DELTA-K-EFFECTIVE - WHICH FORMULA

被引：16

作者：

FINNEY, JM

DEIRMENDJIAN, G

机构：

[1] DSTO Aeronautical Research Laboratory, Fishemens Bend, Victoria, 3207

[2] School of Mechanical & Manufacturing Engineering, University of New South Wales

来源：

FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES | 1992年 / 15卷 / 02期

关键词：

D O I：

10.1111/j.1460-2695.1992.tb00045.x

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

Several equations are examined which were developed to eliminate the R-effect in fatigue crack growth rate by using the concept of a DELTA-K(eff). Their performance was objectively rated by using a limited set of growth rate data with the result that an early equation by Schijve proved the best. However, relatively small variations in growth rates markedly affected the order of rating the equations, and none of them appear to include the variables necessary to cope with a wide range of R-values and growth rates. The usefulness of an effective DELTA-K in predicting fatigue crack growth is thus brought into question.

引用

页码：151 / 158

页数：8

共 15 条

[1]

Clark W.G., Hudak S.J., Variability in fatigue crack growth rate testing, JTEV A, 3, pp. 454-476, (1975)

[2]

Elber W., The significance of fatigue crack closure, pp. 230-242, (1971)

[3]

Schijve J., The stress ratio effect on fatigue crack growth in 2024‐T3 alclad and the relation to crack closure, (1979)

[4]

Hardrath H.F., Newman J.C., Elber W., Poe C.C., (1978)

[5]

Ewalds H.L., (1976)

[6]

Schijve J., Some formulas for the crack opening stress level, (1980)

[7]

Van der Linden H.H., (1979)

[8]

De Koning A.U., Van der Linden H.H., (1981)

[9]

Ibrahim F.K., The effects of stress ratio, compressive peak stPess and maximum stress level on fatigue behaviour of 2024–T3 aluminium alloy, Fatigue Fract. Engng Mater. Struct., 12, pp. 9-18, (1989)

[10]

Finney J.M., Modelling for fatigue crack growth prediction in aircraft, Fatigue Fract. Engng Mater. Struct., 8, pp. 205-222, (1985)

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