Triaxial Woven Fabric (TWF) Composites with Open Holes (Part II): Verification of the Finite Element Models

Abstract

An elaborate finite element formulation was developed for the triaxial woven fabric (TWF) composites and this is presented in a parallel publication [Zhao, Q. and Hoa, S.V. Triaxial Woven Fabric (TWF) Composites With Open Holes (Part I): Finite Element Models For Analysis, Accepted, Journal of Composite Materials, this same issue.]. This paper presents examples using the finite elements developed and experimental work to obtain results for comparison purposes. One example deals with the TWF specimens subjected to loading along an axial yarn direction. The other example deals with other TWF specimens subjected to loading transverse to the axial yarn direction. Effects of the width and length of the sample are examined. Noncontact laser extensometer method is used for the deformation measurement. The significance and meaning of the results are discussed.