Buckling Reliability Analysis for the Cylindrical Shell with Initial Defects

Hai An; Wei Guang An; Yuan Yin Gao; Xiang Hua Song

doi:10.4028/www.scientific.net/KEM.525-526.101

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Simulation of Spall Fracture Based on Material Point Method
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HomeKey Engineering MaterialsKey Engineering Materials Vols. 525-526Buckling Reliability Analysis for the Cylindrical...

Buckling Reliability Analysis for the Cylindrical Shell with Initial Defects

Abstract:

in this paper, the asymptotic expression of the buckling critical load coefficient of the thin cylindrical shell with local axial symmetry initial defects under the axial loads is deduced by used the Karman-Donnel Equation. The buckling safety margin equation of the cylindrical shell with initial defects is constructed. Furthermore, the buckling reliability index is solved by used AFOSM (Advanced First-Order Second Moment) method. In the end, a numerical example is given to analyze the influence of the band width and amplitude of local axial symmetry initial defects on the structural buckling reliability index.

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Periodical:

Key Engineering Materials (Volumes 525-526)

Pages:

101-104

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.525-526.101

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Online since:

November 2012

Authors:

Hai An, Wei Guang An, Yuan Yin Gao, Xiang Hua Song

Keywords:

AFOSM, Buckling Critical Load Coefficient, Buckling Reliability Analysis, Local Axial Symmetry Initial Defects

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References

[1] Amazigo, J. C. and Budiansky, B., Asymptotic formulas for the buckling stresses of axially compressed cylinders with localized or random axisymmetric imperfections, J. Appl. Mech., 1972, Vol. 39, P. 179-184.

DOI: 10.1115/1.3422608

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[2] An Wei-guang, Cai Yin-lin, Chen wei-dong: Reliability analysis and optimum design for stochastic structure systems, (Harbin Engineering University Press, China 2005). (in chinese).

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