ENERGY ABSORPTION OF THIN-WALLED SQUARE TUBES SUBJECTED TO AXIAL QUASI-STATIC COMPRESSIVE LOADS

Ramadan O.  Saied; Hamza K. El-Abani

doi:10.66411/jer.v18i.261

Authors

Ramadan O. Saied Mechanical Department, Faculty of Engineering, University of Tripoli Author
Hamza K. El-Abani Higher General Institute, Al-Najela - Libya Author

DOI:

https://doi.org/10.66411/jer.v18i.261

Keywords:

Collapse Mode, Energy Absorption, Thin-Walled Square Tubes, Plastic Hinges, Specific Energy

Abstract

This paper investigates the collapse behavior of thin-walled metal square tubes under axial quasi-static compressive loads. Several specimens of tubes were manufactured from carbon steel sheets with different thicknesses and lengths. The cross-sectional area of a tube is constant (100 cm2). An analytical in-extensional collapse mode was used to predict the mean load carrying capacity and the energy absorption. Load-displacement curves were obtained experimentally and two types of collapsed modes were observed. It was noted that the energy of the crushing was absorbed by fixed, included and traveled plastic hinges. Mean load carrying capacity and energy absorption was found to increase with the increase of tube thickness.

References

[1] Johnson, W., Soden, P.D., Hassani, S.T.S, "In-extensional Collapse of Thin- Wall Tube under Axial Compression", Journal of Strain Analysis, Vol. 12, No 4, 1977, PP. 317- 330 DOI: https://doi.org/10.1243/03093247V124317

[2] Johnson, W., and Reid, S.R., "Metallic Energy Dissipating Systems", Applied Mechanics Reviews, Vol. 31, 1978, pp. 277-288.

[3] Rawlings, B. and Shapland, P., "The behavior of thin walled box section undergross deformation", The Structural Engineer, Vol. 53, 1975, pp. 181-186.

[4] Saied, R., and Shuaeib, F., " Axial compression of thin-walled metal tubes", Journal of Engineering Research Faculty of Engineering, Al-Fateh University, Vol. 9, March, 2008 pp 111-126.

[5] Meng, Q. Al-Hassani, S.T.S and Soden, P.D., "Axial crushing of Square Tubes" International Journal of Mechanical Sciences, Vol. 25, No. 9-10, 1986, pp. 747- 773, DOI: https://doi.org/10.1016/0020-7403(83)90080-2

[6] Wierzbicki, T. and Abramowicz, W., "On the crushing Mechanics of Thin- Walled Structures", Journal Applied Mechanics, Vol. 50, 1983, pp. 727-734. DOI: https://doi.org/10.1115/1.3167137

[7] Abramowitz N., W. and Jones, “Dynamic Axial Crushing of Square Tubes”, International Journal of Impact Engineering, Vol. 2 (1984) pp179-208. DOI: https://doi.org/10.1016/0734-743X(84)90005-8

[8] Mamalis,A.G., Manolakos, A.K, Baldoukas, and Viegelahm G.L., “Energy Dissipation and Associated Failure Modes When Axially Loading Polygonal Thin-Walled Cylinders” , Thin-Walled Structures, 12, 1991, pp 17-34. DOI: https://doi.org/10.1016/0263-8231(91)90024-D

[9] Yang.C.C., “Dynamic Progressive Buckling of Square Tubes “, The 27 Conference on Theoretical and Applied Mechanics, Tainan, Taiwan, R.O.C., 12- 13 December, 2003.

[10] Meon Suhairil, Meona M.S and Husain” Investigation of The Amount of Energy Absorption of Aluminum Tube: Inversion and Concertina Collapse Mode”, International Journal on advanced science engineering information Technology”, Vo.2, No 33, (2012), pp 69-73. DOI: https://doi.org/10.18517/ijaseit.2.3.200

[11] Wierzbicki, T. and Huang, J. “Initiation of Plastic Folding Mechanism in Crushed Box Columns”, Thin-Walled Structures 13 (1991), pp115-143. DOI: https://doi.org/10.1016/0263-8231(92)90005-H

[12] Aljawi, A.A., “Axial Crushing of square steel tubes”, The 6th Saudi Engineering conference, KFUPM, Dhahran, December, 2002.

[13] Javad M, Mehdi M and Ashkan S.,”An energy absorption comparison of square, circular, and elliptic steel and aluminum tubes under impact loading”, Turkish J. Eng. Env. Sci., Vo. 33 (2009), PP 159 – 166.

[14] ASME Boiler and Pressure Vessel, Section II, Material specification, Part A: Ferrous, 1972 edition.