RT journal article
T1 High-velocity impact on composite sandwich structures: A theoretical model
A1 Alonso, L.
A1 Solís Fajardo, Alberto
A2 Ingeniería Mecánica y Diseño Industrial
K1 Energy-absorption
K1 Foam
K1 Analytical modelling
K1 High-velocity impact
AB A theoretical energy-based model to capture the ballistic response of sandwich structures made of composite material peels and a crushable foam core was developed. The model was based on the wave propagation theory and it was split in six stages with their corresponding energy-absorption mechanisms. The division of the stages was based on the physical interpretation of the perforation process involving reasonable hypotheses and simplifications. The energy-absorption was analysed at velocities below, near and above the ballistic limit within all the stages showing the general trends in terms of their relative importance. The time and velocity at each stage was separately analysed within a wide range of velocities in order to see the stage contribution to the energy-absorption. The model was validated against experimental results obtained in the literature showing a good agreement in terms of the impact-residual velocity curve. © 2021 The Author(s)
PB Elsevier
SN 0020-7403
YR 2021
FD 2021
LK http://hdl.handle.net/10498/24927
UL http://hdl.handle.net/10498/24927
LA eng
DS Repositorio Institucional de la Universidad de Cádiz
RD 10-may-2026