Strength analysis of unidirectional fiber reinforced composite under transverse loading with considering random field modeling of local strength and correlation with equivalent elastic property

Abstract

In this presentation, a numerical method for estimation of the apparent strength of a unidirectional fiber reinforced composite plate considering random fiber arrangement under the transverse tensile loading is introduced. One of the features of the presented method is the consideration of both random fields of the local apparent elastic modulus and local strength. Those apparent properties take the influence of the microstructure of composites, but the relationship of them has not been well established yet. From this fact, the influence of the correlation between them is investigated. At first, the outline of the problem setting and the methodology are introduced, and the correlation of them is discussed. Then, a strength analysis of a composite plate is demonstrated, and the influence of the presented issue on the multiscale stochastic analysis of composite is discussed.