Numerical and experimental investigations of the response of aluminum cylinders with a cutout subject to axial compression

Han, Haipeng; Cheng, Junhui; Taheri‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬, Farid; Pegg, Neil

doi:10.1016/j.tws.2005.11.003

Cited by 84 publications

(48 citation statements)

References 6 publications

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“…Equations for mean and peak crushing forces of tubes with a cutout were proposed in this research using regression methods applied to the results. Han et al performed a series of nonlinear FE analyses to assess the effect of cutouts on thin cylindrical shells [3]. The results indicated that a cutout significantly reduced the buckling strength of the shells.…”

Section: Literature Surveymentioning

confidence: 99%

Fatigue experiments on circular hollow sections with CFRP reinforced cutouts

Ghazijahani

Jiao

Holloway

2015

Journal of Constructional Steel Research

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Section: Literature Surveymentioning

confidence: 99%

Fatigue experiments on circular hollow sections with CFRP reinforced cutouts

Ghazijahani

Jiao

Holloway

2015

Journal of Constructional Steel Research

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“…They found that the coefficient of variation of the critical load did not decrease with the imperfections' magnitude. Han et al (2006) observed that the location and size of a cutout significantly affect the buckling load; specifically, cutouts located near the fixed boundary could effectively absorb energy and redistribute the load more efficiently. Rokhi (2008, 2010) reported that longer shells exhibit much more sensitivity to the positions of the cutouts.…”

Section: Literature Reviewmentioning

confidence: 99%

Ultimate strength of cylindrical shells with cutouts

Lee

Sahin

Rigo

et al. 2017

Ships and Offshore Structures

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KEYWORDSCutouts; ultimate strength; wind turbine tower; parameters of influence; nonlinear finite element method ABSTRACT Cutouts -perforations that are often made in wind turbine towers to allow access or passage -can also reduce the towers' ultimate strength. Thus, cutouts may need to be included in the ultimate strength formulations for wind turbine towers as an influential parameter, where significant. The aims of this study are to examine the effects of cutouts on the ultimate-strength characteristics of wind turbine towers and to propose empirical formulae to predict the reduced ultimate strength under axial compression and pure bending. The structural features of cutouts and towers in real wind turbines are investigated, and the effects of different design variables -such as shape, location, aspect ratio, column slenderness ratio, and column aspect ratio -on the ultimate-strength behaviour are described. The ultimate strengths of the towers are computed using elastic-plastic large-deflection finite element analyses. Empirical formulae accommodating a whole range of actual dimensional characteristics of cutouts and towers are derived and proposed. The findings of this research and the proposed formulae have the potential to enhance the structural design and safety assessment of wind turbine towers.

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“…Therefore, significant performance deterioration of the perforated cylindrical shells can be expected under axial compressive loading. Few studies investigated the influence of perforation on the axial compressive behaviour of isotropic cylindrical shells [1][2][3][4][5][6][7][8][9]. Gupta et al [4] performed axial compression tests on perforated mild steel and aluminium round tubes.…”

Section: Introductionmentioning

confidence: 99%

“…The position of the hole along the longitudinal axis of the shell did not change the critical load. Han et al [7] carried out numerical investigations to examine the influences of square holes with various sizes and locations on the response of thin and moderately thick aluminium cylindrical shells under axial compression. The location and the size of the square holes significantly influenced the performance of the shells.…”

Section: Introductionmentioning

confidence: 99%

Behaviour of perforated GFRP tubes under axial compression

Wang

Sheikh

Hadi

2015

Thin-Walled Structures

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This study investigates the influences of various parameters on the behaviour of perforated Glass Fibre Reinforced Polymer (GFRP) tubes under axial compression. A total of 15 GFRP tubes with and without perforations were tested under axial compression. All the GFRP tubes were divided into two groups: 12 tubes with 89 mm outer diameter and 6 mm wall thickness and 3 tubes with 183 mm outer diameter and 8 mm wall thickness. The influences of hole diameter, vertical hole spacing, tube diameter, perforation pattern, transverse hole spacing, and hole reinforcement on the axial compressive behaviour of perforated GFRP tubes were experimentally investigated. Considerable decreases in the axial stiffness, axial critical load, and axial deformation capacity of perforated GFRP tubes have been observed. The hole diameter, tube diameter, perforation pattern, and transverse hole spacing significantly influence the axial compressive behaviour of perforated GFRP tubes. However, the influences of vertical hole spacing and hole reinforcement have been observed not significant. Design-oriented equations for the prediction of the axial stiffness, axial critical load and axial deformation capacity of perforated GFRP tubes under axial compression have been proposed. The proposed equations have been found to be in good agreement with experimental results and can be used for the reliable design of perforated GFRP tubes. Disciplines Engineering | Science and Technology Studies -------------------------------------------------------- Research Highlights 53Perforated GFRP tubes with multiple holes have been tested under axial compression. 54Influences of different parameters on behaviour of perforated GFRP are investigated. 55Design equations are developed to predict the capacity of perforated GFRP tubes.

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Numerical and experimental investigations of the response of aluminum cylinders with a cutout subject to axial compression

Cited by 84 publications

References 6 publications

Fatigue experiments on circular hollow sections with CFRP reinforced cutouts

Fatigue experiments on circular hollow sections with CFRP reinforced cutouts

Ultimate strength of cylindrical shells with cutouts

Behaviour of perforated GFRP tubes under axial compression

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