Parametric investigation of the mechanical behavior of expanding-folding absorbers and their implementation in sandwich panels core
作者： S. Chahardoli , A. Alavi Nia , Mehrdad Asadi
DOI: 10.1016/J.TWS.2019.01.003
关键词:
摘要: Abstract Thin-walled energy absorbers are one of the common structures that used in vehicle body for increasing crashworthiness and consequently decreasing injuries. Investigated new type thin-walled aluminum matrix a steel punch absorber structure has been investigated this paper. Energy is absorbed as expansion followed by simultaneous folding. Present study proposes sandwich panel based on expanding-folding units to evaluate their crush mechanism. Parametric done using finite element code LS-DYNA while experimental tests have implemented validate FE model. The panels tested under three axial quasi-static loading conditions including rigid half-cylinder plate. considers angle, thickness thickness. optimum absorption then structural member until with high specific be introduced. Also it seen all curves section can estimated polynomial second order functions, accuracy.
sci-hub.se 参考文章(31)
Joseph R. Davis, Properties and selection : nonferrous alloys and special-purpose materials ASM International. ,(1990)
Arameh Eyvazian, Meisam K. Habibi, Abdel Magid Hamouda, Reza Hedayati, Axial crushing behavior and energy absorption efficiency of corrugated tubes Materials & Design. ,vol. 54, pp. 1028- 1038 ,(2014) , 10.1016/J.MATDES.2013.09.031
B.P.P. Almeida, M.L. Alves, P.A.R. Rosa, A.G. Brito, P.A.F. Martins, Expansion and reduction of thin-walled tubes using a die: Experimental and theoretical investigation International Journal of Machine Tools & Manufacture. ,vol. 46, pp. 1643- 1652 ,(2006) , 10.1016/J.IJMACHTOOLS.2005.08.018
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
Narayan Pokharel, Mahen Mahendran, Finite element analysis and design of sandwich panels subject to local buckling effects Thin-walled Structures. ,vol. 42, pp. 589- 611 ,(2004) , 10.1016/J.TWS.2003.08.002
A. Alavi Nia, M.Z. Sadeghi, An experimental investigation on the effect of strain rate on the behaviour of bare and foam-filled aluminium honeycombs Materials & Design. ,vol. 52, pp. 748- 756 ,(2013) , 10.1016/J.MATDES.2013.06.006
Kahina Sad Saoud, Philippe Le Grognec, A unified formulation for the biaxial local and global buckling analysis of sandwich panels Thin-walled Structures. ,vol. 82, pp. 13- 23 ,(2014) , 10.1016/J.TWS.2014.03.009
A. Karrech, A. Seibi, Analytical model for the expansion of tubes under tension Journal of Materials Processing Technology. ,vol. 210, pp. 356- 362 ,(2010) , 10.1016/J.JMATPROTEC.2009.09.024
A. Alavi Nia, M.Z. Sadeghi, The effects of foam filling on compressive response of hexagonal cell aluminum honeycombs under axial loading-experimental study Materials & Design. ,vol. 31, pp. 1216- 1230 ,(2010) , 10.1016/J.MATDES.2009.09.030
S. Szyniszewski, B.H. Smith, J.F. Hajjar, S.R. Arwade, B.W. Schafer, Local buckling strength of steel foam sandwich panels Thin-Walled Structures. ,vol. 59, pp. 11- 19 ,(2012) , 10.1016/J.TWS.2012.04.014