Prof. habil. dr. Rimantas Barauskas
Kauno Technologijos Universitetas, Informatikos fak.
Taikomosios informatikos katedra

Multi-resolution finite element models for simulation of the ballistic impact on non-crimped composite fabric packages
Rimantas Barauskas, Aušra Abraitienė.

A multi-scale finite element model for the simulation of medium velocity ballistic impact on noncrimpedlaminated composite fabric packages has been developed in LS-DYNA. The targets are soft fabricstructures of non-crimped fibre plies bonded together by polymeric filling. The model of each fibre ply isdivided into farther and nearer to impact zones. The farther zone is a macro-level model of orthotropichomogeneous membrane, and the nearer zone is a mezzo level structure composed of narrow aramidstrips and polymeric gaskets. Shell elements are used for all the structural components of the fibre ply.The macro-level models employs the material properties determined on the base of the finite elementanalysis of the micro-cube representing a small fragment of the fibre bundle. At mezzo level the materialproperties are modified by using a mezzo-cube, which represents the narrow strip and gasket together.The convergence of the narrow strips model is demonstrated. Simultaneously with the combined macromezzolevel model of a ply two different macro-level models are investigated. Good agreement amongthe results provided by different models has been established by proper adjustment of erosion strainparameter on the base of reference results obtained at mezzo level.
PublikacijaComposite structures, 2013, vol. 104, p. 215-229
Duomenų bazėScopus; Science Citation Index Expanded (Web of Science).
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