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Journal ArticleDOI

Experimental study on the energy absorption capability of circular corrugated tubes under lateral loading and axial loading

02 Feb 2015-Vol. 229, Iss: 13, pp 1739-1761
TL;DR: In this article, a new type of energy absorber called an expansion joint (i.e., a corrugated tube) is examined and several experiments are performed on three types of thin-walled specimen, namely circu...
Abstract: A new type of energy absorber called an expansion joint (i.e. a corrugated tube) is examined in this research. Several experiments are performed on three types of thin-walled specimen, namely circu...
Citations
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Journal ArticleDOI
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

Journal ArticleDOI
TL;DR: In this article, a multi-objective optimisation design for multi-cell structures under multiple loading angles was proposed, where three different cross-sectional shapes of triangulation tubes were considered.

46 citations

Journal ArticleDOI
TL;DR: In this paper, the experimental results showed that corrugated metal composite tubes demonstrate perfect energy absorption characteristics in terms of uniformity of load-displacement diagram, reduction of initial peak load and controlling failure mechanism.

30 citations

Journal ArticleDOI
TL;DR: In this paper, the authors investigated the impact of confinement on the cross-sectional behavior of concrete-filled galvanized corrugated steel tubular (CFGCST) columns and proposed a theoretical derivation to characterize the non-uniform confining stress by fully considering the bidirectional curvatures of CSP and debonding failure.

28 citations

Journal ArticleDOI
01 May 2018
TL;DR: In this paper, a hybrid bumper-crush can design where a recoverable structure is integrated into the bumper beam and crush can for a mild collision situation in addition to the traditional energy absorbers recommended for more severe collisions is presented.
Abstract: Nowadays, most energy absorbing devices used in industry absorb energy through permanent deformation In some cases, consumers have to repair or even replace energy absorbers even after a mild collision The work presented in this paper proposes a novel re-usable solution in the form of a hybrid bumper-crush can design where a recoverable structure is integrated into the bumper beam and crush can for a mild collision situation in addition to the traditional energy absorbers recommended for more severe collisions The main investigation is focused around the performance and optimisation of Negative Stiffness honeycomb, the recoverable structure and honeycomb-filled elements A comprehensive study was undertaken to investigate numerically the behaviour of these energy absorbing structures under crash conditions, corresponding to real scenarios and simulated using a specially developed finite element model

26 citations


Cites methods from "Experimental study on the energy ab..."

  • ...The geometrical parameters of the circular tube chosen for the NSH filler design were selected on the basis of the work by Zarei and Kröger,(10) taking into account the efficiency of circular tubes.(17) The model of the empty circular tube and then with an NSH filler was developed using the Solidworks 2014 three-dimensional computer-aided design environment following the approach discussed above....

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References
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Journal ArticleDOI
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

Journal ArticleDOI
TL;DR: In this article, a total of 70 quasi-static tests were conducted on circular 6060 aluminium tubes in the T5, as-received condition and the average crush force, FAV, was non-dimensionalised and an empirical formula established as FAV/MP=72.3(D/t)0.32.

413 citations

Journal ArticleDOI
TL;DR: In this paper, the authors focus on the crushing mechanics of thin-walled components and propose a method based on the Superfolding Element (SE) concept, which originates from experimentally observed folding patterns of crushed shell elements.
Abstract: The key structural components of the majority of transportation vehicles are designed as thin-walled components. During a crash event, a number of structural components must sustain abnormal loadings in order to meet stringent integrity requirements. At the same time other components must dissipate impact energy in a controlled manner that limits the deceleration of a vehicle to a required safety limit. The present paper focuses on the crushing mechanics of thin-walled components. The analysis method is based on the Superfolding Element (SE) concept, which originates from experimentally observed folding patterns of crushed shell elements. The paper presents milestones of the underlying theory of plastic shells and basic design considerations that are coupled with the SE-based predictive techniques in a CAE software. The paper also presents basic examples of the design process of typical energy absorbing components.

285 citations

Journal ArticleDOI
TL;DR: In this article, the authors present the steps to follow in order to design specific lightweight impact attenuators, based on a detailed analytical, experimental and numerical analysis of the structural crashworthiness.

226 citations

Journal ArticleDOI
TL;DR: An overview of energy absorbers in the form of tubes in which the material used is predominantly mild steel and/or aluminium can be found in this article, where the common modes of deformation such as lateral and axial compression, indentation and inversion are reviewed.
Abstract: This paper presents an overview of energy absorbers in the form of tubes in which the material used is predominantly mild steel and/or aluminium. A brief summary is also given of frusta type energy absorbers. The common modes of deformation such as lateral and axial compression, indentation and inversion are reviewed. Theoretical, numerical and experimental methods which help to understand the behaviour of such devices under various loading conditions are outlined. Although other forms of energy absorbing materials and structures exist such as composites and honeycombs, it is deemed outside the scope of this review. Nonetheless, a brief description will be given on these materials. It is hoped that this article will provide a useful platform for researchers and design engineers to gain a useful insight into the progress made over the last few decades in the field of tube type energy absorbers.

206 citations


"Experimental study on the energy ab..." refers background in this paper

  • ...Olabi et al.15 performed an experimental study on two types of nested circular energy absorber subjected to dynamic lateral compression by a dropweight machine....

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  • ...Olabi et al.(11) performed an overview of mild steel and aluminium tubes during the energy absorption process subjected to axial compression, lateral compression, indentation and inversion....

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  • ...Olabi et al.11 performed an overview of mild steel and aluminium tubes during the energy absorption process subjected to axial compression, lateral compression, indentation and inversion....

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