Numerical Simulation Study on the Thickness of Cylinder Influencing on Energy-Absorbing Characteristics

Abstract:

According to the problem that the thickness change of the square cylinder as energy-absorption component affect energy-absorption characteristics of the square cylinder, this paper researches that the thickness of the square cylinder for energy-absorption component of the square cylinders influence through theoretical analysis and using numerical calculation method. The theoretical part in this paper analyze local deformation of the square cylinder theoretical model as a result of axial compression ,and in the numerical simulation part this paper simulate the dynamic response of the thin wall square cylinder model structure , thereby research the thickness change of the square cylinder influence on energy-absorption characteristics of the square cylinder. At last, the change curve of the force-deformation is drawn with the change curve of force-peak load, and it is obtained law that the thickness of the square cylinder influence on energy-absorption characteristics the square cylinder and optimum thickness.

• Periodical: Applied Mechanics and Materials (Volume 532)
• Pages: 332-336
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.532.332
• Online since: February 2014
• Authors: Wen Hong Zheng*, Yi Shan Pan, Xiao Ma, Zhao Yun Qiu, Xiao Jing Zhu
• Keywords: Energy-Absorption, Shell, Square Cylinder, Thin Wall

References

[1] Xue Guilin, Sui Yunkang, Du Jiazheng. Numerical simulation and energy absorption optimitation of the thin-walled tube under axial impact [J]. Journal of Mechanical Strength, 2010, 32(6): 873-877. (in Chinese).

[2] Jones N. Structural Impact[M]. Cambridge: Cambridge University Press, (1989).

[3] Yu Tongxi. Impact energy absorbing devices based upon the plastic deformation of metallic of metallic elements[J]. Advances in Mechanics, 1986, 16(1): 28-37. (in Chinese).

[4] Huang X, Lu G, Yu T X. On the axial splitting and curling of circular metal tubes[J]. International Journal of Mechanical Sciences, 2002, 44: 2 369-2391.

DOI: 10.1016/s0020-7403(02)00191-1

[5] Huang X, Lu G, Yu T X. Energy absorption in splitting square metal tubes[J]. Thin-walled Structures, 2002, 40: 153-165.

DOI: 10.1016/s0263-8231(01)00058-1

[6] Wang Rui, Qin Qinghua, Cheng Guoqiang, et al. Research for the influence of thickness on the energy dis-tribution of splitting and curling circular steel tube [J]. Acta Mechinics Sinica, 2005, 37(2): 244-248(in Chinese).

[7] Lu G, Ong LS, Wang B, et al. An experimental study on tearing energy in splitting square metal tubes[J]. Inter-national Journal of Mechanical Sciences, 1994, 36 (12): 1 087-1097.

DOI: 10.1016/0020-7403(94)90060-4

[8] Lu G, Fan H, Wang B. An experimental method for determining ductile tearing energy of thin metal sheets [J]. Metals and Materials, 1998, 4(3): 432-436.

DOI: 10.1007/bf03187804

[9] Mahmudi R. Ductile tearing energy of aluminum alloy sheets determined by the single tensile testing (STT) method[J]. Journal of Materials Processing Technology, 2001, 1(18): 316-320.

DOI: 10.1016/s0924-0136(01)00856-1

[10] XIE Suchao. Research on energy absorbing structure of impact resistance subway vehicles [M. S. Thesis][D]. Changsha：Central South University, 2007: 3-14. (in Chinese).

[11] ZHAO Peihe，ZHANG, Xiufeng，SHI Xianyin. Research to the support way on rockburst coalface[J]. Ground Pressure and Strata Control 1996, (3): 9-11. (in Chinese).