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Nanoscience and Technology: An International Journal
ESCI SJR: 0.219 SNIP: 0.484 CiteScore™: 0.37

ISSN Druckformat: 2572-4258
ISSN Online: 2572-4266

Nanoscience and Technology: An International Journal

Formerly Known as Nanomechanics Science and Technology: An International Journal

DOI: 10.1615/NanomechanicsSciTechnolIntJ.v5.i3.70
pages 229-238

MODELING OF FIBER WHISKERIZATION IMPACT ON THE RESIDUAL STRESS−STRAIN STATE OF LAYERED COMPOSITES

A. V. Afanasiev
Moscow Aviation Institute (National Research University), 4 Volokolamskoe Highway, Moscow, 125993, Russian Federation
D. Q. Nguen
Moscow Aviation Institute (National Research University), 4 Volokolamskoe Shosse, Moscow, 125993, Russia
Yury O. Solyaev
Institute of Applied Mechanics, Russian Academy of Sciences, 7 Leningradskii Ave., Moscow, 125040, Russia; Moscow Aviation Institute, 4 Volokolamskoe Highway, Moscow, 125933, Russia
A. A. Dudchenko
Moscow Aviation Institute (National Research University), 4 Volokolamskoe Shosse, Moscow, 125993, Russia

ABSTRAKT

A methodology for determining residual stresses and strains in flat polymer composite panels reinforced by nanomodified whiskered fibers is suggested. In order to calculate the effective properties of the whiskered monolayer, an approach based on the model of multilayered cylindrical inclusion is used. The properties of the interfacial whiskered area are determined by the model of elliptical inclusions with chaotic orientation. The residual stresses in the panels are determined by a classical thermoelasticity model for layered composites. As an example, we consider a problem of residual stresses and strains in a carbon fiber-reinforced plastic panel reinforced by whiskered fibers with carbon nanotubes grown on its surfaces. The computations conducted show a practical possibility for eliminating the residual stress and strain in the material with different variants of reinforcement. It is also shown that the model suggested can be used to predict different whiskerization parameters that allow reducing anisotropy of the thermal expansion coefficients in composites.


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