マイクロメカニックスによる短繊維複合材料の力学的挙動の解析 : 第2報,繊維クラスタが剛性とき裂初生に及ぼす影響( 材料のミクロ・メゾ評価)

摘要: An injection-molded short-fiber compostie often contains some fiber clusters due to a poor mixing process. analytical model for composite with such is developed estimate stiffness and stresses inside just outside of composite. Firstly the cluster predicted by applying Eshelby's equivalent inclusion method cluster. Secondly overall stress are assessed two kinds inhomogeneities, i.e. fiber. Finally fiber, namely fiber-end stress, evaluated using Hill-Walpole-Mura's jump condition. It concluded from this parametric study that effective tends decrease as volume fraction increases, cracks at ends more likely occur lower applied level increases since magnitude increases. found carbon-fiber, higher reinforcement, sensitive than glass-fiber one.