Jeffey Jep Brown, Al Emran Ismail, and Dave Kidau Anak Wilie Chiak Mong, “Simulation Study of Elliptical Thin-Walled Structure Crash Box with Holed Initiator Through Axial Impact”, rpmme, vol. 3, no. 1, pp. 1041–1048, Aug. 2022, Accessed: Mar. 12, 2026. [Online]. Available: https://publisher.uthm.edu.my/periodicals/index.php/rpmme/article/view/7293