
Proceedings Paper
Determination of local debonding stress and investigation of its effect on mechanical properties of glass short fiber reinforced polycarbonate compositesFormat | Member Price | Non-Member Price |
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Paper Abstract
Thermoplastic polymers are often reinforced by adding short fibers to improve mechanical properties including Young's
modulus and tensile strength of the polymers. In many engineering applications, energy absorbing characteristics in such
particulate polymers is known to be a very important property to be considered in composite designs, and meanwhile
debonding at the interface between fiber and matrix in the composites may affect the energy absorption properties. Here,
the focus of this study is to employ a semi-empirical approach to determine the debonding stress and investigate the
effect of the debonding stress on energy absorbing properties of short glass fiber reinforced polycarbonate composites.
Glass short fiber reinforced polycarbonate composites are fabricated via a solution mixing technique. Tensile testing and
acoustic emission measurement are simultaneously performed for the polycarbonate composites. The test results
including toughness are compared for the composites over neat polycarbonate. Also the local debonding stress in the
vicinity of each glass fiber in composites is estimated by combining modeling and experiments. A finite element model
is developed to determine local debonding stress at the interface between the fiber and matrix. The local debonding
stress appears to considerably affect the toughness of the composites.
Paper Details
Date Published: 28 March 2012
PDF: 7 pages
Proc. SPIE 8342, Behavior and Mechanics of Multifunctional Materials and Composites 2012, 83421Z (28 March 2012); doi: 10.1117/12.915448
Published in SPIE Proceedings Vol. 8342:
Behavior and Mechanics of Multifunctional Materials and Composites 2012
Nakhiah C. Goulbourne; Zoubeida Ounaies, Editor(s)
PDF: 7 pages
Proc. SPIE 8342, Behavior and Mechanics of Multifunctional Materials and Composites 2012, 83421Z (28 March 2012); doi: 10.1117/12.915448
Show Author Affiliations
Jonghwan Suhr, Univ. of Delaware (United States)
Published in SPIE Proceedings Vol. 8342:
Behavior and Mechanics of Multifunctional Materials and Composites 2012
Nakhiah C. Goulbourne; Zoubeida Ounaies, Editor(s)
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