Ю.И. Димитриенко, Е.А. Губарева, Н.Н. Федонюк, С.В. Сборщиков
16
Мodeling of elasic-dissipative properties
of laminated fibrous composites
© Yu. I. Dimitrienko
1
, E.A. Gubareva
1
,
N.N. Fedonyuk
2
, S.V. Sborschikov
1
1
Bauman Moscow State Technical University, Moscow, 105005, Russia
2
Krylov State Research Centre, ST.-Petersburg, 196158, Russia
The developed
method of calculating the elastic-dissipative characteristics of polymeric
composite materials of layered fibrous structure under steady cyclical is based on appli-
cation of the theory of asymptotic averaging of periodic structures
. We offer an algorithm
for comparing different structures of layered fiber composites in terms of the realization
of the highest values of their elastic-dissipative characteristics. It is based on the dia-
gram construction of materials in the coordinates "the real part of the complex modulus
of elasticity in the plane of laying of the fibers —
tangent of loss angle
for the same mod-
ule."
The algorithm may be used to
search for optimum reinforcement structure of lay-
ered fiber composites. Examples of numerical modeling of elastic-dissipative characteris-
tics of layered fibrous composites with two, three and four strands systems are given.
Keywords:
viscoelastic composites laminated fibrous composites, elastic-dissipative
properties, steady vibrations, tangent of loss angle, complex elastic modules, method of
asymptotic averaging
.
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