In the current work, finite element modelling has been used to predict progressive failure of open-hole woven glass fiber-reinforced polyester composite laminates, under tensile loading. This has been done with the aid of multicontinuum theory, in order to extract constituents' stress and strain components. The model was first validated using previously published experimental results for open-hole composite laminates. After that, the effects of fiber orientation on the laminate mechanical behavior have been examined by modelling two cases; cross-ply and angle-ply laminates. In addition, a model without a central hole has been built for both fiber orientations, in order to evaluate the effects of the central hole on overall stiffness and load carrying capacity. The results were explained in terms of local stress state and agreed with previously published experimental results. |
