一方向連続炭素繊維強化ナイロン6切欠き材の破壊機構とAE特性

概要

論文の詳細を見る
The fracture behavor during tensile tess on unidirectional flawed samples of corbon-reinforced nylon 6 at angles of 0°,45°and 90°between fiber and loading direction has been studied with simulataneous AE monitoring. it was observed that the direction of crackpropagation was along fiber/matrix interface in each case of 0°,45°and 90° samples. For on-axis loading, the fracture energy was large, the crack propagated rapidly, and the fracture surface was smooth, while for off-axis loading these were contrary. Furthermore, the fiber/matrix debonding, which is the main failure mode in unidirectional materials, has been investigated in detail from the results of AE parameters, crack propagating behavior and SEM observation. An obvous difference was found in AE amplitude as well as in the distribution of power spectra between on-axis and off-axis loadings.
社団法人日本材料学会の論文
1993-06-15