Abstract
An investigation into the micromechanics of a plain weave lamina subjected to compressive loading is presented. Three dimensional finite elements, embodying a realistic description of the spatial variation of the material properties and yarn geometry, are used to model a repetitive portion of the plain weave fabric. A detailed examination of the internal stresses and strains is carried out. Possible mechanisms causing intra-yarn and inter-yarn failure are described. It is shown that geometric nonlinear effects alone are not significant in the compression response of plain weaves, but in conjunction with material nonlinearity precipitate failure. The reduction in strength due to the inclusion of material nonlinearity of the matrix surrounding the yarns is found to be substantial.
Get full access to this article
View all access options for this article.