[1]乐金朝,包旭,王复明..板条共线裂纹问题的超奇异积分方程方法[J].郑州大学学报(工学版),2001,22(02):16-19.[doi:10.3969/j.issn.1671-6833.2001.02.005]
　Lejin Dynasty,Bao Xu,Wang Fuming.A super-singular integral equation method for the slat-collinear crack problem[J].Journal of Zhengzhou University (Engineering Science),2001,22(02):16-19.[doi:10.3969/j.issn.1671-6833.2001.02.005]
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板条共线裂纹问题的超奇异积分方程方法()
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《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:
22卷
期数:
2001年02期
页码:
16-19
栏目:
出版日期:
1900-01-01

文章信息/Info

Title:
A super-singular integral equation method for the slat-collinear crack problem
作者:
乐金朝; 包旭; 王复明.
郑州工业大学水利与环境工程学院,, 郑州工业大学水利与环境工程学院,, 郑州工业大学水利与环境工程学院,
Author(s):
Lejin Dynasty; Bao Xu; Wang Fuming
关键词:
超奇异积分方程;  应力强度因子;  无限板条
Keywords:
DOI:
10.3969/j.issn.1671-6833.2001.02.005
文献标志码:
A
摘要:
结构工程中频繁使用板条构件,对于板条构件疲劳破坏的研究大多局限于实验方法,而从断裂力学的角度进行理论分析的为数不多.针对这种情况,采用积分变换,对平面无限板条中对称共线内裂纹问题进行了研究,根据混合边界条件,在有限部积分的意义下将问题归结为以裂纹表面的位错为未知函数的超奇异积分方程,并建立了相应的数值计算方法,给出了应力强度因子的计算公式.最后通过数值算例的计算分析了裂纹之间的相互影响.
Abstract:
Slatted components are frequently used in structural engineering, and most of the research on fatigue failure of slats is limited to experimental methods, while few are theoretically analyzed from the perspective of fracture mechanics. In view of this situation, the problem of symmetric collinear cracks in planar infinite slats is studied by integral transformation, and according to the mixed boundary conditions, the problem is reduced to a super-singular integral equation with the dislocation of the crack surface as an unknown function in the sense of finite integral, and the corresponding numerical calculation method is established, and the calculation formula of stress intensity factor is given. Finally, the mutual influence between cracks is analyzed by numerical example.

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更新日期/Last Update: 1900-01-01