Stability of cylindrical shells of oval cross section in the bending state of stress

Koroleva, E.M.

doi:10.1016/0021-8928(73)90021-x

Cited by 4 publications

(3 citation statements)

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“…For bending about the major axis, buckling, in general, initiates neither at the point of maximum radius of curvature (since this lies on the neutral axis) nor at the point of maximum compressive stress (since the radius of curvature is a minimum at this location). Studies of the point at which buckling initiates in an oval section subjected to combined axial compression and bending (about the major and minor axes) and subsequent examination of the buckling and post-buckling response have been performed and reported [14,15,16]. The influence of plasticity on the buckling of oval cylinders under axial compression [17] and under bending [18] has also been investigated.…”

Section: Figure 1 Geometry Of Oval Sectionsmentioning

confidence: 99%

Structural behaviour of oval hollow sections

Gardner

2005

Fourth International Conference on Advances in Steel Structures

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Structural oval hollow sections represent a recent and rare addition to the range of cross-sections available to structural engineers and architects. Their emergence is also timely given the increasing application of hollow sections in construction and the current trend towards the use of bare steelwork to express structural form. However, despite widespread interest in their application on the basis of both architectural appeal and structural efficiency, a lack of verified design guidance is inhibiting uptake. This paper summarises previous analytical and experimental studies on oval hollow sections, and describes laboratory testing, numerical modelling and evaluation of preliminary design rules for the recently introduced structural elliptical hollow sections. Laboratory testing has been carried out in two primary structural configurations -compression and in-plane bending. In addition to the basic geometry (including initial geometric imperfections) and material properties, full load-deformation histories were recorded. Numerical models, using the finite element package ABAQUS, were created and validated against the test results, before a series of sensitivity and parametric studies were conducted. The models included features such as curved geometry, non-linear material properties and initial geometric imperfections. For stub column behaviour, ultimate load was generally well predicted by the numerical models, but prediction of deformation at ultimate load was less accurate. For bending behaviour, the full bending moment-deformation history was consistently well predicted. Comparison of the test and finite element results against preliminary design rules has demonstrated broadly acceptable agreement, but additional analysis on the basis of further testing and modelling is required.

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Section: Figure 1 Geometry Of Oval Sectionsmentioning

confidence: 99%

Structural behaviour of oval hollow sections

Gardner

2005

Fourth International Conference on Advances in Steel Structures

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“…This problem has been examined employing di erent methods such as Ritz method [1,2], ÿnite di erence energy approach [4,5], Galerkin's method in conjunction with ÿnite di erence scheme [6,[9][10][11][12], and ÿnite element technique [13], and through experiments [7,8]. It can be further seen from the available work that they are all based on using classical shell theories.…”

Section: Introductionmentioning

confidence: 99%

“…The elastic stability analysis of isotropic non-circular cylindrical shells has received limited attention in the literature [1][2][3][4][5][6][7][8][9][10][11][12][13], compared to that of circular cylindrical shells. This problem has been examined employing di erent methods such as Ritz method [1,2], ÿnite di erence energy approach [4,5], Galerkin's method in conjunction with ÿnite di erence scheme [6,[9][10][11][12], and ÿnite element technique [13], and through experiments [7,8].…”

Section: Introductionmentioning

confidence: 99%