This study proposes a simple micro-structural modeling to predict mechanical characteristics of 2-D strengthened plain woven fabric (PWF) composites based on the three-dimensional strand architectures. To represent the shapes of two orthogonal interlacing yarns in the PWF composites, the geometrical parameters and surface equations are introduced to the unit cell system of 2-D strengthened PWFs. Through a homogenization, the equivalent elastic matrix of PWF unit cells is calculated and also the equivalent moduli of 2-D strengthened PWFs are estimated. In order to validate the 2-D strengthened PWF model, the result comparisons between our model and other models is performed, and the results of new modeling show an excellent agreement with other analyses extracted from the literature. In addition, this study addresses the ultimate strengths of 2-D strengthened PWFs subjected to tensile-, compressive- and shear-loads. To predict the ultimate strengths, a simple user material subroutine (UMAT) model in ABAQUS is implemented. The predicted ultimate strengths are shown to be a close agreement with the results of available previous papers.
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