Stacking sequence effect on dry sliding wear behavior of hybrid Basalt/Glass fiber reinforced epoxy composite

Abstract

This study examined the dry sliding wear behavior of Basalt/Glass fiber hybrid laminate composites under various stacking sequences. The usual hand-lay-up technique associated with heat gun to avoid possible entrapment of air bubbles during fabrication has been utilized to fabricate the composite laminates. The abrasive wear behavior of the composite samples for different sequences (BBBB, BGGB, BGBG, GBBG) were investigated on a pin-on-disc machine using 400 grade abrasive paper. Experiment were conducted with applied normal loads of 10N, 15N, and 20N with sliding velocities of 1m/s, 2m/s, and 3m/s for a fixed sliding distance of 1000m. The experimental analysis reveals wear resistance enhancement with reinforcement of basalt and glass fiber as compared to neat epoxy composite. It was also observed that GBBG hybrid composite shows maximum wear resistance in comparison to other sequenced hybrid composite, irrespective to normal loads and sliding velocities. The failure mechanism of fractured and worn surface were also analyzed by Scanning Electron Microscope (SEM) and reported in this paper.