线弹性断裂力学在厚壁筒疲劳和断裂中的应用
T.G.Crymble,周则恭
摘要(Abstract)：
根据受压厚壁筒的应力强度因子关系式,可以预计受压厚壁筒的疲劳和断裂行为,使过去在高压容器上所发生的许多灾难性事故完全避免。本文的基本内容就是如何确定厚壁筒的应力强度因子关系式,及用它来估算疲劳寿命。本文还介绍了一种新的实验技术,它包括圆环试样的试验装置和简便迅速的疲劳裂纹预制方法。此外,还论证了人们感兴趣的单裂纹和多裂纹问题,指出单裂纹对裂纹起始深度非常敏感,并且不可能有“泄漏先于破坏”的断裂;而多裂纹对裂纹深度不那么敏感,在实际的韧性范围内,一定会有“泄漏先于破坏”的断裂。
关键词(KeyWords)：
基金项目(Foundation):
作者(Author):
T.G.Crymble,周则恭
参考文献(References)：
- [1] Underwood,J. M. ASTM Spec. Tech. Publ.513,1972, P. 59．
- [2] Bowie,O. L. and Freese,C. E.Engineering Fracture Mechanics, 1972, Vol. 4, p. 315．
- [3] Underwood,J. M., Lasselle, R. R., Scanlen, R.D. and Hussain, M. A. A, Tech. Report WVT-7026, 1970,watervliet Arsenal, watervliet, N. Y.
- [4] Shannon, R. W. E. and Austin, B.A. Paper C32/71, in Practical applications of fracture mechanics to Pressure vessel technology, Inst. of Mech. Engs., London, 1971．
- [5] Boyle, E. F. The calculation of elastic and elastic-plastic crack extension forces. Ph.D. Thesis, The Queen's university of Belfast, 1972．
- [6] Bowie, O.L. Jn. of Maths and Physics, April 1956, Vol. 25, P. 60．
- [7] Westmann, R. A..Jn. of Maths and Physics. July, 1964, Vol. 43, P. 191．
- [8] Kutter, M. K. Int. Jn. of Fracture Mech. 1970, Vol. 6, №3, P. 233．
- [9] Goldthorpe, B.D. Paper 17, British Steel Corporation Conference, Mechanics and Mechanisms of Crack Growth; Cambridge, 1973．