Abstract
Finite element analysis and optimization design carry out for the quasi static responses of foam-filled double circular tube is presented in this paper. In the investigation of the crashworthiness capability, some aspects were considered for variations in geometry parameters of tubes and the loading condition to investigate the crashworthiness capability. Empty, foam-filled, and full foam-filled double tubes of thin walled structures were observed subjected to oblique impact (0˚ - 40˚). The numerical solution was used to determine the crashworthiness parameters. In addition, NSGA II and Radial Basis Function were used to optimize the crashworthiness capability of tubes. In conclution, the crash performaces of foam-filled double tube is better than the other structures in this work. The outcome that expected is the new design information of various kinds of cylindrical tubes for energy absorber application.
Highlights
Foam-filled thin-walled structures have recently increased interest in the automotive industry because of the great energy absorption capacity and extraordinary lightweight
Crashworthiness optimization of double circular tubes under different impact angular loading (0, 10, 20, 30 and 40 degree), which serve as guidelines for efficient design of foam-filled bitubal tubes
The results indicated that Energy Absorption (EA) is more sensitive in progressive collapse than bending collapse on the diameter of the tube wall responses
Summary
Foam-filled thin-walled structures have recently increased interest in the automotive industry because of the great energy absorption capacity and extraordinary lightweight,. F. Djamaluddin et al / Finite Element Analysis and Crashworthiness Optimization of Foam-filled Double Circular under Oblique Loading 2177. Some researchers (Seitzberger et al 1997, 2000; Yuen et al, 2008) used a double-cell profile arrangements with similar cross-section and the double tubes are empty or filled with aluminium foam to increase the energy absorption capabilities of thin-walled tubes,. Crashworthiness optimization of double circular tubes under different impact angular loading (0, 10, 20, 30 and 40 degree), which serve as guidelines for efficient design of foam-filled bitubal tubes. To model energy absorbing structures, the aluminium foam filled double tubes were 250 mm in length, and the diameter of the outer and inner tubes are 100 mm and 50 mm, respectively. F. Djamaluddin et al / Finite Element Analysis and Crashworthiness Optimization of Foam-filled Double Circular under Oblique Loading m/s in the Figure 1. For all contact for instance the interaction between the foam and the tube walls, the cofficient value is 0.3
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