ISSN:
1460-2695
Source:
Blackwell Publishing Journal Backfiles 1879-2005
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
The leak-before-break(LBB) behaviour of a structural component under high fatigue stress, low-cycle fatigue conditions is an important problem in nuclear power plants, liquid nitrogen gas tankers and chemical plants. This paper is an experimental study to clarify the crack shape at penetration, crack opening behaviour after penetration and the LBB condition for plate specimens and pipe specimens. The fatigue load which realizes the LBB condition, PFLBB' is based on a net-stress criterion. It is found that PFLBB is dependent only on the initial crack length a0. Furthermore, it is shown that the crack opening displacement V at the centre of a penetrated crack can be derived using the gross stress, σG' and the front surface crack length, as' together with the back surface crack length, ab.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1111/j.1460-2695.1992.tb00058.x
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