TY - BOOK AU - Zhou,X.-F. AU - Wagner,H.D. TI - Fragmentation of two-fiber hybrid microcomposites: stress concentration factors and interfacial adhesion KW - POLYMER-MATRIX COMPOSITES KW - DEBONDING KW - FRAGMENTATION KW - INTERFACE KW - STRESS CONCENTRATIONS N2 - Stress concentration profiles resulting from the progressive fragmentation of a single fiber, and fiber/polymer interfacial adhesion, were assessed by testing a two-fiber hybrid microcomposite. The specimen consisted of a highly pre-stressed E-glass fiber and a lightly stressed Kevlar fiber, embedded in an epoxy film. The large pre-stress ensured saturation of the fragmentation process in the glass fiber. The interfacial adhesion was quantified by an energy balance approach as well as by a conventional stress balance (Kelly±Tyson)scheme. The stress concentration profiles induced in the Kevlar fiber by breaks in the nearby E-glass fiber were measured by micro-Raman spectroscopy, using several interfiber distances. The experimental results were compared with an extension of our earlier theoretical scheme for the stress concentration factor profile. # 2000 Elsevier Science Ltd. All rights reserved UR - https://drive.google.com/file/d/1HPaUgkIMgE7pTUPrvEYGXCMDjuphEdn_/view?usp=drivesdk ER -