Buckling of thin-walled cylindrical shells made of mild steel due to vacuum and its prevention-experimental study

2021 ◽  
Author(s):  
M. Ashiqur Rahman ◽  
Md. Rifat Hossain ◽  
Hasibul Ameen
Keyword(s):  
Experimental Study ◽  
Mild Steel ◽  
Cylindrical Shells ◽  
Thin Walled

Buckling behaviors of thin-walled cylindrical shells under localized axial compression loads, Part 1: Experimental study

2021 ◽  
Vol 166 ◽  
pp. 108118
Author(s):  
Peng Jiao ◽  
Zhiping Chen ◽  
He Ma ◽  
Peng Ge ◽  
Yanan Gu ◽  
...  
Keyword(s):  
Experimental Study ◽  
Axial Compression ◽  
Cylindrical Shells ◽  
Thin Walled

Experimental Study of Pressure Vessel Models Having Fabrication Flaws

1975 ◽  
Vol 42 (2) ◽  
pp. 335-340 ◽  
Author(s):  
R. L. Sendelbeck ◽  
O. Ljungstro¨m ◽  
B. Ljungstro¨m ◽  
N. J. Hoff
Keyword(s):  
Experimental Study ◽  
Wall Thickness ◽  
Pressure Vessel ◽  
Cylindrical Shells ◽  
Bursting Pressure ◽  
Circular Cylindrical Shells ◽  
Thin Walled

Experiments were carried out with 22 thin-walled circular cylindrical shells provided with localized inaccuracies representing weld flaws. It was found that along a girth weld a misalignment of the midsurfaces of the curved sheets of which the shell is welded together causes little reduction in the bursting pressure of the shell even if the misalignment amounts to three or four times the wall thickness.

scholarly journals Fracture Mechanical Analysis of Thin-Walled Cylindrical Shells with Cracks

Metals ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 592
Author(s):  
Feng Yue ◽  
Ziyan Wu
Keyword(s):  
Fracture Mechanics ◽  
Tensile Stress ◽  
Failure Modes ◽  
Cylindrical Shells ◽  
Crack Tip ◽  
Mechanical Analysis ◽  
J Integral ◽  
Thin Walled Structures ◽  
Circumferential Tensile Stress ◽  
Thin Walled

The fracture mechanical behaviour of thin-walled structures with cracks is highly significant for structural strength design, safety and reliability analysis, and defect evaluation. In this study, the effects of various factors on the fracture parameters, crack initiation angles and plastic zones of thin-walled cylindrical shells with cracks are investigated. First, based on the J-integral and displacement extrapolation methods, the stress intensity factors of thin-walled cylindrical shells with circumferential cracks and compound cracks are studied using linear elastic fracture mechanics, respectively. Second, based on the theory of maximum circumferential tensile stress of compound cracks, the number of singular elements at a crack tip is varied to determine the node of the element corresponding to the maximum circumferential tensile stress, and the initiation angle for a compound crack is predicted. Third, based on the J-integral theory, the size of the plastic zone and J-integral of a thin-walled cylindrical shell with a circumferential crack are analysed, using elastic-plastic fracture mechanics. The results show that the stress in front of a crack tip does not increase after reaching the yield strength and enters the stage of plastic development, and the predicted initiation angle of an oblique crack mainly depends on its original inclination angle. The conclusions have theoretical and engineering significance for the selection of the fracture criteria and determination of the failure modes of thin-walled structures with cracks.

scholarly journals Experimental Study on The Flexural Capacity of Cold-Formed Thin-Walled Composite Wall

2020 ◽  
Vol 455 ◽  
pp. 012060
Author(s):  
Quan Wang ◽  
Guohua Li ◽  
Yanqiang Di ◽  
Yuxia Zhang ◽  
Zhijie Zhang ◽  
...  
Keyword(s):  
Experimental Study ◽  
Flexural Capacity ◽  
Composite Wall ◽  
Thin Walled
Sign in / Sign up

Export Citation Format

Share Document