Abstract
Composite laminates which made in such a way that elastic axes of consisting layer sheets may be equiangular had been proved to be in-plane isotropic. In this paper the experimental isotropy is ascertained by uniaxial tension tests on 4-ply sheet but not for 2-ply sheet. Composite laminate speciments are consisted of the plastic coated fabric. Glass fiber and matrix are used NITTOBO woven fabric WF230-100N, RIGOLAC of RIKEN POLYESTER RESIN respectively.
