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Development and relaxation of internal stresses in granular composites with an epoxy matrix
Authors:A S Azheganov  V P Begishev  D A Gorinov  S N Lysenko  I N Shardakov
Institution:(1) Perm’ State University, Perm’, 614990;(2) Institute of Technical Chemistry, Ural Division, Russian Academy of Sciences, Perm’, 614990;(3) Institute ofMechanics of Continuous Media, Ural Division, Russian Academy of Sciences, Perm’, 614013
Abstract:The development and relaxation of stresses in epoxy matrix-filler systems were studied experimentally under isotropic thermal and baric effects. Data on the nuclear quadrupole resonance of the filler crystals were analyzed using an empirical model for the relaxation processes in the matrix of the composite material. The effective stress-relaxation time was found to depend on the temperature, external pressure, and the magnitude and type of deformations of the polymer matrix. __________ Translated from Prikladnaya Mekhanika i Tekhnicheskaya Fizika, Vol. 47, No. 4, pp. 104–114, July–August, 2006.
Keywords:relaxation  granular composites  nuclear quadrupole resonance
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