| 撞击损伤过程的有限元分析 |
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| 引用本文： | 宋亚新 沙德松. 撞击损伤过程的有限元分析[J]. 同济大学学报(自然科学版), 1998, 26(3): 255-259 |
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| 作者姓名： | 宋亚新 沙德松 |
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| 作者单位： | 同济大学结构理论研究所!上海，200092，大连理工大学力学系!大连，116023 |
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| 基金项目： | 高等学校博士学科点专项科研基金 |
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| 摘 要： | 运用连续介质损伤力学理论．在接触-冲击问题中引入由Lemaitre提出的一个各向同性韧性损伤模型，通过有限元法来计算、反映接触-冲击过程中材料性能的劣化程度和进程，并以有限单元间的分离来模拟诸如“穿甲”等一类包含材料破碎的接触-冲击过程．为在接触-冲击问题中考虑损伤的影响，提供了一般的方法．
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| 关 键 词： | 连续介质损伤力学 接触-冲击 有限元法 |
Finite Elements Analysis on Impact- damage Procedure |
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| Song Yaxin. Finite Elements Analysis on Impact- damage Procedure[J]. Journal of Tongji University(Natural Science), 1998, 26(3): 255-259 |
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| Authors: | Song Yaxin |
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| Abstract: | The theory of Continuous Damage Mechanics (CDM) is applied to contract - impat Problems in this paper. By using the Lemaitre's model of isotropic ductile damage and finite elemend methods, the deterioration of material's property occurred in contact - impact procedure is computed, and the emergence of cracks in such contact - impact procedure as piercing is simulated by separating the elements connected with each other originally. This paper presents a general method to consider the effects of during the contact - impact procedure. |
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| Keywords: | Continuous damage mechanics Contact -impact Finite element methods |
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