Elastic Behavior of Woven Fabric Composites: II—Laminate Analysis

TLDR

Two‑dimensional models are presented for the elastic analysis of plain weave fabric laminates. The authors present two‑dimensional models for elastic analysis of plain weave fabric laminates, describe a method to generate laminate configurations from lamina configurations, study how lamina arrangement affects in‑plane elastic constants, and compare the resulting moduli with those of symmetric cross‑ply laminates. An optimally shifted laminate configuration yields higher elastic properties than other configurations, and the predicted in‑plane elastic moduli of plain weave fabric laminates agree well with experimental results.

Abstract

Two-dimensional models are presented for the elastic analysis of the plain weave fabric laminates. A methodology to generate the laminate configuration from the lamina configuration is given. The effect of lamina configuration and their relative posi tions with respect to each other on the in-plane elastic constants of the woven fabric lami nates is studied. A laminate configuration with optimum shifts gives higher elastic proper ties compared to the other configurations. A comparison between in-plane elastic moduli of the unidirectionally laminated symmetric cross-ply laminates and plain weave fabric laminates is made. The in-plane elastic moduli of plain weave fabric laminates predicted by the models are found to be in good agreement with the experimental results.