Discussion: “On the Buckling of Circular Cylindrical Shells Under Pure Bending” (Seide, Paul, and Weingarten, V. I., 1961, ASME J. Appl. Mech., 28, pp. 112–116)

1961 ◽  
Vol 28 (3) ◽  
pp. 473-473
Author(s):  
E. E. Sechler
Keyword(s):  
Cylindrical Shells ◽  
Pure Bending ◽  
Circular Cylindrical Shells

On the Buckling of Circular Cylindrical Shells Under Pure Bending

1961 ◽  
Vol 28 (1) ◽  
pp. 112-116 ◽  
Author(s):  
Paul Seide ◽  
V. I. Weingarten
Keyword(s):  
Galerkin Method ◽  
Compressive Stress ◽  
Cylindrical Shells ◽  
Bending Stress ◽  
Pure Bending ◽  
Circular Cylindrical Shells ◽  
The Stability ◽  
The Galerkin Method

The stability of circular cylindrical shells under pure bending is investigated by means of Batdorf’s modified Donnell’s equation and the Galerkin method. The results of this investigation have shown that, contrary to the commonly accepted value, the maximum critical bending stress is for all practical purposes equal to the critical compressive stress.

On the Linear Buckling of Circular Cylindrical Shells Under Asymmetric Axial Compressive Stress Distributions

1966 ◽  
Vol 70 (672) ◽  
pp. 1095-1097 ◽  
Author(s):  
D. J. Johns
Keyword(s):  
Compressive Stress ◽  
Cylindrical Shells ◽  
Bending Moment ◽  
Transverse Load ◽  
Stress Distributions ◽  
Pure Bending ◽  
Linear Buckling ◽  
Circular Cylindrical Shells ◽  
Axial Compressive Stress

The linear buckling of circular cylindrical shells is considered with particular attention to the cantilever shell subjected to either a pure bending moment (M) or transverse load (P)—see Fig. 1. It is believed that the conclusions reached have wider application to more general loading cases.

Buckling Study of Steel Open Circular Cylindrical Shells in Pure Bending

Strain ◽  
2011 ◽  
Vol 47 (3) ◽  
pp. 209-214 ◽  
Author(s):  
S. Joniak ◽  
K. Magnucki ◽  
W. Szyc
Keyword(s):  
Cylindrical Shells ◽  
Pure Bending ◽  
Open Circular ◽  
Circular Cylindrical Shells

Experimental Investigation of Creep Buckling of Circular Cylindrical Shells Under Axial Compression and Bending

1968 ◽  
Vol 90 (4) ◽  
pp. 589-595 ◽  
Author(s):  
Lars A˚ke Samuelson
Keyword(s):  
Experimental Investigation ◽  
Axial Compression ◽  
Cylindrical Shells ◽  
Critical Time ◽  
Approximate Theory ◽  
Pure Bending ◽  
Creep Buckling ◽  
Stress Levels ◽  
Circular Cylindrical Shells ◽  
Pure Compression

The results are presented of an experimental investigation of creep buckling of circular cylindrical shells. The test specimens, manufactured from an aluminum alloy similar to 24S, had radius to thickness ratios between 30 and 150 and length to radius ratios greater than 2. They were subjected to axial compression or bending at a temperature of 225 deg C (430 deg F) and at various stress levels. The critical time under a constant load was determined as a function of the stress level, the shell geometry, and the type of loading. It was found that the shells subjected to pure compression had a substantially shorter lifetime than those subjected to pure bending with the same maximum applied stress. The thickest test specimens failed through collapse into a “wrinkling” mode which for the pure compression case is axisymmetric, whereas the thinner cylinders buckled into a typical diamond pattern. In all cases, buckling occurred at one of the edges. The postbuckling configuration was found to depend not only on the geometry of the shell but also on the load level. For very low stress levels, even the thinner cylinders buckled in the short wave pattern (symmetric for compression). A comparison between the present experimental results and theoretical values of the critical time presented in earlier works showed that a fairly good estimate may be obtained for the case of axial compression, whereas the approximate theory for creep buckling under pure bending gives an unduly conservative result.

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