损伤能量等效性假设的损伤演化模型，结合弹塑性损伤耦合分析的本构积分算法，建立了各向异性弹塑性损伤的有限元分析模型，研究开发了可用于板壳变形分析的厚向异性弹塑性损伤本构计算程序，对金属材料弹塑性损伤进行了数值分析研究。对于复杂的弹塑性损伤本构模型计算，通过将损伤演化模型拟合成带有微小初值的幂函数形式，对钣料单向拉伸试验进行计算，较好地模拟出了材料的应力一应变关系曲线。 |
| 关 键 词： | 各向异性 弹塑性损伤 本构关系 单向拉伸 |
| 文章编号： | 1004-132X(2004)18-1680-03 |
Simulation of Uniaxial Tension of Sheet Metal by Anisotropic Elastoplastic Damage Model |
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| Zheng Ying Dong Xianghuai Li Zhigang Huang Yuying .Huazhong University of Science and Technology,Wuhan. Simulation of Uniaxial Tension of Sheet Metal by Anisotropic Elastoplastic Damage Model[J]. China Mechanical Engineering, 2004, 15(18): 1680-1682 | |
| Authors: | Zheng Ying Dong Xianghuai Li Zhigang Huang Yuying .Huazhong University of Science Technology Wuhan |
| Affiliation: | Zheng Ying 1 Dong Xianghuai 2 Li Zhigang 1 Huang Yuying 1 1.Huazhong University of Science and Technology,Wuhan,430074 2.Shanghai Jiaotong University,Shanghai,200030 |
| Abstract: | The damage evolution model based on the hypothesis of damage energy equivalence, and a fully coupled elastoplastic damage integration scheme were applied,and a finite element analysis for anisotropic elastoplastic damage model was described. The program was developed and applied to numerically analyze the elastoplastic damage phenomena of metal. A power law with small initial value describing the damage evolution was adopted in the computation of elastoplastic damage constitutive equation. |
| Keywords: | anisotropy elastoplastic damage constitutive equation uniaxial tension |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |