| 引用本文: | 刘甫,任钧国,周建平.粘弹性界面裂纹相似界面单元聚缩解.[J].国防科技大学学报,2005,27(4):28-31.[点击复制] |
| LIU Fu,REN Junguo,ZHOU Jianping.The Condensation Method with Similar Shape Element for the Solution of Viscoelastic Interface Crack[J].Journal of National University of Defense Technology,2005,27(4):28-31[点击复制] |
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| 粘弹性界面裂纹相似界面单元聚缩解 |
| 刘甫, 任钧国, 周建平 |
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(国防科技大学 航天与材料工程学院，湖南 长沙 410073)
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| 摘要: |
| 提出了粘弹性界面裂纹分析的相似界面单元聚缩解法。该方法在裂纹尖端附近划分相似界面单元，多层相似单元形成一个子结构；然后利用相似界面单元具有类似刚度矩阵的特点，将子结构内的大量自由度聚缩后再求解。作为算例，求解了双粘弹性材料和弹—粘弹性材料矩形板单边裂纹的拉伸问题。 |
| 关键词: 界面元 粘弹性 相似单元 聚缩 |
| DOI： |
| 投稿日期：2004-12-25 |
| 基金项目:国家杰出青年科学基金资助项目(19925209) |
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| The Condensation Method with Similar Shape Element for the Solution of Viscoelastic Interface Crack |
| LIU Fu, REN Junguo, ZHOU Jianping |
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(College of Aerospace and Materials Engineering, National Univ. of Defense Technology, Changsha 410073, China)
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| Abstract: |
| The condensation method for the analysis of viscoelastic interface crack with similar shape element is put forward. By this method, similar shape elements are generated near the crack tip, forming a substructure with a large number of similar shape elements. And then the large number of freedom degrees in substructure is condensed out. Identity of stiffness matrix between the similar shape elements is used fully during the process of condensation, The tension of bi-viscoelastic and elastic-viscoelastic material rectangle plate with the single edge crack is solved to illustrate the use of this method. |
| Keywords: interface element viscoelastic similar shape element condensation |
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