Finite element simulation of PVC coated biaxial warp knitted fabric under biaxial loads

For gaining new insight into the force being exerted on PVC coated biaxial warp knitted fabric precracked under biaxial loads and providing theoretical reference for assessing and predicting the property of materials,finite element analysis method was used to simulate the precracked tearing behaviour of PVC coated biaxial warp knitted fabrics under biaxial tensile loads.The tearing behaviour of models,in particular by evaluation of the influence of crack length and direction under biaxial tensile loads is simulated.The stress and contour plots of the model were calculated.The results show that the maximal equivalent stress increases with the initial crack length.Whatever the initial crack orientation is,the stress concentration is existed at the crack tips. It is found that there is a good match on the laws between the simulated models and experimental results.