Energy absorption characteristics of rib reinforced thin-wall extruded structure subjected to axial crush
09 Jul 2014-International Journal of Vehicle Safety (Inderscience Publishers Ltd)-Vol. 7, pp 345-373
TL;DR: In this paper, an experimental and numerical study on rib reinforced square cross-section thin wall extruded aluminium tubes formed by TIG welding process subjected to axial compression is presented.
Abstract: Results of an experimental and numerical study on rib reinforced square cross-section thin wall extruded aluminium tubes formed by TIG welding process subjected to axial compression are presented in this paper. The distance between the ribs plays a vital role in modifying the energy absorption capacity of structure. Ribs assist the formation of more number of plastic hinges. As the rate of loading increases, the mean crushing force and energy absorption also increases for the same axial crushing distance. Results of the numerical study were found to be within 5–8% variation with the experimental results.
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TL;DR: In this article, a comprehensive overview of recent advances in the development of corrugated structures for energy absorption applications, also considering the effects of Corrugation characteristics on their crashworthiness, is provided.
Abstract: It is widely known that the demand for lightweight structures with excellent energy absorption capacity is paramount in numerous engineering applications. Many publications have revealed that corrugated structures can collapse in a relatively controlled manner with a uniform force-displacement response and have remarkable energy absorption efficiency when compared with traditional structures without corrugations. The present work provides a comprehensive overview of recent advances in the development of corrugated structures for energy absorption applications, also considering the effects of corrugation characteristics on their crashworthiness. Such advanced energy absorbers include corrugated tubes, corrugated tapered tubes, corrugated beam and plates, corrugated honeycombs, corrugated core sandwich panels and other hybrid structures with complex corrugations. This review demonstrates that thin-walled structures with introduced corrugations can achieve more efficient and effective energy absorption. Finally, contemporary challenges of design and manufacture are discussed, as well as future directions for corrugated structures. This synopsis provides a useful platform for researchers and engineers designing corrugated structures for energy absorption applications.
130 citations
01 Jan 2021
TL;DR: Experimental and numerical study of single and doublewall square tube under axial compression was carried out at a displacement rate of 100 mm/min Two configurations of doublewall tube, viz, parallel and diamond were explored as mentioned in this paper.
Abstract: Experimental and numerical study of single and double-wall square tube under axial compression was carried out at a displacement rate of 100 mm/min Two configurations of double-wall tube, viz, parallel and diamond were explored During axial compression of double-wall tubes, crumpling takes place either at same end or at opposite ends for the two tubes Deformation at the same end absorbs 3–5% more energy than opposite end crushing For the same type of crumpling, diamond arrangement absorbs 5–8% more energy than parallel configuration Two different lengths of unequal tubes for parallel and diamond arrangement were examined It was observed that unequal length tubes improve crashworthiness characteristics
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994 citations
TL;DR: In this paper, a series of over 120 axial crushing tests were conducted on circular and square steel tubes loaded either statically or dynamically, and approximate theoretical predictions for static and dynamic progressive buckling were developed.
800 citations
TL;DR: In this paper, the axial progressive crushing of square box columns using a kinematically admissible method of analysis was investigated and four deformation modes which govern the behaviour for different ranges of the parameter c/h.
710 citations
"Energy absorption characteristics o..." refers background in this paper
...Crushing phenomenon of thin-walled structures has been investigated by several researchers (Erza and Fay, 1972; Johnson and Reid, 1978; Macaulay, 1987; Jones, 1989; Alghamdi, 2001). To understand axial crushing behaviour response of mild steel material, a detailed theoretical study had been done by Wierzbicki and Abramowicz (1983), Abramowicz and Jones (1984, 1986) and Langseth and Hopperstad (1996)....
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...To understand axial crushing behaviour response of mild steel material, a detailed theoretical study had been done by Wierzbicki and Abramowicz (1983), Abramowicz and Jones (1984, 1986) and Langseth and Hopperstad (1996). They studied the crashing strength and energy absorbing capacity of square thin walled columns and found that a good correlation can be obtained with existing experimental data....
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TL;DR: In this article, the common shapes of collapsible energy absorbers and different modes of deformation of the most common ones are reviewed, such as axial crushing, lateral indentation, lateral flattening, inversion and splitting, while noncollapsible systems such as lead extrusions or tube expansions are considered to be beyond the scope of this review.
Abstract: This paper reviews the common shapes of collapsible energy absorbers and the different modes of deformation of the most common ones. Common shapes include circular tubes, square tubes, frusta, struts, honeycombs, and sandwich plates. Common modes of deformation for circular tubes include axial crushing, lateral indentation, lateral flattening, inversion and splitting. Non-collapsible systems, such as lead extrusions or tube expansions, are considered to be beyond the scope of this review.
590 citations
"Energy absorption characteristics o..." refers background in this paper
...Crushing phenomenon of thin-walled structures has been investigated by several researchers (Erza and Fay, 1972; Johnson and Reid, 1978; Macaulay, 1987; Jones, 1989; Alghamdi, 2001)....
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TL;DR: In this paper, the results of an experimental investigation of axial crushing modes and energy absorption properties of quasi-statically compressed aluminium alloy tubes are presented, and the influence of tube length on these properties is discussed and quantified.
387 citations