Buckling of Semimonocoque Structures Under Compression

1942 ◽  
Vol 9 (3) ◽  
pp. A117-A121
Author(s):  
Tsun Kuei Wang
Keyword(s):  
Cylindrical Shell ◽  
Axial Compression ◽  
Cross Section ◽  
Compressive Load ◽  
Circular Cross Section ◽  
Critical Value ◽  
Cylindrical Structure ◽  
Stiffened Cylindrical Shell ◽  
Thin Tube ◽  
Longitudinal Stiffeners

Abstract This paper presents an investigation of the strength of a stiffened cylindrical shell under the action of uniform axial compression. It is assumed that the cylindrical structure is a very thin tube of circular cross section; its reinforcements consist essentially of a great number of uniform longitudinal stiffeners and a great number of uniform transverse rings. It is often desirable to know the critical value of the compressive load for the buckling of such a structure.

CHAOTIC VIBRATIONS OF CLOSED CYLINDRICAL SHELLS IN A TEMPERATURE FIELD

2008 ◽  
Vol 18 (05) ◽  
pp. 1515-1529 ◽  
Author(s):  
A. V. KRYSKO ◽  
J. AWREJCEWICZ ◽  
E. S. KUZNETSOVA ◽  
V. A. KRYSKO
Keyword(s):  
Cylindrical Shell ◽  
Temperature Field ◽  
Cross Section ◽  
Circular Cross Section ◽  
The Novel ◽  
Fourier Methods ◽  
Constant Stiffness ◽  
Chaotic Vibrations ◽  
Qualitative Changes ◽  
Shell Dynamics

A closed cylindrical shell with circular cross-section having constant stiffness and density and subjected to sign changeable loading and embedded into a temperature field is analyzed. Both Bubnov–Galerkin (with a higher approximation) and Fourier methods are applied to solve the derived nonlinear nondimensional partial differential equations. Among others, the novel scenario of transition from shell harmonic to chaotic vibrations via the collapse of quasi-periodic vibrations with one independent frequency and Hopf bifurcation is detected, illustrated and discussed. In addition, it is shown how for various intensities of the temperature field (including its absence) the increase of the loading yields qualitative changes in the investigated shell dynamics, and how chaotic zones are transmitted into periodic ones and vice versa.

Structural bionic design for thin-walled cylindrical shell against buckling under axial compression

2011 ◽  
Vol 225 (11) ◽  
pp. 2619-2627 ◽  
Author(s):  
D Xing ◽  
W Chen ◽  
J Ma ◽  
L Zhao
Keyword(s):  
Cylindrical Shell ◽  
Axial Compression ◽  
Cross Section ◽  
Cylindrical Shells ◽  
High Load ◽  
Vascular Bundles ◽  
Bionic Design ◽  
Load Bearing ◽  
Thin Walled ◽  
The Cross

In nature, bamboo develops an excellent structure to bear nature forces, and it is very helpful for designing thin-walled cylindrical shells with high load-bearing efficiency. In this article, the cross-section of bamboo is investigated, and the feature of the gradual distribution of vascular bundles in bamboo cross-section is outlined. Based on that, a structural bionic design for thin-walled cylindrical shells is presented, of which the manufacturability is also taken into consideration. The comparison between the bionic thin-walled cylindrical shell and a simple hollow one with the same weight showed that the load-bearing efficiency was improved by 44.7 per cent.

Part V.

1938 ◽  
Vol 42 (328) ◽  
pp. 343-346
Keyword(s):  
Cross Section ◽  
Carrying Capacity ◽  
Local Buckling ◽  
Circular Cross Section ◽  
Load Carrying Capacity ◽  
Pure Bending ◽  
Longitudinal Stiffeners ◽  
Load Carrying

In the present paper two forms of instability of monocoque structures in pure bending have been discussed in extenso, viz., the flattening and the local buckling. For ease of calculation it is assumed that the structure is cylindrical, of circular cross section and consisting of a great number of evenly spaced uniform longitudinal stiffeners, denoted stringers and of several evenly spaced uniform transverse stiffeners, called rings. The applicability of the results obtained to practical fuselages of non-circular cross section and the effect of different neglections have been dealt with in §§15 and 20.I.—Preliminary to the discussion of the above problems, the results obtained by different authors concerning both the load carrying capacity of panels after buckling and the failure of stringers have been collected in Part I.

