Technical gazette, Vol. 27 No. 1, 2020.
Original scientific paper
https://doi.org/10.17559/TV-20170224190939
The Non-Linear Sandwich Structure Model for Low-Velocity Impact
Tomáš Mandys*
orcid.org/0000-0001-7187-028X
; NTIS – New Technologies for Information Society, Faculty of Applied Sciences, University of West Bohemia, Univerzitní 8, 306 14 Pilsen, Czech Republic
Tomáš Kroupa
; NTIS – New Technologies for Information Society, Faculty of Applied Sciences, University of West Bohemia, Univerzitní 8, 306 14 Pilsen, Czech Republic
Vladislav Laš
; NTIS – New Technologies for Information Society, Faculty of Applied Sciences, University of West Bohemia, Univerzitní 8, 306 14 Pilsen, Czech Republic
Abstract
This article is focused on progressive failure analysis of sandwich structure subjected to transverse low-velocity impact loading. A user defined material model considering non-linear behaviour of the composite skin of the sandwich structure was implemented into commercial software Abaqus by means of material subroutine VUMAT. The experimental measurements of transverse low-velocity impact were performed using an in-house drop tester machine. The results of numerical simulations and experimental data for the sandwich plate deflections at three selected points and the contact force-time dependency during the impact event were compared for particular impact velocities. The occurrence of material damage was visually inspected and compared too.
Keywords
fibreglass textile composite; foam core; low-velocity impact; numerical modelling; sandwich structure
Hrčak ID:
234078
URI
Publication date:
15.2.2020.
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