Rigidities of One-Dimensional Laminates of Composite Materials

Abstract

This note derives systematically the expressions of the stiffnesses and rigidities of one-dimensional laminates. Various forms are obtained as a result of different assumptions introduced. Each form is applicable only when the assumptions are reasonably satisfied. While a complete account on this is not available, misleading applications can be found in the literature. It is the purpose of this note to bring a complete understanding of the problem so that different forms of the rigidities of one-dimensional laminates can be used correctly according to the practical service conditions of the components.