Effect of temperature on characterization of pull-out tests for Nylon 6 fiber-epoxy resin composites.

概要

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This paper presents the effects of temperature on the results of the single fiber pull-out test for Nylon 6 in epoxy resin. The maxiumum tensile stress versus embedment length curves for the pull-out tests consist of two regions. Temperature dependence of interfacial yield shear stress obtained from the first slope for the region of shorter embedment length can be explained mainly by the temperature dependence of thermal stress produced by the difference in thermal expansion coefficient between fiber and resin. The interfacial frictional force obtained from the second slope for the longer region is smaller at double figures than the above interfacial yield shear stress and agrees approximately with the frictional force estimated from the debonding process. This interfacial frictional force plays an important role in determining the fracture energy of the composite system.
公益社団法人高分子学会の論文