Deep drawing simulation of knitted fabric composites considering geometrical non-linearity

A new methodology in deep drawing simulation of knitted fabric composite sh eets is proposed in this paper. As large deformation is inevitable, the reo rientation of fabric geometry is taken into consideration in obtaining the stress-strain relationship. Computational readjustment of the fabric in the unit cell is done to take into consideration realignment of fabric during large deformation in the actual process. Comparison between the simulated a nd experimental results reveals reasonable agreement.