Transverse Moduli Effect on Dilatation and Through-Thickness Poisson’s Ratio of Composite Laminates

In this paper, an investigation of the effect from the transverse elastic moduli of the lamina on the through-thickness Poisson’s ratio and the dilatation for a general class of randomly-oriented composite laminate is presented. A dimensionless mathematical model has been used to study the influence of the various transverse elastic moduli E2 and E3 of lamina on the through-thickness Poisson’s ratio and the dilatation of the laminate. The results from the analysis of this dimensionless mathematical model will provide a set of general guidelines for designing the value of through-thickness Poisson’s ratio and the dilatation of the composite laminates to meet various requirements in engineering application.