Experimental studies on dynamic plastic buckling of circular cylindrical shells under axial impact

1999 ◽  
Vol 15 (3) ◽  
pp. 275-282 ◽  
Author(s):  
Ma Hongwei ◽  
Cheng Guoqiang ◽  
Zhang Shanyuan ◽  
Yang Guitong
Keyword(s):  
Cylindrical Shells ◽  
Experimental Studies ◽  
Plastic Buckling ◽  
Axial Impact ◽  
Circular Cylindrical Shells ◽  
Dynamic Plastic Buckling

Dynamic Plastic Buckling of Circular Cylindrical Shells Under Axial Impact

2000 ◽  
Vol 177-180 ◽  
pp. 721-726
Author(s):  
Hong Wei Ma ◽  
Guo Qiang Cheng ◽  
Shan Yuan Zhang ◽  
Gui Tong Yang
Keyword(s):  
Cylindrical Shells ◽  
Plastic Buckling ◽  
Axial Impact ◽  
Circular Cylindrical Shells ◽  
Dynamic Plastic Buckling

Investigation on the Influence of Stiffener Size on the Buckling Pressures of Circular Cylindrical Shells Under Hydrostatic Pressure

1962 ◽  
Vol 6 (03) ◽  
pp. 24-32
Author(s):  
James A. Nott
Keyword(s):  
Cylindrical Shells ◽  
High Strength ◽  
Plastic Buckling ◽  
Theoretical Derivation ◽  
Perfectly Plastic ◽  
Plastic Materials ◽  
Simple Support ◽  
Circular Cylindrical Shells ◽  
Support Conditions ◽  
Elastic Perfectly Plastic

A theoretical derivation is given for elastic and plastic buckling of stiffened, circular cylindrical shells under uniform external hydrostatic pressures. The theory accounts for variable shell stresses, as influenced by the circular stiffeners, and critical buckling pressures are obtained for simple support conditions at the shell-frame junctures. Collapse pressures for both elastic and plastic buckling are determined by iteration and numerical minimization. The theory is applicable to shells made either of strain-hardening or elastic-perfectly plastic materials. Using the developed analysis, it is shown that a variation in stiffener size can change the buckling pressures. Test data from high-strength steel and aluminum cylinders show agreement between the theoretical and experimental collapse pressures to within approximately six percent.

Experimental Study on Pre-Stressed Circular Cylindrical Shell

2012 ◽  
Author(s):  
Antonio Zippo ◽  
Marco Barbieri ◽  
Matteo Strozzi ◽  
Vito Errede ◽  
Francesco Pellicano
Keyword(s):  
Experimental Study ◽  
Cylindrical Shell ◽  
Axial Load ◽  
Nonlinear Vibrations ◽  
Circular Cylindrical Shell ◽  
Cylindrical Shells ◽  
Experimental Studies ◽  
Element Model ◽  
Experimental Setup ◽  
Circular Cylindrical Shells

In this paper an experimental study on circular cylindrical shells subjected to axial compressive and periodic loads is presented. Even though many researchers have extensively studied nonlinear vibrations of cylindrical shells, experimental studies are rather limited in number. The experimental setup is explained and deeply described along with the analysis of preliminary results. The linear and the nonlinear dynamic behavior associated with a combined effect of compressive static and a periodic axial load have been investigated for different combinations of loads; moreover, a non stationary response of the structure has been observed close to one of the resonances. The linear shell behavior is also investigated by means of a finite element model, in order to enhance the comprehension of experimental results.

Experimental Studies on the Buckling Under Axial Compression of Integrally Stringer-Stiffened Circular Cylindrical Shells

1977 ◽  
Vol 44 (4) ◽  
pp. 721-730 ◽  
Author(s):  
T. Weller ◽  
J. Singer
Keyword(s):  
Mechanical Properties ◽  
Linear Theory ◽  
Axial Compression ◽  
Cylindrical Shells ◽  
Experimental Studies ◽  
Inelastic Behavior ◽  
Shell Material ◽  
Stiffened Shells ◽  
Circular Cylindrical Shells ◽  
Shell Geometry

An experimental study of the buckling of closely spaced integrally stringer-stiffened circular cylindrical shells under axial compression was carried out to determine the influence of stiffener and shell geometry, as well as mechanical properties of shell material, on the applicability of linear theory. Tests included 84 shells made of two different kinds of steel with completely different mechanical properties and 74 shells made of 7075-T6 Aluminum alloy. Agreement between linear theory and experiments was found to be governed primarily by shell geometry, Z, where for Z > 1000 values of “linearity” (ratio of experimental buckling load to the predicted one) of 70 percent and considerably above were obtained. Correlation with linear theory was also found to be affected by stringer area parameter (A1/bh) where for (A1/bh) > 0.45 the values of linearity obtained exceeded 65 percent and usually were much higher. No significant effect of other stiffener and shell parameters on the applicability of linear theory could be discerned for the specimens tested. The boundary conditions were found to be of importance and for some steel shells the inelastic behavior of the shell material was found to have a considerable effect on the linearity. Predictions of imperfection sensitivity studies could not be correlated with test results. By a conservative structural efficiency criterion all the tested stringer-stiffened shells were found to be more efficient than equivalent weight isotropic shells.

Dynamic plastic buckling of copper cylindrical shells

1991 ◽  
Vol 27 (1) ◽  
pp. 89-103 ◽  
Author(s):  
A.L. Florence ◽  
P.R. Gefken ◽  
S.W. Kirkpatrick
Keyword(s):  
Cylindrical Shells ◽  
Plastic Buckling ◽  
Dynamic Plastic Buckling
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