| 奇异积分方程在裂纹板条动态断裂分析中的应用(I) |
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| 引用本文： | 袁杰红,唐国金,周建平.奇异积分方程在裂纹板条动态断裂分析中的应用(I)[J].国防科技大学学报,1999,21(3):9-12. |
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| 作者姓名： | 袁杰红 唐国金 周建平 |
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| 作者单位： | 国防科技大学航天技术系 |
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| 摘 要： | 利用积分变换方法，将含Ｇｒｉｆｉｔｈ裂纹的无限长板条问题转化为Ｌａｐｌａｃｅ变换域中一Ｃａｕｃｈｙ型奇异积分方程。通过求解奇异积分方程和对裂纹尖端场的渐近分析，获得了Ｌａｐｌａｃｅ变换域中的动态应力强度因子。
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| 关 键 词： | 动态断裂，板条，Grifith裂纹，积分变换，奇异积分方程，应力强度因子 |
| 收稿时间： | 1998/10/12 0:00:00 |
The Application of Singular Integral Equation to the Dynamic Fracture Analysis of Cracked Strip (I) |
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| Yuan Jiehong,Tang Guojin and Zhou Jianping.The Application of Singular Integral Equation to the Dynamic Fracture Analysis of Cracked Strip (I)[J].Journal of National University of Defense Technology,1999,21(3):9-12. |
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| Authors: | Yuan Jiehong Tang Guojin and Zhou Jianping |
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| Institution: | Department of Aerospace Technology, NUDT, Changsha, 410073;Department of Aerospace Technology, NUDT, Changsha, 410073;Department of Aerospace Technology, NUDT, Changsha, 410073 |
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| Abstract: | By using the integral transform method, the problem of an infinitely long elastic strip with a Griffith crack is converted into a Cauchy type singular integral equation in Laplace transform domain. By solving the singular integral quation and analyzing the asymptotic behavior of the crack tip field, the dynamic stress intensity factor in Laplace transform domain is gotten. |
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| Keywords: | dynamic fracture strip Griffith crack integral transform singular integral equation stress intensity factor |
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