The effect of temperature on the behavior of the interphase in polymeric composites

摘要: Abstract The single-filament fragmentation method for measuring the fiber/matrix stress transfer was used identification of interphase perturbations. This technique is based on measurement fiber length resulting from multiple fracture a single embedded in resin specimen during tensile loading. A series single-fiber experiments conducted over wide range temperatures AS4-carbon-fiber/Epon-828/PACM20-epoxy-resin system. Critical aspect ratios, magnitude which considered to be inversely proportional square root matrix modulus, showed significant increase ambient elevated temperatures, at temperature levels much lower than glass transition point bulk matrix. consistent with existence an three-concentric-cylinder elastic model employed correlated effect material properties.