On the buckling of stiffened imperfect cylindrical shells

Arbocz, J.; Sechler, E. E.

doi:10.2514/3.7258

Cited by 26 publications

(2 citation statements)

References 9 publications

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“…The first is building-up with rings and axial stiffeners (see, for example, Hutchinson and Amazigo (1967), Hutchinson and Frauenthal (1969), Arbocz and Sechler (1976), Sheinman and Simitses (1977), and Simitses and Sheinman (1978)); the second is composite laminated layups (see for example Sheinman et al (1983) and Simitses et al (1985)). Unlike their cylindrical counterparts, in stiffened conical shells the spacing of the stiffeners varies with the shell coordinates, which ultimately results in coordinate dependence of their contribution to the stiffness coefficients.…”

Section: Introductionmentioning

confidence: 99%

Stability of imperfect stiffened conical shells

Jabareen

Sheinman

2009

International Journal of Solids and Structures

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a b s t r a c tA general procedure is developed for stability of stiffened conical shells. It is used for studying the sensitivity behavior with respect to the stiffener configurations. The effect of the pre-buckling nonlinearity on the bifurcation point, as well as the limit-point load level, is examined. The unique algorithm presented by the authors is an extended version of an earlier one, adapted for determination of the limit-point load level of imperfect conical shells. The eigenvalue problem is iteratively solved with respect to the nonlinear equilibrium state up to the bifurcation point or to the limit-point load level.A general symbolic code (using MAPLE) was programmed to create the differential operators based on Donnell's type shell theory. Then the code uses the Galerkin procedure, the Newton-Raphson procedure, and a finite difference scheme for automatic development of an efficient FORTRAN code which is used for the parametric study.

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Section: Introductionmentioning

confidence: 99%

Stability of imperfect stiffened conical shells

Jabareen

Sheinman

2009

International Journal of Solids and Structures

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“…The effect of axial loads, external pressure and thermal loads on stiffened cylindrical shells has also been investigated in the past [4][5][6][7][8] . Theoretical and numerical calculation of stress in stress concentration points on both torospherical and ellipsoidal heads have also been investigated in the previous works [9][10][11] and a complete method for using reinforcement plates for these points have been addressed in ASME codes.…”

Section: Introductionmentioning

confidence: 99%

Numerically Studying the Effect of Stiffening Rings on Reducing the Thickness of Torospherical Heads under Pressure on Their Concave Side

Golabi¹,

Ghorbanpour-Arani²,

Zamani³

2008

American J. of Applied Sciences

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Abstract:The high thickness of heads used in pressure vessels is always one of the main concerns of designers and manufacturers. A thorough study has been conducted on all types of heads including torospherical heads, with external and internal pressure to reduce their thickness using stiffening rings by finite element technique. Here the result of analysis on heads with pressure on their concave side is presented. The results include a method for determining the dimensions of the most suitable ring and its location on heads from one hand and its effect on reduction of the head thickness from the other hand. The result of analysis showed that using suitable stiffening ring may reduce up to 30% of the head thickness.

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Bauteilunabhängige, konstruktionsbezogene Berechnungsverfahren und Phänomene

Klapp¹

1980

Apparate- Und Anlagentechnik

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On the buckling of stiffened imperfect cylindrical shells

Cited by 26 publications

References 9 publications

Stability of imperfect stiffened conical shells

Stability of imperfect stiffened conical shells

Numerically Studying the Effect of Stiffening Rings on Reducing the Thickness of Torospherical Heads under Pressure on Their Concave Side

Bauteilunabhängige, konstruktionsbezogene Berechnungsverfahren und Phänomene

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