The effect of fatigue-induced crack propagation on the stochastic dynamics of a nonlinear structure

被引：3

作者：

Gaidai, O. ^{[1
]}

Naess, A. ^{[1
,2
]}

Sobczyk, K. ^{[3
]}

机构：

[1] Norwegian Univ Sci & Technol, Ctr Ships & Ocean Struct, N-7034 Trondheim, Norway

[2] Norwegian Univ Sci & Technol, Dept Math Sci, N-7034 Trondheim, Norway

[3] Polish Acad Sci, Inst Fundamental Technol Res, Warsaw, Poland

来源：

PROBABILISTIC ENGINEERING MECHANICS | 2008年 / 23卷 / 04期

关键词：

Stochastic dynamics; Reliability; Stiffness degradation; Fatigue crack; Path integration;

D O I：

10.1016/j.probengmech.2007.10.012

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

Reliability design of various structures such as ships, offshore platforms, aircrafts, buildings is incomplete without considering fatigue-induced crack propagation effects that may lead to system failure. In order to carry out dynamic analysis of such systems, one needs an appropriate dynamic model along with a tool for statistical analysis of the crack propagation. This paper aims to contribute to the ongoing research of stochastic dynamics coupled with simultaneous degradation of the system properties, especially stiffness degradation, caused by cracks in structural elements. The latter issue is important for structural safety. (C) 2008 Elsevier Ltd. All rights reserved.

引用

页码：438 / 443

页数：6

共 8 条

[1] Vibration of cracked structures: A state of the art review [J].

Dimarogonas, AD .

ENGINEERING FRACTURE MECHANICS, 1996, 55 (05) :831-857

[2]

EUGENE W, 1985, STOCHASTIC PROCESSES

[3] RELIABILITY OF DEGRADING DYNAMIC-SYSTEMS [J].

GRIGORIU, M .

STRUCTURAL SAFETY, 1990, 8 (1-4) :345-351

[4]

Lemaitre J, 1994, MECH SOLID MAT

[5]

Lin Y.K., 1995, PROBABILISTIC STRUCT

[6] Efficient path integration methods for nonlinear dynamic systems [J].

Naess, A ;

Moe, V .

PROBABILISTIC ENGINEERING MECHANICS, 2000, 15 (02) :221-231

[7]

NAESS A, 1993, PROBALISTIC ENG MECH, V8, P91, DOI [DOI 10.1016/0266-8920(93)90003-E, 10.1016/0266-8920(93)90003-E]

[8] Stochastic dynamics with fatigue-induced stiffness degradation [J].

Sobczyk, K ;

Trebicki, J .

PROBABILISTIC ENGINEERING MECHANICS, 2000, 15 (01) :91-99

← 1 →