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Experimental testing demonstrates increased energy absorption in rubber-interleaved basalt fiber-reinforced polymers, suggesting superior crashworthiness for dynamic composite applications.
Basalt fiber-reinforced polymers (BFRPs) offer a balance between the high performance of carbon fibers and the cost-effectiveness of E-glass fibers. Yet, poor interaction between the basalt fiber and polymer matrix hinders the full potential of the BFRP in dynamic applications. Herein, a rubber foil interleave is proposed to improve energy absorption and interfacial adhesion in BFRP. BFRP with and without rubber interleaves are fabricated using the vacuum-assisted technique and tested via Charpy impact in flatwise and edgewise configurations. Even after mass normalization, rubber-interleaved BFRP exhibits a 39% improvement in energy absorption when tested in the flatwise configuration. The incorporation of a rubber interleave reduces the damage area caused by impact loading and prevents delamination and crushing near the impact region in both edgewise and flatwise testing configurations.
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Yılmaz et al. (2026) studied this question.
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