| 材料参数及静水压力对超塑性胀形影响的数值模拟 |
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| 引用本文： | 陈积伟,胡平,连建设.材料参数及静水压力对超塑性胀形影响的数值模拟[J].材料研究学报,1992,6(3):204-208. |
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| 作者姓名： | 陈积伟 胡平 连建设 |
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| 作者单位： | 吉林工业大学
(陈积伟，胡平)，吉林工业大学(连建设) |
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| 基金项目： | 国家自然科学基金,5880382 |
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| 摘 要： | 本文将含有变形损伤的本构关系引入刚粘塑性有限元程序,用于超塑性胀形的数值分析,讨论了应变速率敏感性,孔洞长大及静水压对极限成形应变的影响,并与文献发表的实验结果进行了比较。
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| 关 键 词： | 超塑性 刚塑性 有限元 孔洞 液压胀形 |
| 收稿时间： | 1992-06-25 |
| 修稿时间： | 1992-06-25 |
NUMERICAL SIMULATION OF THE EFFECTS OF MATERIAL PARAMETERS AND HYDROSTATIC PRESSURE ON SUPERPLASTIC BULGING |
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| CHEN Jiwei,HU Ping,LIAN Jianshe.NUMERICAL SIMULATION OF THE EFFECTS OF MATERIAL PARAMETERS AND HYDROSTATIC PRESSURE ON SUPERPLASTIC BULGING[J].Chinese Journal of Materials Research,1992,6(3):204-208. |
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| Authors: | CHEN Jiwei HU Ping LIAN Jianshe |
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| Affiliation: | Jilin University of Technology |
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| Abstract: | A constitutive relation including the effect of deformation damage has been in-troduced into the rigid-viscoplastic finite element method program,in order to simulatesuperplastic bulging process.The influences of strain rate sensitivity,cavity growth rate andsuperimposed hydrostatic pressure on limit thickness strain have been studied.Theoretically cal-culated results are in agreement with the experimental results for superplastic materials. |
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| Keywords: | superplasticity rigid-plastic FEM cavitation hydrostatic bulging |
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