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Fillet effect on the bending crashworthiness of thin-walled square tubes
Journal of Theoretical and Applied Mechanics
Filleting four corners of square tubes is suggested to reduce the peak force and improve energy absorbing performance. Three-point bending tests are conducted to investigate fillet radius effects employing an ABAQUS explicit code. Three cases characterized by the ratio of width to thickness are considered. Fillet greatly reduces the maximum forces compared with square cross-sections, and the normalized maximum forces decrease with increasing wall thickness when the fillet radius is larger.doi:10.15632/jtam-pl/144312 fatcat:7bl6egqq4rcexg4amexvk7v244