ISSN:
0887-6266
Keywords:
stress distribution calculated for model composites, fiber/matrix interfacial effects in
;
fiber reinforced composites, stress distributions in
;
composites, finite element analysis of stresses in
;
Chemistry
;
Polymer and Materials Science
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
,
Physics
Notes:
Finite-element analysis, in conjunction with a spectroscopic mechanical method, has been applied in a study of stress distribution in fiber reinforced model composites. In this study, special emphasis was devoted to an understanding of variation of stress distribution with changing fiber/matrix interfacial properties. Experimental studies were focused on the effects of coating properties of an anisotropic polydiacetylene fiber in an epoxy matrix. Stress transfer efficiency and stress distribution curves were shown to be clearly dependent on the nature and thickness of the interface, although the effects of a thin coating are limited. Lower stress transfer efficiency, even failure, was observed for thicker coatings. Calculated results, utilizing the finite element method for model composites, agree qualitatively well with experimental data. A detailed description of possible failure modes for the discontinuous fiber composites has been developed from these finite-element calculations.
Additional Material:
12 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/polb.1992.090300613
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