Non-linear random vibration of filamentary composites

Abstract

The method of equivalent linearization in conjunction with finite element modeling is used to perform non-linear random vibration analysis of filamentary composite plates loaded in extension. An approximate representation of the non-linear shear stress-strain law in terms of a power series results in a tractable formulation that is sufficiently accurate for practical purposes. The solution is performed iteratively, using linear random vibration analysis during each iteration. Techniques for parallelizing the computations are briefly discussed.