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Ю.И. Димитриенко, Ю.В. Шпакова, И.О. Богданов, С.В. Сборщиков
14
Моdeling the process of multilevel liquid binder filtration
in a textile composite manufactured by RTM technology
© Yu.I. Dimitrienko, Yu.V. Shpakova,
I.O. Bogdanov, S.V. Sborschikov
Bauman Moscow State Technical University, Moscow, 105005, Russia
The article considers the mathematical model of a multilevel filtration process of liquid
binder in a textile composite material manufactured by RTM technology. The model de-
scribes filtration process on the two structural levels: the macroscopic motion of the liq-
uid binder on the frame of the composite structure and the motion of the binder within the
individual cell of textile composite periodicity on a microscopic level.
Both three-
dimensional filtration problems are solved numerically using the finite element method.
The presented results of numerical modeling the filtration process of the liquid binder in
a textile material revealed characteristic features of the binder motion
.
The developed
model of multilevel filtration may serve as a basis for the optimization of technological
processes of manufacturing structural elements made of composite materials using the
RTM technology.
Keywords:
composites, multilevel filtration process, RTM method, asymptotic averaging
method, periodicity cell, textile composite, finite element method, numerical simulation,
pore pressure.
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