Quasi-static compressive behavior of bioactive glass reinforced high density polyethylene composites.

• HDPE/BAG composite feedstock are developed for fused filament fabrication. • Composites show significant strain rate sensitivity under quasi-static conditions. • Compressive modulus and yield strength increase with BAG and strain rate. • All samples exhibit shear-barreling without brittle failure till unloading. • Absorbed energy is dissipated via formation of wrinkles, voids and fibrils. Compressive behavior of additively manufactured bioactive glass (BAG) reinforced high density polyethylene (HDPE) composites under quasi static conditions (0.001, 0.01 and 0.1 s−1 strain rates) is investigated in this work. HDPE feedstock filaments with 5, 10 and 20 wt% of bioactive glass are extruded for fused filament fabrication (FFF) based 3D printing (3DP). Compressive properties are extracted from the stress–strain plots. Elastic modulus and yield strength of the samples increase with filler addition and strain rate. Energy absorption increases with increase in strain rate and BAG content. All the samples exhibit homogeneous ductile deformation with distinct barrelling effect without any visible cracks. Deformation and energy absorption behavior of the tested samples are investigated using micrography. [ABSTRACT FROM AUTHOR]