机织复合材料, 有限元分析, 成形模拟, 双球型模具, 非正交本构模型

The paper presented a fully continuum mechanics-based approach for stamping simulation of textile fiber reinforced composites by using finite element (FE) method. A non-orthogonal constitutive model was used to represent the anisotropic mechanical behavior of textile composites under large shear deformation during stamping. Simulation was performed on a balanced plain weave composite over a benchmark double dome device. A user material subroutine UMAT for the woven composite was developed for commercial FE package ABAQUS/Standard to implement the algorithm. The main advantage of this approach lies in its ease execution whilst computationally effective. Simulation results show good agreement with experimental output in terms of a number of parameters selected for comparison.

textile composite, finite element analysis, forming simulation, double dome, non-orthogonal constitutive model