Fatigue of welded steel joints under wideband loadings

被引：15

作者：

Sarkani, S ^{[1
]}

Michaelov, G ^{[1
]}

Kihl, DP ^{[1
]}

Beach, JE ^{[1
]}

机构：

[1] CDNSWC,STRUCT INTEGR GRP,BETHESDA,MD 20084

来源：

PROBABILISTIC ENGINEERING MECHANICS | 1996年 / 11卷 / 04期

关键词：

D O I：

10.1016/0266-8920(96)00017-3

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

Fatigue tests were conducted on high-strength welded steel cruciform-shaped specimens subjected to random loadings to investigate the effects of loading intensity, nonnormality and frequency bandwidth on the rate of fatigue damage accumulation. Test results are compared with predictions made using the Rayleigh approximation and rainflow analysis in terms of cycles and times to failure. Results indicate that nonnormality can significantly increase the rate of fatigue damage accumulation and result in nonconservative fatigue life estimates if its effect is not accounted for properly. Likewise, frequency content was also found to influence the rate of fatigue damage accumulation, but to a lesser extent than nonnormality. Copyright (C) Elsevier Science Ltd.

引用

页码：221 / 227

页数：7

共 8 条

[1] SIMPLE RAINFLOW COUNTING ALGORITHMS [J].

DOWNING, SD ;

SOCIE, DF .

INTERNATIONAL JOURNAL OF FATIGUE, 1982, 4 (01) :31-40

[2]

HOOPER G, 1990, P S INT OFFSH STRUCT, P105

[3] NONNORMAL DESCRIPTIONS OF MORISON-TYPE WAVE-FORCES [J].

HU, SLJ ;

LUTES, LD .

JOURNAL OF ENGINEERING MECHANICS-ASCE, 1987, 113 (02) :196-209

[4]

HU SLJ, 1989, P 8 INT C OMAE HAG, P199

[5]

KUNY JA, 1992, THESIS G WASHINGTON

[6] STOCHASTIC FATIGUE DAMAGE ACCUMULATION [J].

LUTES, LD ;

CORAZAO, M ;

HU, SLJ ;

ZIMMERMAN, J .

JOURNAL OF STRUCTURAL ENGINEERING-ASCE, 1984, 110 (11) :2585-2601

[7]

MINER MA, 1945, J APPL MECH-T ASME, V12, pA159

[8]

Palmgren A., 1924, VDI Z, V68, P339

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