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| 复合材料非对称动态扩展裂纹的模型 | |
| 引用本文： | 吕念春,程云虹,李新刚,程靳. 复合材料非对称动态扩展裂纹的模型[J]. 哈尔滨工业大学学报, 2007, 39(1): 14-19 |
| 作者姓名： | 吕念春 程云虹 李新刚 程靳 |
| 作者单位： | 1. 哈尔滨工业大学,航天工程与力学系,哈尔滨,150001;沈阳理工大学,材料科学与工程学院,沈阳,110168 2. 东北大学,土木工程系,沈阳,110006 3. 哈尔滨工业大学,航天工程与力学系,哈尔滨,150001 |
| 基金项目： | 中国博士后科学基金 , 黑龙江省自然科学基金 |
| 摘 要： | 采用复变函数论的方法,对复合材料的非对称动态扩展裂纹问题进行研究.建立复合材料一种非对称动态扩展裂纹的模型.采用自相似函数的方法对坐标原点受到脉冲载荷、增加载荷Pt作用下的动态问题分别进行研究,获得了应力、位移和应力强度因子的解析解. |
| 关 键 词： | 复合材料 裂纹 动态模型 解析解 |
| 文章编号： | 0367-6234(2007)01-0014-06 |
| 修稿时间： | 2005-03-08 |
A model of an asymmetrically dynamic propagation crack of composite materials |
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| LU Nian-chun,CHENG Yun-hong,LI Xin-gang,CHENG Jin. A model of an asymmetrically dynamic propagation crack of composite materials[J]. Journal of Harbin Institute of Technology, 2007, 39(1): 14-19 | |
| Authors: | LU Nian-chun CHENG Yun-hong LI Xin-gang CHENG Jin |
| Affiliation: | 1. Dept. of Astronautics and Mechanics, Harbin Institute of Technology, Harbin 150001, China2. Dept. of Civil Engineering, Northeastern University, Shenyang 110006, China; 3. School of Material Science and Engineering, Shenyang Ligong University, Shenyang 110168, China |
| Abstract: | By the theory of complex functions,asymmetrically dynamic propagation crack problems concerning composite materials are researched.A model of an asymmetrically dynamic propagation crack is established.The dynamic problems under the action of pulse loads and increasing loads P_t located at the origin of the coordinates respectively,are studied,and analytical solution on stresses,displacements and stress intensity factors is obtained. |
| Keywords: | composite materials crack dynamic model analytical solution |
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