Energy Absorption by Thin-Walled Tubes with various Thicknesses in Rectangular and Square Sections under Different Quasi-Static Conditions: Experimental and Numerical Studies

Document Type: Original Article

Authors

1 Faculty of Industrial and Mechanical Engineering, Islamic Azad University, Qazvin Branch, Qazvin, Iran

2 Department of Mechanical Eng., Toyserkan Branch, Islamic Azad University, Toyserkan, Iran

Abstract

Impact is one of the most important subjects which always have been considered in mechanical science. Nature of impact is such that which makes its control a hard task. Therefore it is required to adopt a safe and secure mechanism for transferring the impact to other vulnerable parts of a structure, when it is necessary. One of the best methods of absorbing impact energy is using Thin-walled tubes, where the tubes collapse under impact by absorbing energy, while this prevents the damage to other parts. Purpose of the present study is to survey the deformation and energy absorption of tubes with different type of cross section (rectangular or square) and with similar volumes, height, mean cross section, and material under different speed loading. Lateral loading of tubes are quasi-static type and in addition to the numerical analysis, also experimental experiment has been performed to evaluate the accuracy of the results. Results from the survey indicates that at the same conditions which mentioned above, samples with square cross sections, absorb more energy compared to rectangular cross sections; also by increasing the  loading speed and thickness, the energy absorption would be more..

Keywords


[1]     Carney, J. F, III, Austin CD, “Reid SR. Modeling of steel tube vehicular crash cushion”, ASCE Transportation Engineering 1983, Vol. 109, No. 3, pp. 331-46.

[2]     Reid, S.R, Drew, SLK, Carney, J. F, III. “Energy absorbing capacities of braced metal tubes”, International Journal of Mechanical Sciences 1983, Vol. 25, No. 9-10, pp. 649-67.

[3]     Watson, A. R, Reid, S. R, Johnson, W., and Thomas, S. G., “Large deformations of thin-walled circular tubes under transverse loading-II”, International Journal of Mechanical Sciences 1976, Vol. 18, pp. 387-97.

[4]     Watson, A. R, Reid, S. R, Johnson, W., “Large deformations of thin-walled circular tubes under transverse loading-III”, International Journal of Mechanical Sciences 1976, Vol.18, pp. 501-9.

[5]     Johnson, W., Reid, S. R, and Reddy, T. Y., “The compression of crossed layers of thin tubes”, International Journal of Mechanical Sciences 1977, Vol. 19, pp. 423-37.

[6]     Mutchler, L. D., “Energy absorption of aluminum tubing”, Transactions of ASME, Journal of Applied Mechanics 1960, Vol. 27,pp. 740-3.

[7]     DeRuntz, J. A, Hodge, P. G., “Crushing of a tube between rigid plates”, Transactions of ASME, Journal of Applied Mechanics 1963, Vol. 30, pp. 391-5.

[8]     Gupta, N. K., Sekhon, G. S. and Gupta, P. K., “Study of lateral compression of round metallic tubes”, Thin Walled Structures, 2005, No. 43, pp. 895-922.

[9]     Niknejad, A., Liaghat, G. H., Moslemi Naeini, H., and Behravesh, A. H., “Experimental and theoretical investigation of the first fold creation in thin walled columns”, Acta Mechanica Solida Sin 2010; Vol. 23, pp. 353–60.

[10]  Niknejad, A., Liaghat, G. H., Moslemi Naeini, H., and Behravesh, A.H., “Theoretical and experimental studies of the instantaneous folding force of the polyurethane foam-filled square honeycombs”, Mater Des 2011, Vol. 32, pp. 69–75.

[11]  Niknejad, A., Abedi, M. M, Liaghat, G. H, and Zamani Nejad, M., “Prediction of the mean folding force during the axial compression in foam-filled grooved tubes by theoretical analysis”, Mater Des 2012, Vol. 37, pp. 144–51.

[12]  Abedi, M. M, Niknejad, A., Liaghat, G. H, and Zamani Nejad, M., “Theoretical and experimental study on empty and foam-filled columns with square and rectangular cross section under axial compression”, Int J Mech Sci 2012, Vol. 65, pp. 134–46.

[13]  Yan, L., Chouw, N., “Crashworthiness characteristics of flax fibre reinforced epoxy tubes for energy absorption application”, Mater Des 2013, Vol. 51, pp. 629–40.

[14]  Yan, L., Chouw, N., Jayaraman, K., “Effect of triggering and polyurethane foam-filler on axial crushing of natural flax/epoxy composite tubes”, Mater Des 2014, Vol. 56, pp. 528–41.

[15]  Mahdi, E., Sultan, H., Hamouda, A. M. S, Omer, A. A., and Mokhtar, A. S., “Experimental optimization of composite collapsible tubular energy absorber device”, Thin-Walled Struct 2006, Vol. 44, pp. 1201–11.

[16]  Zhang, Y., Sun, G., Li, G., Luo, Z., and Li, Q., “Optimization of foam-filled bitubal structures for crashworthiness criteria”, Mater Des 2012, Vol. 38, pp. 99–109.

[17]  Arnold, B., Altenhof, W., “Experimental observations on the crush characteristics of AA6061 T4 and T6 structural square tubes with and without circular discontinuities”, Int J Crashworthines 2004, Vol. 9, pp. 73–87.

[18]  Cheng, Q., Altenhof, W., and Li, L., “Experimental investigations on the crush behavior of AA6061-T6 aluminum square tubes with different types of through-hole discontinuities”, Thin-Walled Struct 2006, Vol. 44, pp. 441–54.

[19]  Alavi Nia, A., Badnava, H., Fallah Nejad, Kh., “An experimental investigation on crack effect on the mechanical behavior and energy absorption of thin-walled tubes”, Mater Des 2011, Vol. 32, pp. 594–607.