Effect of Weld on Axial Buckling of Cylindrical Shells

Zhou Fang; Zhi Ping Chen; Chu Lin Lu; Ming Zeng

doi:10.4028/www.scientific.net/AMR.139-141.171

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 139-141Effect of Weld on Axial Buckling of Cylindrical...

Effect of Weld on Axial Buckling of Cylindrical Shells

Abstract:

Large oil storage tank (oil tank for short) shells are vulnerable to buckling damage when suffering the seismic loads. Numerical simulation analysis was taken to estimate the effects of the weld form, number and their location to axial buckling stress of cylindrical shells, considering not only the characteristic of welding processes, but also the effects probably caused by magnitude of residual stress and deformation on elephant foot buckling to oil tanks. It is revealed that the existence of circumferential welds had obvious negative effect on axial buckling critical stress compared with the structure without welds, while the effects of weld number and location were not as much; longitudinal welds had no visible effect on axial buckling critical stress; controlling the residual stress and deformation range caused by circumferential welds should be the key point during the tanks welding process.

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Periodical:

Advanced Materials Research (Volumes 139-141)

Pages:

171-175

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.139-141.171

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Online since:

October 2010

Authors:

Zhou Fang, Zhi Ping Chen, Chu Lin Lu, Ming Zeng

Keywords:

Elephant Foot Buckling, Large Oli Storage Tank, Numerical Simulation Analysis, Residual Stress, Weld

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References

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