Time Variant Reliability Analysis Using Bivariate Diffusive Crack Growth Models

by J. Nienstedt, Univ of Innsbruck, Austria,
A. Tsurui, Univ of Innsbruck, Austria,
H. Tanaka, Univ of Innsbruck, Austria,
G. I. Schuëller, Univ of Innsbruck, Austria,

Document Type: Proceeding Paper

Part of: Probabilistic Methods in Civil Engineering

Abstract: This paper is concerned with the development of a time-dependent reliability concept. The time variant load carrying capacity, i.e., resistance, of a structure caused by fatigue is expressed by a bivariate diffusive crack growth model. This model allows one to consider different failure criteria. Furthermore, a sensitivity study is performed to indicate the influence of the statistical characteristics of the various variables involved on the reliability of a structure.

Subject Headings: Failure analysis | Cracking | Structural analysis | Load bearing capacity | Material failures | Time dependence | Load factors

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