Bending collapse of thin-walled circular tubes and computational application

Liu, Yucheng; Day, M. L.

doi:10.1016/j.tws.2007.07.014

Cited by 59 publications

(22 citation statements)

References 15 publications

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“…Test of this specimen was carried out in order to explore the influence of notches on the cylinders with bending buckling mode. In this mode shape, the length of the cylinder is divided into some regions that the joint points of these subdivided regions are the plastic hinges which lead the structure to collapse from these points [16]. The yield load of the cylinder is observed for this specimen prior to collapse load addressing the plastic buckling for this size, as seen in Fig.…”

Section: L/d = 10mentioning

confidence: 80%

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The study of ultimate strength in notched cylinders subjected to axial compression

Kabir

Nazari

2011

Journal of Constructional Steel Research

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Section: L/d = 10mentioning

confidence: 80%

“…The buckling mode shape of this cylinder is known as bending collapse [16] that appears after yielding of the section. Test of this specimen was carried out in order to explore the influence of notches on the cylinders with bending buckling mode.…”

Section: L/d = 10mentioning

confidence: 99%

The study of ultimate strength in notched cylinders subjected to axial compression

Kabir

Nazari

2011

Journal of Constructional Steel Research

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“…Gupta and Venkatesh [8] revealed the influence of diameter and wall thickness of circular tubes on their axial collapse behaviour. Mamalis et al and Liu studied the bending collapse of the curved circular tube by considering it as an efficient energy absorber, and derived numerical models to describe the bending behaviour of such tubes during crashes [17,18]. Besides axial crushing, Zhen and Wierzbicki [22] derived a momentangle response for the tubular structures during quasi-static analyses via experimental and analytical studies.…”

Section: Literature Reviewmentioning

confidence: 99%

Optimisation of the Crushing Performance of Tubular Structures

Liu

2010

HKIE Transactions

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This paper presents crashworthiness design for thin-walled tubes with circular cross sections, including straight and curved tubes, which are used as energy-absorbing devices. Optimised designs of the circular cross sectional profile for both straight and curved thin-walled tubes are obtained to maximise such tubes' crushing performance. The optimisation process is carried out by using the design of experiments method (DOE) and finite element analysis (FEA). Crash behaviour of both straight and curved tubes is investigated and the effects of the circular cross sections on the structures' crushing performance are analysed through a parametric study. In this paper, a comparatively new but efficient FEA model, simplified model, is used for this design project. It is validated that compared to the detailed FE model, the simplified model can well be used for the product design problem while saving much more modelling labour and computer resources.

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“…Due to the remarkable energy absorbing capacity and extraordinary light weight of thin-walled structures, a large number of studies (Mirfendereski et al 2008;Liu and Day 2008;Song et al 2005;Hanssen et al 2000;Liu and Dag 2009;Kavi et al 2006;Seitzberger et al 2000;Liu 2009;Tai et al 2010) were conducted on their crashworthiness by experimental, analytical and numerical methods. Using numerical method, Liu (2008a) studied the regular multi-corner thin-walled columns which include straight octagonal columns and curved hexagonal columns.…”

Section: Introductionmentioning

confidence: 99%

“…From numerical results, they found that the cross and pentagon tubes made of aluminum and steel absorbed 48-92 and 31-60 % more energy than the rectangle cross section tube at the condition of equivalent material. Liu et al (2008) studied the straight thin-walled box section beams numerically. To achieve the best crashworthiness, they optimized the cross-sectional profiles of the beam.…”

Section: Introductionmentioning

confidence: 99%

Crashworthiness design of horsetail-bionic thin-walled structures under axial dynamic loading

Xiao

Yin

Fang

et al. 2016

Int J Mech Mater Des

105

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Bio-inspired engineering design has drawn increased attention in recent years for the excellent structural and mechanical properties of the biological systems. In this study, the horsetail-bionic thin-walled structures (HBTSs) were investigated for their crashworthiness under axial dynamic loading. Six HBTSs with different cross section configurations (i.e., number of cells) were evaluated using nonlinear finite element (FE) simulations. To obtain the optimal design of the HBTSs, an ensemble metamodel-based multi-objective optimization method was employed to maximize the specific energy absorption while minimizing maximum impact force of the HBTSs. Using the ensemble metamodeling, FE simulations and the NSGA-II algorithm, the Pareto optimum designs of all six HBTSs were obtained and the HBTS with 16 cells were found to have the best crashworthiness. An optimum design of the HBTS with 16 cells was verified using FE simulation and found to have good agreement with simulation results.

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Bending collapse of thin-walled circular tubes and computational application

Cited by 59 publications

References 15 publications

The study of ultimate strength in notched cylinders subjected to axial compression

The study of ultimate strength in notched cylinders subjected to axial compression

Optimisation of the Crushing Performance of Tubular Structures

Crashworthiness design of horsetail-bionic thin-walled structures under axial dynamic loading

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