Axial Force-Moment Interaction in System Reliability

by James J. Zimmerman, Johns Hopkins, Baltimore, United States,
Ross B. Corotis, Johns Hopkins, Baltimore, United States,
J. Hugh Ellis, Johns Hopkins, Baltimore, United States,

Document Type: Proceeding Paper

Part of: Mechanics Computing in 1990's and Beyond

Abstract: For rigid-plastic structures with random resistances and loads, a technique is presented that identifies critical failure modes considering the effect of axial force-moment interaction on the formation of yield hinges. Identification of critical modes is achieved by solution of a nonlinear mathematical program. A cyclic procedure is presented to select those modes which contribute significantly to the estimate of the system probability of failure.

Subject Headings: Failure modes | Failure analysis | System reliability | Structural reliability | Plasticity | Load and resistance factor design | Axial loads

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