Investigation of mechanical behavior of energy absorbers in expansion and folding modes under axial quasi-static loading in both experimental and numerical methods
作者： A. Alavi Nia , S. Chahardoli
DOI: 10.1016/J.TWS.2017.09.013
关键词: Parametric statistics 、 Quasistatic loading 、 Folding (DSP implementation) 、 Composite material 、 Numerical analysis 、 Energy (signal processing) 、 Matrix (mathematics) 、 Cross section (physics) 、 Aluminium 、 Materials science
摘要: Abstract In this paper, a new form of energy absorbing structures has been introduced which is occurred during combined process. The structure consists thin-walled aluminum matrix and steel punch. Energy absorbed as the gets expanded followed by simultaneous punch folding. order to demonstrate effectiveness absorbent introduced, many samples each type were fabricated tested. one case, it was found that, tends absorb up 32% more than sum its individual parts. Also, absorption properties parametric study simulated using finite element code LS-Dyna. results showed that among different section geometries, with rectangular have lowest highest crush force efficiency; increasing number sides cross increased efficiency decreased. addition, thickness leads absorption. selecting an appropriate for punch, can predict overall shape load-displacement curve maximum location structure.
sci-hub.se 参考文章(25)
Joseph R. Davis, Properties and selection : nonferrous alloys and special-purpose materials ASM International. ,(1990)
S.R. Reid, T.Y. Reddy, Static and dynamic crushing of tapered sheet metal tubes of rectangular cross-section International Journal of Mechanical Sciences. ,vol. 28, pp. 623- 637 ,(1986) , 10.1016/0020-7403(86)90077-9
Z. Ahmad, D.P. Thambiratnam, A.C.C. Tan, Dynamic energy absorption characteristics of foam-filled conical tubes under oblique impact loading International Journal of Impact Engineering. ,vol. 37, pp. 475- 488 ,(2010) , 10.1016/J.IJIMPENG.2009.11.010
M. Kathiresan, K. Manisekar, V. Manikandan, Crashworthiness analysis of glass fibre/epoxy laminated thin walled composite conical frusta under axial compression Composite Structures. ,vol. 108, pp. 584- 599 ,(2014) , 10.1016/J.COMPSTRUCT.2013.09.060
H El-Sobky, A.A Singace, M Petsios, Mode of collapse and energy absorption characteristics of constrained frusta under axial impact loading International Journal of Mechanical Sciences. ,vol. 43, pp. 743- 757 ,(2001) , 10.1016/S0020-7403(00)00036-9
Hanfeng Yin, Guilin Wen, Shujuan Hou, Kai Chen, Crushing analysis and multiobjective crashworthiness optimization of honeycomb-filled single and bitubular polygonal tubes Materials & Design. ,vol. 32, pp. 4449- 4460 ,(2011) , 10.1016/J.MATDES.2011.03.060
A.G. Hanssen, M. Langseth, O.S. Hopperstad, Static and dynamic crushing of square aluminium extrusions with aluminium foam filler International Journal of Impact Engineering. ,vol. 24, pp. 347- 383 ,(2000) , 10.1016/S0734-743X(99)00169-4
G.M. Nagel, D.P. Thambiratnam, Computer simulation and energy absorption of tapered thin-walled rectangular tubes Thin-walled Structures. ,vol. 43, pp. 1225- 1242 ,(2005) , 10.1016/J.TWS.2005.03.008
Jialing Yang, Min Luo, Yunlong Hua, Guoxing Lu, Energy absorption of expansion tubes using a conical–cylindrical die: Experiments and numerical simulation International Journal of Mechanical Sciences. ,vol. 52, pp. 716- 725 ,(2010) , 10.1016/J.IJMECSCI.2009.11.015
J. M. ALEXANDER, AN APPROXIMATE ANALYSIS OF THE COLLAPSE OF THIN CYLINDRICAL SHELLS UNDER AXIAL LOADING Quarterly Journal of Mechanics and Applied Mathematics. ,vol. 13, pp. 10- 15 ,(1960) , 10.1093/QJMAM/13.1.10