Comparative analysis of energy absorption behavior of tapered and grooved thin-walled tubes with the various geometry of the cross section

Multiobjective optimization of dimension and position of elliptical crush initiator on crashworthiness performance of square tube using response surface methodology

“…Other studies examined the impact of crush initiator placement, such as drilling holes (Estrada et al, 2019) and multiple holes (Malawat et al, 2019;Dionisius et al, 2022) in square steel tubes, leading to improved crashworthiness performance. Researchers have examined the use of V-notch, groove (Balaji and Annamalai, 2017), and tapered (Asanjarani et al, 2018) shapes as effective crush initiators, reducing the initial force spikes without compromising the total energy absorption. Hexagonal (Rogala et al, 2021b) and elliptical (Cheng et al, 2006) cut-outs in square aluminum tubes have been analyzed, revealing their significant influence on decreasing the PF.…”