各向异性材料动态裂纹扩展特性和动态应力强度因子

高鑫; 王汉功; 康兴无

各向异性材料动态裂纹扩展特性和动态应力强度因子

西安高技术研究所501室,西安灞桥 710025

详细信息

作者简介:
高鑫(1981- ),男,安徽颍上人,博士(联系人.Tel/Fax:+86-29-84741699;E-mail:gx_10164@yahoo.com.cn).

中图分类号: O346
计量
- 文章访问数: 3246
- HTML全文浏览量: 161
- PDF下载量: 730
- 被引次数: 0
出版历程
- 收稿日期: 2008-05-12
- 修回日期: 2008-08-08
- 刊出日期: 2008-09-15

Dynamic Stress Intensity Factor and Dynamic Crack Propagation Characteristics of Anisotropic Material

501 Section of Xi'an High-Tech Institute, Xi'an 710025, P. R. China

摘要

摘要: 基于各向异性材料力学，研究了无限大各向异性材料中Ⅲ型裂纹的动态扩展问题．裂纹尖端的应力和位移被表示为解析函数的形式，解析函数可以表达为幂级数的形式，幂级数的系数由边界条件确定．确定了Ⅲ型裂纹的动态应力强度因子的表达式，得到了裂纹尖端的应力分量、应变分量和位移分量．裂纹扩展特性由裂纹扩展速度M和参数alpha反映，裂纹扩展越快，裂纹尖端的应力分量和位移分量越大；参数alpha对裂纹尖端的应力分量和位移分量有重要影响．
- 动态 /
- 应力强度因子 /
- 裂纹扩展 /
- 各向异性
Abstract: Based on mechanics of anisotropic material, the dynamic propagation problem of mode Ⅲ crack in an infinite anisotropic body is investigated. The stresses and displacements around the crack tip were expressed as analytical complex function, which can be represented in power series. The constant coefficients of the series are determined by boundary conditions. The expression of dynamic stress intensity factors for mode Ⅲ crack was obtained, and the dynamic stress components, strain components and dynamic displacement components around the crack tip were derived. The crack propagation characteristics were represented with mechanical properties of anisotropic material, crack speeds M and parameters alpha. The faster the crack velocity, the greater the maximum of stress components and dynamic displacement components around crack tip. The parameters alpha particularly affect the stress components and dynamic displacement components around crack tip.
- dynamic /
- stress intensity factor /
- crack propagation /
- anisotropy

HTML全文

参考文献(13)

[1]	Mott N F. Fracture of metals:theoretical considerations[J].Engineering,1948,165(4275):16-18.
[2]	Yoffe E H. The moving Griffith crack[J].Philosophical Magazine,1951,42(330):739-750.
[3]	Chen E P. Sudden appearance of a crack in a stretched finite strip[J].Journal of Applied Mechanics,1978,45(2):270-280.
[4]	Baker B R. Dynamic stresses created by a moving crack[J].Journal of Applied Mechanics,1962,29(4):449-458. doi: 10.1115/1.3640588
[5]	Freund L B. Dynamic crack propagation[J].The Mechanics of Fracture, ASME,1976,19(1):105-134.
[6]	Kassir M K, Tse S. Moving Griffith crack in an orthotropic material[J].Internation Journal of Engineering Science,1983,21(4):315-325. doi: 10.1016/0020-7225(83)90116-7
[7]	Arcisz M, Sih G C. Effect of orthotropy on crack propagation[J].Theoretical and Applied Fracture Mechanics,1984,1(3):225-238. doi: 10.1016/0167-8442(84)90003-X
[8]	Achenbach J D, Bazant Z P. Elastodynamic near-tip stress and displacement fields for rapidly propagating crack in orthotropic materials[J].Journal of Applied Mechanics,1975,42(75):183-189. doi: 10.1115/1.3423513
[9]	Piva A, Viola E. Crack propagation in an orthotropic medium[J].Engineering Fracture Mechanics,1988,29(5):535-548. doi: 10.1016/0013-7944(88)90179-8
[10]	Viola E, Piva A, Radi E. Crack propagation in an orthotropic medium under general loading[J].Engineering Fracture Mechanics,1989,34(5/6):1155-1174. doi: 10.1016/0013-7944(89)90277-4
[11]	Lee Kwang-Ho, Hawong Jai-Sug, Choi Sun-Ho. Dynamic stress intensity factors and dynamic crack propagation characteristics of orthotropic material[J].Engineering Fracture Mechanics,1996,53(1):119-140. doi: 10.1016/0013-7944(95)00077-9
[12]	胥红敏, 姚学锋, 冯西桥. 裂纹稳态扩展下正交异性材料的动应力强度因子KⅢ解答[J].工程力学,2006,23(10):68-72.
[13]	杨维阳, 李俊林, 张雪霞. 复合材料断裂复变方法[M].北京:科学出版社, 2005,55-56.

施引文献

资源附件(0)

访问统计

计量

文章访问数: 3246
HTML全文浏览量: 161
PDF下载量: 730
被引次数: 0

姓名
邮箱
手机号码
标题
留言内容
验证码

留言板

各向异性材料动态裂纹扩展特性和动态应力强度因子

作者简介:
高鑫(1981- ),男,安徽颍上人,博士(联系人.Tel/Fax:+86-29-84741699;E-mail:gx_10164@yahoo.com.cn).

计量

Dynamic Stress Intensity Factor and Dynamic Crack Propagation Characteristics of Anisotropic Material

计量

目录

留言板

各向异性材料动态裂纹扩展特性和动态应力强度因子

作者简介: 高鑫(1981- ),男,安徽颍上人,博士(联系人.Tel/Fax:+86-29-84741699;E-mail:gx_10164@yahoo.com.cn).

计量

出版历程

Dynamic Stress Intensity Factor and Dynamic Crack Propagation Characteristics of Anisotropic Material

计量

出版历程

目录

作者简介:
高鑫(1981- ),男,安徽颍上人,博士(联系人.Tel/Fax:+86-29-84741699;E-mail:gx_10164@yahoo.com.cn).