Abstract Aluminium alloys, having high strength, ductility, and toughness, are useful structural materials. Composites of these with ceramic reinforcements improve the hardness wear-resistance, making them suitable for use in aerospace automobile industries. Since surface properties play a crucial role most applications, manufacturing composites aluminum alloys is recommended. For this purpose,...

This study presents the crashworthiness performance of Al6061 tubes with stiffened quatrefoil sections under axial and oblique impact conditions. Influences different types stiffeners through depth in design a sectional crash absorber structure are investigated, numerically. Four stiffener patterns considered angles 0º, 10º, 20º, 30º measured from horizontal axis. Force-displacement characteris...