STRESSES IN VARIOUS COMPOSITE LAMINATES FOR GENERAL SET OF APPLIED IN-PLANE LOADS

Abstract

This paper presents numerical simulations regarding the determination of stresses in all plies of various composite laminates such as anti-symmetric, symmetric cross-ply, symmetric angle-ply and balanced angle-ply laminates for general set of in-plane loads. The basic laminate theory has been used considering that in all plies, the fibers and matrix properties, fibers content and ply thickness are same. Following input data have been used: stack of plies, fibers axis of each ply at specified angle to reference direction, axial and transverse Young’s moduli and shear modulus both for fibers and matrix, axial-transverse Poisson ratio for fibers and matrix. Output data include longitudinal, transverse and shear stresses in all plies at angles varying between 0° and 90° to reference direction.