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Crush characteristics and energy absorption of thin-walled tubes with through-hole crush initiators

Subramaniyan, S. K. and Kananasan, A. K. and M. Yunus, M. R. and Mahzan, S. and Ghazali, M. I. (2014) Crush characteristics and energy absorption of thin-walled tubes with through-hole crush initiators. Applied Mechanics and Materials, 606. pp. 181-185. ISSN 16627482

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An experimental investigation was conducted to compare the crush characteristics and energy absorption capacity of circular and square tubes with located through-hole crush initiator. Circular through-holes were fabricated at three different configurations based on location into steel tubes which had a length of 200 mm. Furthermore, two different side configurations along the tube were considered for introducing the crush initiators. The results found that adding crush initiator onto the tubes effectively reduced the initial peak force of a thin-walled circular and square tubes under axial quasi-static loading. The peak crush force was reduced within a range 3-10% and 5-16% for circular and square tubes, respectively when compared with corresponding tubes without crush initiator. Moreover, the energy absorption capacity of the tubes was independent with the incorporation of through-hole crush initiators. However, the energy absorption of circular and square tubes slightly decreases when compared with the tubes fabricated four sided crush initiation and tubes without crush initiator. Overall, the effect of location and number of crush initiation significantly influenced the initial peak forces while maintain the energy absorbed.

Item Type: Article
Uncontrolled Keywords: Thin-walled tubes; crush/buckling initiators; peak force; energy absorption
Subjects: T Technology > TA Engineering (General). Civil engineering (General) > TA630-695 Structural engineering (General)
Divisions: Faculty of Mechanical and Manufacturing Engineering > Department of Mechanical Engineering Technology
Depositing User: Mr. Mohammad Shaifulrip Ithnin
Date Deposited: 13 Aug 2018 03:36
Last Modified: 13 Aug 2018 03:36
URI: http://eprints.uthm.edu.my/id/eprint/8910
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