Analytical and numerical modelling of high-velocity impact on multilayer alumina/aramid fiber composite ballistic shields: Improvement in modelling approaches
| Autor: | Riccardo Scazzosi, Sandro Campos Amico, Stephanie Gonçalves Nunes, Andrea Manes, Davide Gregori, Marco Giglio |
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| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Materials science
Composite number Alumina Fabrics/textiles Shields Modelo analítico 02 engineering and technology 010402 general chemistry 01 natural sciences Compósitos Industrial and Manufacturing Engineering Bernoulli's principle High-velocity impact Ceramic Composite material Aramid fiber Projectile Mechanical Engineering Numerical analysis Ensaios de impacto Analytical modelling Epoxy Fibras cerâmicas 021001 nanoscience & nanotechnology Computer Science::Other 0104 chemical sciences Mechanics of Materials visual_art Ceramics and Composites visual_art.visual_art_medium Tile 0210 nano-technology Análise numérica |
| Zdroj: | Repositório Institucional da UFRGS Universidade Federal do Rio Grande do Sul (UFRGS) instacron:UFRGS |
| Popis: | In this paper, analytical and numerical models were developed to simulate the perforation of ceramic-composite targets by small-caliber projectiles. The modified Bernoulli equation has been implemented in a new analytical model to simulate the interaction between projectile and ceramic tile and an energy formulation based on the wave propagation theory has been adopted to describe energy absorption of the composite backing. The numerical model, developed with the software LS-DYNA, is based on a full-Lagrangian finite-element analysis. Both models yielded good agreement with the performed impact tests on pure alumina single tile and on multilayer Al2O3-Kevlar 29/epoxy using actual 7.62 mm NATO Ball projectile. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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