Reliability of Redundant Structures Under Time Varying Loads

by H. -C. Chen, Univ of Illinois at Urbana-Champaign, United States,
Y. K. Wen, Univ of Illinois at Urbana-Champaign, United States,

Document Type: Proceeding Paper

Part of: Structural Safety and Reliability


Time-variant system reliability methods under Poisson pulse load processes are presented. Direct simulations based on incremental truss analyses are also performed. Small displacement assumption is made such that the change in geometry is neglected. Numerical examples show that in the time-variant system reliability analysis one needs to consider the loading time history, e.g., occurrence, intensity fluctuation, and coincidence in outcrossing rate evaluation as well as in identifying important failure mechanisms.

Subject Headings: Structural reliability | Load factors | Failure analysis | System reliability | System analysis | Displacement (mechanics) | Geometrics | Trusses

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