Combined Bending and Compression of a Pressurized Circular Cylindrical Membrane Column

1965 ◽  
Vol 87 (3) ◽  
pp. 372-378
Author(s):  
W. E. Jahsman
Keyword(s):  
Compressive Strength ◽  
Cross Section ◽  
Compressive Load ◽  
Circular Cross Section ◽  
Bending Moment ◽  
Maximum Load ◽  
Bending Moments ◽  
Lateral Deflection ◽  
The Cross

Load-lateral deflection curves are developed for a pressurized tube of circular cross section under combined bending and compression. The tube walls are assumed to have negligible compressive strength so that wrinkling develops if the stress tends to become negative. It is found that for a given bending moment, the load increases monotonically with deflection until a maximum is reached beyond which the load decreases with increasing deflection. An interaction curve of the maximum load versus bending moment shows that the presence of only a small amount of bending significantly decreases the maximum compressive load below the classical Euler load. Conversely, for bending moments which produce almost complete wrinkling of the cross section, only very small amounts of compressive load can be supported.

scholarly journals Accounting for the Scale Factor in Determining the Compressed Concrete Strength of Concrete-Filled Steel Tube Elements

2019 ◽  
Vol 278 ◽  
pp. 03003
Author(s):  
Elvira P. Chernyshova ◽  
Vladislav E. Chernyshov
Keyword(s):  
Experimental Data ◽  
Axial Compression ◽  
Cross Section ◽  
Concrete Strength ◽  
Circular Cross Section ◽  
Steel Tube ◽  
Scale Factor ◽  
Concrete Filled Steel Tube ◽  
New Formula

The published experimental data on the influence of the concrete samples dimensions on their strength under axial compression had been analyzed in the article. The mechanism of this influence is revealed from the positions of strength statistical theories. The known dependences are given and a new formula is proposed for taking into account the scale factor in determining the strength of compressed concrete. An algorithm for calculating the strength of centrally compressed concrete-filled steel tube elements (CFSTE) with a circular cross-section taking into account the scale factor is shown.

scholarly journals Numerical investigation of post-critical resistance of hollow circular cross-section bars under bending and axial compression

2020 ◽  
Vol 17 (5) ◽  
pp. 87-93
Author(s):  
A. I. Garipov ◽  
Keyword(s):  
Finite Element Method ◽  
Axial Compression ◽  
Cross Section ◽  
Laboratory Tests ◽  
Circular Cross Section ◽  
The Finite Element Method ◽  
Qualitative Comparison ◽  
Optimal Balance ◽  
Overall Buckling ◽  
Critical Resistance

Analysis results of hollow circular cross-section bars under bending and axial compression by the finite element method in different formulations with considering of overall buckling described. Qualitative comparison of the data obtained with the data of laboratory tests is made. Analysis parameters allowing achieving an optimal balance between analysis accuracy and speed are given.

scholarly journals Stability Of A Cylindrical Shell

2021 ◽  
Vol 03 (04) ◽  
pp. 166-171
Author(s):  
Shakhrukh Muratovich Davlyatov ◽  
◽  
Khusnitdin Akhrarovich Akramov ◽  
Keyword(s):  
Cylindrical Shell ◽  
Cross Section ◽  
Circular Cross Section ◽  
Loss Of Stability

Results of researches of stability of the cylindrical cover of circular cross section consisting of several layers at a zagruzheniye the external evenly distributed loading are given in this article. Settlement dependences are offered, critical loadings, opkredelena of a form of loss of stability of a cover are found.

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