Influence of a Flexible Coating on the Strength of a Shallow Cylindrical Shell with Longitudinal Crack

2019 ◽  
Vol 238 (2) ◽  
pp. 165-173 ◽  
Author(s):  
І. P. Shats’kyi ◽  
М. V. Makoviichuk ◽  
А. B. Shcherbii
Keyword(s):  
Cylindrical Shell ◽  
Longitudinal Crack ◽  
Shallow Cylindrical Shell ◽  
Flexible Coating

Asymptotic Evaluation of a Combined Stress-Intensity Factor for a Pressurized Cylindrical Shell Containing a Longitudinal Crack

1980 ◽  
Vol 47 (3) ◽  
pp. 583-585 ◽  
Author(s):  
J. W. Nicholson ◽  
M. R. Bradley ◽  
C. K. Carrington
Keyword(s):  
Stress Intensity Factor ◽  
Cylindrical Shell ◽  
Stress Intensity ◽  
Intensity Factor ◽  
Asymptotic Form ◽  
Longitudinal Crack ◽  
Asymptotic Formulas ◽  
Combined Stress ◽  
Isotropic Cylindrical Shell ◽  
Asymptotic Evaluation

Sanders’ path-independent energy-release-rate integral I for a cracked shallow shell is used to compute the asymptotic form of the combined stress-intensity factor for a pressurized elastically isotropic cylindrical shell containing a longitudinal crack. The combined stress-intensity factor is expressible in terms of the conventional stretching and bending stress-intensity factors and is a function of Poisson’s ratio v and a dimensionless crack length λ. When λ is small the shell is nearly flat and when λ is large the shell is very thin. Asymptotic formulas for I when λ is small or large are obtained. A numerical solution for λ = 0(1) is also obtained.

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