Influence of stacking angle of carbon fibers on fracture behavior of TiNi fiber impregnated CFRP composites

摘要: TiNi/CFRP composites have been fabricated by hot-pressing at a temperature of 180 °C. The CFRP layers were stacked with the carbon fibers angles 0°, 30°, 60° or 90° relative to tensile direction. fracture behavior was studied using notched specimens, which act as one-dimensional AE sources during testing, determine mode composites. Detection strong Lamb waves shows that in 0° stacking configuration is mostly due fiber breakage, accounts for high strength this configuration. In contrast, specimens mainly fail matrix cracking, production weak waves, resulting lower strengths.