ELASTIC PROPERTIES OF IMPERFECTLY BONDED SHORT-FIBER COMPOSITES

Citation
Dr. Carroll et Lr. Dharani, ELASTIC PROPERTIES OF IMPERFECTLY BONDED SHORT-FIBER COMPOSITES, Composite structures, 35(2), 1996, pp. 195-206
Citations number
16
Categorie Soggetti
Materials Sciences, Composites
Journal title
ISSN journal
02638223
Volume
35
Issue
2
Year of publication
1996
Pages
195 - 206
Database
ISI
SICI code
0263-8223(1996)35:2<195:EPOIBS>2.0.ZU;2-D
Abstract
The effect of debonding on various moduli of short fiber composites wa s studied by developing an analytical model. It was assumed that debon ding of the fiber-matrix interface initiated at the end of the fibers and progressed to the center. Debonding along only a few percent of th e fiber length substantially reduced the moduli of the composite, espe cially for relatively high-volume fractions of reinforcement. Results were compared to an existing model, in which debonding was assumed to occur in a sector around the fiber and all along the length of the fib er. It was found that debonding along the length of the fiber reduced the modulus of the composite significantly more than debonding around a sector, for the same percentage of the fiber debonded. It was not ju st the percentage of the fiber debonded which effected the moduli, but also the manner in which the debonding occurred. Copyright (C) 1996 E lsevier Science Ltd.