A lamination model for thermostamping of carbon woven fabric reinforced thermoplastic resin composites

The thermostamping process of carbon fiber reinforced thermoplastic resin composites (CFRTP) involves large deformation, anisotropy and multi-field coupling phenomenon. In order to characterize these mechanical behaviors of CFRTP, a lamination model combining thermoplastic resin and carbon woven fabric was established based on continuum mechanics and finite element method. Compared with the hyperelastic model of woven fabric, the proposed lamination model can simulate the condition of wrinkling visually at different forming temperatures, blank holder force and fiber orientation and optimize these process parameters in the thermostamping process. The proposed model is simple, useful and easy for material parameter determination. It provides a theoretical foundation for the numerical simulation and processing optimization of CFRTP forming.