FATIGUE CRACK PROPAGAION UNDER MIXED MODE LOADING

被引：0
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作者：
曹桂馨
琚定一
机构：
[1] East China Institute of Chemical Technology
[2] Shanghai
[3] Department of Mechanical Engineering
来源：
Applied Mathematics and Mechanics(English Edition) | 1984年 / 02期
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摘要：
Mixed model fatigue crack propagation is analyzed in this paper, using a centre cracked plate geometry, loaded under uniaxial cyclic tension. Based on maximum principal stress criterion, a modified Paris expression of fatigue crack growth rate is derived in terms of ΔΚ and crack angle βfor an inclined crack. It is also shown that it is more convenient to express the Paris equation by means of crack length projected on the x- axis, arather than the actual length, a itself. The crack trajectory due to cyclic loading is predicted. βis varied from 29°to 90°. Experimental data on Type L3 aluminium agree fairly well with predicted values when βexceeds 30°.
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页码：1209 / 1219
页数：11
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