Ю.И. Димитриенко, И.Д. Димитриенко
20
Simulation of dynamic deformation processes
in flexible textile composites
Yu.I. Dimitrienko I.D. Dimitrienko
Bauman Moscow State Technical University, Moscow, 105005, Russia
A mathematical model of deforming flexible composites based on aramid fabrics under
shock-wave influences is proposed. The model takes into account the deformation char-
acteristic distinctions of this class of composite materials: the ability to deform without
destruction at finite deformations, a significant dissimilarity of deformation patterns un-
der tension and compression, the dependence of these patterns on the loading rate, the
presence of pseudoplastic material properties caused by pulling the filaments from the
fabric and others. Statement of the problem of flexible armor material dynamic defor-
mation has been defined. The adaptive banded grid method has been applied for its deci-
sion in a two-dimensional formulation. An example of the numerical solution of the prob-
lem of high-speed impact of the hammer on the flexible armor material is given. Some
specific effects of this class material deformation are analyzed.
Key words
: dynamic processes, flexible textile composites, numerical simulation, destruc-
tion, armor materials.
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