Post-buckling behavior of stiffened cylindrical shell and experimental validation under non-uniform external pressure and axial compression

2021 ◽  
Vol 161 ◽  
pp. 107481
Author(s):  
Bo Wang ◽  
Musen Yang ◽  
Dujuan Zeng ◽  
Peng Hao ◽  
Gang Li ◽  
...  
Keyword(s):  
Cylindrical Shell ◽  
Axial Compression ◽  
Experimental Validation ◽  
External Pressure ◽  
Uniform External Pressure ◽  
Stiffened Cylindrical Shell ◽  
Buckling Behavior ◽  
Post Buckling

Delamination Suppression in Sandwich Beams Using Translaminar Reinforcements

1999 ◽  
Author(s):  
Brian T. Wallace ◽  
Bhavani V. Sankar ◽  
Peter G. Ifju
Keyword(s):  
Axial Compression ◽  
Sandwich Beam ◽  
Sandwich Beams ◽  
Thickness Direction ◽  
Compression Tests ◽  
Honeycomb Core ◽  
Element Analysis ◽  
Buckling Loads ◽  
Buckling Behavior ◽  
Post Buckling

Abstract The present study is concerned with translaminar reinforcement in a sandwich beam for preventing buckling of a delaminated face-sheet under axial compression. Graphite/epoxy pins are used as reinforcement in the thickness direction of sandwich beams consisting of graphite/epoxy face-sheets and a Aramid honeycomb core. Compression tests are performed to understand the effects of the diameter of the reinforcing pins and reinforcement spacing on the ultimate compressive strength of the delaminated beams. A finite element analysis is performed to understand the effects of translaminar reinforcement on the critical buckling loads and post-buckling behavior of the sandwich beam under axial compression.

Post-buckling Behavior of Stiffened Cross-Ply Cylindrical Shells

1994 ◽  
Vol 61 (4) ◽  
pp. 998-1000 ◽  
Author(s):  
M. Savoia ◽  
J. N. Reddy
Keyword(s):  
Axial Compression ◽  
Carrying Capacity ◽  
Shell Theory ◽  
Load Carrying Capacity ◽  
Imperfection Sensitivity ◽  
Buckling Modes ◽  
Geometric Imperfection ◽  
Buckling Behavior ◽  
Load Carrying ◽  
Post Buckling

The post-buckling of stiffened, cross-ply laminated, circular determine the effects of shell lamination scheme and stiffeners on the reduced load-carrying capacity. The effect of geometric imperfection is also included. The analysis is based on the layerwise shell theory of Reddy, and the “smeared stiffener” technique is used to account for the stiffener stiffness. Nu cylinders under uniform axial compression is investigated to merical results for stiffened and unstiffened cylinders are presented, showing that imperfection-sensitivity is strictly related to the number of nearly simultaneous buckling modes.

Comment on Ross: “Design of Dome Ends to Withstand Uniform External Pressure”

1989 ◽  
Vol 33 (04) ◽  
pp. 326-326
Author(s):  
C. G. Nandakumar ◽  
K. Rajagopalan
Keyword(s):  
Cylindrical Shell ◽  
External Pressure ◽  
Spherical Cap ◽  
Uniform External Pressure ◽  
Submarine Hull

The instability pressure for a spherical cap that is used as the end closure for the submarine hull is found to be less than that of a cylindrical shell hull. Hence the new proposal for substituting an inverted dome in lieu of the spherical cap for the end closure is eminently worthwhile.

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.

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