Numerical simulation and experimental study of trapezoidal tear of triaxial woven fabric

Abstract

The tear damage of triaxial woven fabric (TWF) are investigated by numerical simulation method and experiment method to study the tear properties of samples with pre-cut in different directions. It is analysed that the changing law of tear load and the characteristics of tear failure during tear process. The results indicate that the tear load-displacement curve can be divided into low modulus region, high modulus region and shock region, which are related to initial stage, pre-cut opening stage and tear opening expansion stage the tear process of TWF. When the pre-cut is parallel to the yarn, samples have higher tear load and larger tear starting position.