Modeling of Damage in Composite Materials Submitted to Off Axis Tests: Application to a Ceramic Woven Fabric SiC-SiC Composite

Woven fabric composites show a damage behavior which can be compared to that of cross-ply laminates concerning transverse cracking. The particularity of woven fabric composites is to have two networks of cracks oriented by the weft and the warp threads. The originality of this paper is to propose a vectorial approach with two damage variables instead of a tensorial one to model the behavior of woven fabric composites. A meso-macro approach is applied. A comparison of numerical simulations and off axis tests leads to an assessment of the accuracy of the proposed modeling methodology.