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In the axial tensile failure process of intraply hybrid composites,the breakage of some fibersmay lead to interfacial damage,thus directly influencing the local stress concentrations near the sites ofbreakage.A modified shear-lag model,in which the interfacial damage is considered,is pruposed.Based onthe model,the influence of interfacial shear strength on the stress concentrations and the lengths of interfacialdamage,zone is first studied.The present results also provide an important theoretical basis for investigatingthe failure mechanism and hybrid effects for such kind of composites.
In the axial tensile failure process of intraply hybrid composites, the breakage of some fibersmay lead to interfacial damage, thereby directly influencing the local stress concentrations near the sites ofbreak. A modified shear-lag model, in which the interfacial damage is considered, is pruposed . Based on the model, the influence of interfacial shear strength on the stress concentrations and the lengths of interfacialdamage, zone is first studied. Present results also provide an important theoretical basis for investigating the failure mechanism and hybrid effects for such kind of composites.