Experimental Investigation on the Shear Properties and Failure Mechanism of 3D MWK Glass/Epoxy Composites under Compressive Loading

摘要: This paper reports the effects of temperature and fiber architecture on shear properties failure mechanism 3D MWK composites under compressive loading at room elevated temperatures. The experiments with three architectures were performed five different Macro-fracture SEM micrographs examined to understand deformation mechanism. results show that stress-strain curves non-linearity plastic fracture feature, exhibit platform has significant which decrease significantly increasing due degradation matrix properties, especially after 75 oC. can be affected greatly by these increase 45 o direction also damage patterns vary temperature. At temperature, interfacial adhesion between fibers is high, local delaminating feature are prominent. temperatures, become more softened, cracked attain plasticity. cracking, interface debonding, layer change significantly.