Numerical and Experimental Investigations on the Mechanical Properties of Milled Specimens from an AA7020 Tube

The reduction of weight is crucial in the automotive sector to reach a lower energy consumption and an increased range, especially for electrically powered vehicles. In this regard, body-in-white parts offer high potential application lightweight construction. required savings can be achieved by implementing with strength-to-weight ratio. A promising approach combination materials design, which realized tubular components made strength aluminum. Due their structural stiffness crashworthiness, those structures are often used as safety-relevant car body components. However, material characterization tube profiles major challenge, turn impedes accurate numerical simulation precise process design. contrast flat semi-finished parts, various effects production geometry, regarding stress state under load, must taken into account. For purpose, adapted testing methods considering geometrical mechanical properties have investigated, order generate model Within research work, out AA7020 W-temper condition were analyze properties. several tensile specimens milled from tube, so they also curvature profile. experimental tests been performed at different strain rates using universal machine type Gleeble 3500. To ensure proper measurement properties, clamping jaws adjusted curved samples. investigated parameters subsequently transferred FE-Model specimen enable prediction forming behavior. addition, FE was created comparison, gain profound knowledge influence geometric