Sensitivity of Al/Mg/Ti/Cu/SiC Hybrid Composite to Static Loads

Aluminium hybrid composites are widely used for lightweight and crashworthy structures due to their improved mechanical and tribological properties. Therefore, it is necessary to investigate the deformation behaviour of these composites for enhancing the performance of their structures while in service. In this paper, an experimental investigation on the strain rate sensitivity of the newly developed aluminium hybrid composite (Al–2Mg–1.5Ti–1Cu–5SiC) through the stir casting process is presented under quasi-static compressive (0.001–0.1 s−1) and bending/flexural (1–100 mm/min) loads. Different mechanical tests (compression and three-point bending) are carried out on universal testing machine at low strain rates/speeds. Effects of geometry and heat treatment of specimens are also observed under compression. Johnson–Cook material model predicts the flow stress of the composite under compression well as compared to the experimental results.