非对称Ⅲ型裂纹表面受运动载荷的动态扩展问题

吕念春; 程云虹; 李新刚; 程靳

非对称Ⅲ型裂纹表面受运动载荷的动态扩展问题

1.
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: 中国博士后基金资助项目(2005038199);黑龙江省自然科学基金重点资助项目(ZJG04-08)

详细信息

作者简介:
吕念春(1965- ),男,辽宁朝阳人,副教授,博士(联系人.Tel:+86-451-86414970;E-mail:lnc_65@163.com).

中图分类号: O346.1
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- 文章访问数: 2931
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- 被引次数: 0
出版历程
- 收稿日期: 2008-05-15
- 修回日期: 2008-09-16
- 刊出日期: 2008-10-15

Dynamic Propagation Problems Concerning the Surfaces of Asymmetrical Mode Ⅲ Crack Subjected to Moving Loads

1.
School of Material Science and Engineering, Shenyang Ligong University, Shenyang 110168, P. R. China;

摘要

摘要: 通过复变函数论的方法，对非对称Ⅲ型裂纹表面受运动载荷的动态扩展问题进行了研究．采用自相似函数的方法可以获得解析解的一般表达式．应用该法可以迅速地将所讨论的问题转化为Riemann-Hilbert问题,并求得了非对称扩展裂纹表面分别受到常数运动载荷、阶跃运动载荷作用下的应力、位移和动态应力强度因子解析解．利用这些解并采用叠加原理，就可以求得任意复杂问题的解．
- 复变函数 /
- 非对称Ⅲ型裂纹 /
- 动态扩展 /
- 自相似函数 /
- 解析解
Abstract: By the measures of the theory of complex functions,dynamic propagation problems concerning the surfaces of asymmetrical mode Ⅲ crack subjected to moving loads were investigated.General representations of analytical solutions were obtained by the approaches of self-similar functions. The problems dealt with can be facilely transformed into Riemann-Hilbert problems by this technique, and analytical solutions of the stress,the displacement and dynamic stress intensity factor under the action of constant moving loads and unit-step moving loads situated at the surfaces of asymmetrical extension crack,respectively,are acquired.By application of those solutions gained and superposition principle,the solutions of discretionarily intricate problems can be attained.
- complex functions /
- asymmetrical mode Ⅲ crack /
- dynamic propagation /
- self-similar function /
- analytical solutions

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参考文献(40)

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非对称Ⅲ型裂纹表面受运动载荷的动态扩展问题

作者简介:
吕念春(1965- ),男,辽宁朝阳人,副教授,博士(联系人.Tel:+86-451-86414970;E-mail:lnc_65@163.com).

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Dynamic Propagation Problems Concerning the Surfaces of Asymmetrical Mode Ⅲ Crack Subjected to Moving Loads

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留言板

非对称Ⅲ型裂纹表面受运动载荷的动态扩展问题

作者简介: 吕念春(1965- ),男,辽宁朝阳人,副教授,博士(联系人.Tel:+86-451-86414970;E-mail:lnc_65@163.com).

计量

出版历程

Dynamic Propagation Problems Concerning the Surfaces of Asymmetrical Mode Ⅲ Crack Subjected to Moving Loads

计量

出版历程

目录

作者简介:
吕念春(1965- ),男,辽宁朝阳人,副教授,博士(联系人.Tel:+86-451-86414970;E-mail:lnc_65@163.com).