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Composites: Mechanics, Computations, Applications: An International Journal
ESCI SJR: 0.354 SNIP: 0.655 CiteScore™: 1.2

ISSN Imprimer: 2152-2057
ISSN En ligne: 2152-2073

Composites: Mechanics, Computations, Applications: An International Journal

DOI: 10.1615/CompMechComputApplIntJ.v4.i2.40
pages 139-150

DETERMINATION OF THE DYNAMIC MECHANICAL PROPERTIES OF LOW-MODULUS VISCOELASTIC COMPOSITES AT THE BIHARMONIC LAW OF LOADING

A. S. Yankin
Perm National Research Polytechnic University, Perm, Russia
S. V. Slovikov
Perm National Research Polytechnic University, Perm, Russia
R. V. Bulbovich
Perm National Research Polytechnic University, Perm, Russia

RÉSUMÉ

Four series of biharmonic experiments on cylindrical samples of circular cross section were carried out. The method of determining the dynamic mechanical properties of low-modulus viscoelastic composites at the biharmonic law of loading is described. The method is used to process experimental data. As a result, graphs of the phase shear angles (PSA) between stresses and deformations of high-frequency harmonic vs. the values of deformations of low-frequency harmonic were obtained, as well as the graphs of the dynamic elasticity modulus (DEM) of high-frequency harmonic vs. the values of deformations of low-frequency harmonic at different values of the low-frequency harmonic frequencies. A comparison of the dynamic mechanical properties at the biharmonic law of loading with the results of a quasi-stationary dynamical experiment is carried out.

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