Prediction of Creep Rupture Unidirectional Composite (Creep Rupture Model with Interfacial Debonding Around Broken Fibers)

摘要

This paper describes a creep rupture model considering the interfacial debonding in broken fibers in unidirectional polymer matrix composites reinforced by glass fibers. Interfacial debonding is accompanied by fiber breaks under the tensile loading depending on the fiber stress at the moment a fiber breaks and the property of interfacial adhesion. The interfacial debonding length, fiber strength and an interfacial shear stress are investigated by the fragmentation test.