Reliable and accurate prediction of the experimental buckling of thin-walled cylindrical shell under an axial load

Sliž, Robert; Chang, Min-Yung

doi:10.1016/j.tws.2010.11.009

Cited by 7 publications

(2 citation statements)

References 11 publications

(11 reference statements)

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“…In numerical simulation, steel tower of wind turbines have been considered as thin walled shell structure. Many deep researches of thin walled structures have been carried out [1,2,3]. Principles of design of thin walled structures can be found in EN1993-1-6 [4,5].…”

Section: Introductionmentioning

confidence: 99%

Resistance of Door Openings in Towers for Wind Turbines

Tran¹,

Veljković²,

Rebelo³

et al. 2014

Proceedings of the 3rd South-East European Conference on Computational Mechanics (SEECCM III)

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Abstract. In this paper, a study of resistance of a lower part of a wind tower including a door opening is presented. Nonlinear 3-D shell element models with real geometry of lower tower segment have been used to simulate the thin walled shell structure in order to study the influence of door opening on the strength of the tower. Two possible alternatives for strengthening the door openings were considered: (i) increasing thicknesses of plate around the opening and (ii) stiffening the opening by a stiffener. Buckling analysis and nonlinear analysis were performed to obtain critical buckling modes and strength of the tower segment. Nominal material properties of different steel grades were considered to investigate possibility of using higher strength steels. A parametric study considering possible local shell imperfections according to EN1993-1-6 has been considered. Additionally, comparative studies have been performed based on the FE model without door opening.

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Section: Introductionmentioning

confidence: 99%

Resistance of Door Openings in Towers for Wind Turbines

Tran¹,

Veljković²,

Rebelo³

et al. 2014

Proceedings of the 3rd South-East European Conference on Computational Mechanics (SEECCM III)

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“…Equally, more rigorous computational models have been developed, e.g., Ref. [7], [34][35][36][37][38][39]. References [7] and [30], for example, provide a thorough review of experimental techniques and results obtained in a wider context of structures prone to buckling.…”

Section: Introductionmentioning

confidence: 99%

Experimental Perspective on the Buckling of Pressure Vessel Components

Błachut

2013

Applied Mechanics Reviews

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This review aims to complement a milestone monograph by Singer et al. (2002, Buckling Experiments-Experimental Methods in Buckling of Thin-Walled Structures, Wiley, New York). Practical aspects of load bearing capacity are discussed under the general umbrella of "buckling." Plastic loads and burst pressures are included in addition to bifurcation and snap-through/collapse. The review concentrates on single and combined static stability of conical shells, cylinders, and their bowed out counterpart (axial compression and/or external pressure). Closed toroidal shells and domed ends onto pressure vessels subjected to internal and/or external pressures are also discussed. Domed ends include: torispheres, toricones, spherical caps, hemispheres, and ellipsoids. Most experiments have been carried in metals (mild steel, stainless steel, aluminum); however, details about hybrids (copper-steel-copper) and shells manufactured from carbon/glass fibers are included in the review. The existing concerns about geometric imperfections, uneven wall thickness, and influence of boundary conditions feature in reviewed research. They are supplemented by topics like imperfections in axial length of cylinders, imperfect load application, or erosion of the wall thickness. The latter topic tends to be more and more relevant due to ageing of vessels. While most experimentation has taken place on laboratory models, a small number of tests on full-scale models are also referenced.

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