Interfacial Shear Strength Evaluation using Fiber Bundle Pull-Out Method

摘要

In order to evaluate the interfacial shear strength between fiber bundle and matrix, a fiber bundle pull-out test is proposed. Shear stress distribution was calculated based on the parabolic shear-lag analysis. Fiber bundle pull-out tests were conducted to evaluate the effects of molding condition on the interfacial shear strength of jute/poly(lactic acid) composites. Interfacial shear strength increased with increasing molding temperature up to 185℃. Then gradual decrease in interfacial shear strength with molding temperature was observed. Similar tendency was also observed in the effect of molding time. Comparing the result of tensile tests in the previous study, interfacial shear strength has a corelation with tensile strength.