期刊
ENGINEERING FAILURE ANALYSIS
卷 12, 期 1, 页码 99-128出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.engfailanal.2004.04.002
关键词
fatigue crack growth; crack growth; load history; aircraft structures; joint failures
This paper examines the fatigue crack growth histories of a range of test specimens and service loaded components and concludes that in all cases, the crack growth shows, as a first approximation a linear relationship between the log of the crack length or depth and the service history (number of cycles). These cracks have grown from; semi- and quarter elliptical surface cuts, holes, pits and inherent material discontinuities in test specimens, fuselage lap joints, welded butt joints, and complex tubular jointed specimens and include cracks grown under uniaxial and biaxial loading. The implications of this exponential growth are discussed. (C) 2004 Elsevier Ltd. All rights reserved.
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