ABSTRACT Despite numerous studies conducted on carbon and glass fiber‐reinforced polymers, basalt fiber composites loaded with mineral fillers as multifunctional materials are yet to be discovered. The basalt‐epoxy‐wollastonite interfacial adhesion is found to be critical in controlling mechanical integrity and energy absorption capacity of the material. To address this research gap, Hand Lay‐Up processed epoxy composites loaded with 70 wt% basalt fiber in six orientation patterns were designed and developed by adding wollastonite as an eco‐efficient mineral modifier. The effect of filler distribution and basalt fiber alignment on tensile, flexural, and impact properties was studied as per ASTMD638, ASTMD790, and ASTMD256 standards. The resulting optimal composite material B‐E‐F₀5 displayed tensile strength of 415. 63 MPa, flexural strength of 350. 27 MPa, and impact strength of 96. 1 J/m 2. Mechanistically speaking, this may be due to bridging action, fill‐matrix entanglement, and basalt fiber pull‐out forces. The microstructural SEM analysis of the sample‐05 with the damaged surface was investigated with the best mechanical attributes. The finite element analysis was conducted by developing a homogenized isotropic constitutive model. The results of the finite element analysis were found to be within a deviation of less than 12% to the experiment results. The research work helps to open the concept of structure and property relation to sustainability within the basalt fiber epoxy composite system. This will lay down the foundation to develop the next‐generation eco‐efficient structural composite materials.
Baba et al. (Wed,) studied this question.
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