An Experimental Study on Graze and Crack Growth Behavior of Polycarbonate

In this study, the J-Integral value was determined by using the caustics method. The diameter of the caustics is measured experimentally by using the CT specimens. The specimen used here is a polycarbonate specimen with different ligament lengths. The craze zone of the crack tip was determined using photoelasticity and the method of caustics. The correlation between the craze extension and the crack growth behavior is investigated by observing the craze patterns occuring in the vicinity of the crack tip.