EXPERIMENTAL STUDY OF DAMAGE ZONE AROUND CRACK-TIP FOR CALL HYBRID COMPOSITES

The mechanical behavior in damage zones around crack-tips for carbon fiber aluminium laminates (CALL) hybrid composites was studied by moue interferometry.The strain distributions in the zones around the double-edge crack-tips for longitudinal and transversal specimens were obtained under the tensile loading.The morphology of damaged sections was observed by use of scanning electron microscope and the damage characteristics were analysed for these specimens.