Basalt Fibre Composite: Characterization and Adaptation of ASTM Standard for Full Field Measurement
摘要
Natural fibre reinforcement composites such as Basalt Fibres represent potential alternative traditional fibres for various engineering applications. Beyond mechanical performance, a real alternative must meet requirements on lowering manufacturing cost. Therefore, understanding the behavior and performance of Basalt Fibre-Reinforced Polymers (BFRPs) demands detailed material characterization. This work studies the mechanical properties in both tension and compression of a Basalt Fibre composite in epoxy matrix fabricated at room temperature. To this end, ASTM D3039 and ASTM D6641 testing standards are followed to prepare and test BFRP samples and obtain their mechanical properties. Unidirectional samples are tested with different fibre orientations, namely, 0° and 90°. A load frame, Instron 5585H, is used with strain rates of 2 mm/min and 1.3 mm/min for tensile and compression tests, respectively. Full-field strain measurements are conducted using the digital image correlation technique (DIC) in 3D using GOM software. Regarding the compression testing, ASTM D6641, the test fixture is modified to allow full field strain measurements. Measured mechanical properties of BFRP are compared to those of traditional fibres, e.g., carbon and glass. Further comparisons are conducted against published mechanical properties of BFRP to reflect on manufacturing quality and requirements. Conclusions regarding testing and manufacturing requirements are presented.