A new constitutive model has been developed based on the homogenization method by considering the micrcostructure of composites including both the mechanical and structural properties of woven fabric reinforcements. The constitutive equation enables to simulate the deformation behavior of thermoplastic composites in forming processes as reported in the previous paper. In the previous formulation for the constitutive equation, the warp and weft yams over crossover were assumed to freely rotate without considering frictional behaviors. This assumption is released in this study to simulate the shear behavior of fabric reinforcements due to the frictional behavior of crossing points between the warp and the weft. A simple but effective way to add the shear resistance of woven fabrics into the constitutive model is discussed. Based on literatures, several examples were simulated for validation purposes in this study.