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Hybrid composites based on aramid and basalt woven fabrics: Impact damage modes and residual flexural properties
Highlights ► The impact performances of basalt/aramid interply hybrid composites were studied. ► Effect of two different stacking sequences on impact resistance was investigated. ► Residual flexural strength after impact for the different lay-ups was analyzed. ► Intercalated hybrids exhibited the best energy absorption capability. ► Sandwich hybrids offered the best flexural strength at all impact energies.
Abstract The low-velocity impact behaviour of hybrid laminates reinforced with woven aramid and basalt fabrics and manufactured by resin transfer moulding was studied. Specimens with different stacking sequences were tested at three different energies, namely 5, 12.5 and 25J. Residual post-impact properties of the different configurations of aramid/basalt hybrid laminates were characterized by quasi static four point bending tests. Post-impact flexural tests have been monitored using acoustic emission in order to get further information on failure mechanisms. Results indicate that hybrid laminates with intercalated configuration (alternating sequence of basalt and aramid fabrics) have better impact energy absorption capability and enhanced damage tolerance with respect to the all-aramid laminates, while basalt and hybrid laminates with sandwich-like configuration (seven basalt fabric layers at the centre of the laminate as core and three aramid fabric layers for each side of the composite as skins) present the most favourable flexural behaviour.
Hybrid composites based on aramid and basalt woven fabrics: Impact damage modes and residual flexural properties
Highlights ► The impact performances of basalt/aramid interply hybrid composites were studied. ► Effect of two different stacking sequences on impact resistance was investigated. ► Residual flexural strength after impact for the different lay-ups was analyzed. ► Intercalated hybrids exhibited the best energy absorption capability. ► Sandwich hybrids offered the best flexural strength at all impact energies.
Abstract The low-velocity impact behaviour of hybrid laminates reinforced with woven aramid and basalt fabrics and manufactured by resin transfer moulding was studied. Specimens with different stacking sequences were tested at three different energies, namely 5, 12.5 and 25J. Residual post-impact properties of the different configurations of aramid/basalt hybrid laminates were characterized by quasi static four point bending tests. Post-impact flexural tests have been monitored using acoustic emission in order to get further information on failure mechanisms. Results indicate that hybrid laminates with intercalated configuration (alternating sequence of basalt and aramid fabrics) have better impact energy absorption capability and enhanced damage tolerance with respect to the all-aramid laminates, while basalt and hybrid laminates with sandwich-like configuration (seven basalt fabric layers at the centre of the laminate as core and three aramid fabric layers for each side of the composite as skins) present the most favourable flexural behaviour.
Hybrid composites based on aramid and basalt woven fabrics: Impact damage modes and residual flexural properties
Sarasini, Fabrizio (author) / Tirillò, Jacopo (author) / Valente, Marco (author) / Ferrante, Luca (author) / Cioffi, Salvatore (author) / Iannace, Salvatore (author) / Sorrentino, Luigi (author)
2013-01-04
13 pages
Article (Journal)
Electronic Resource
English
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