Abstract
This study presents the details of experimental and analytical investigations on three different types of composites on their progress to failure under varied type of loadings. The composites are glass/epoxy-GFRP, Kevlar/epoxy-KFRP and Carbon/epoxy-CFRP composites. A series of experiments were carried out to find the variation in mechanical properties in all composites due to displacement controlled tests with different displacement rates such as 0.5mm/min, 1.0 mm/min and 1.5mm/min. The experimental results for CFRP, GFRP and KFRP under three different zones of response viz., stage I- response upto design load-DL, stage II-later from design load to ultimate load-UL followed by Stage II-response upto failure load-FL were discussed. Comparisons of relative performance under different rates and types of damage occurred are discussed from strength, stiffness and energy points of view.
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