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30th Structures, Structural Dynamics and Materials Conference
An analysis is presented of the suitability of the method of equivalent linearization for estimating the fatigue life of a nonlinear structure. Comparisons are performed of the fatigue life of a nonlinear plate as predicted using conventional equivalent linearization and three other more accurate methods. The excitation of the plate is assumed to be Gaussian white noise and the plate response is modeled using a single resonant mode. The methods used for comparison consist of numericaldoi:10.2514/6.1989-1355 fatcat:yjszvcdhobhgtlatsuszc7gnua