[1] Lu Shengzhuo, Wang Wei,. Dynamic response of fixed-roof oil-storage tank structureunder blast loading [J]. Journal of Southeast University (English Edition), 2012, 28 (1): 58-63. [doi:10.3969/j.issn.1003-7985.2012.01.011]

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Dynamic response of fixed-roof oil-storage tank structureunder blast loading()

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Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]

Volumn:

28

Issue:

2012 1

Page:

58-63

Research Field:

Mathematics, Physics, Mechanics

Publishing date:

2012-03-30

Info

Title:

Dynamic response of fixed-roof oil-storage tank structureunder blast loading

Author(s):

Lu Shengzhuo;  Wang Wei

College of Civil Engineering, University of Harbin Institute of Technology, HarBin 150090, China

Keywords:

fixed-roof oil-storage tank;  combustible gas explosion;  numerical simulation and analysis;  impact loading;  dynamic strain

PACS:

O382

DOI:

10.3969/j.issn.1003-7985.2012.01.011

Abstract:

In order to investigate the damage and deformation mechanism of large scale steel fixed-roof oil-storage tanks under the combustible gas explosion, a series of explosion experiments of scaled models are conducted. The 1∶25 scaled numerical models of oil-storage tanks with a capacity of 5 000 m³ are also set up by ANSYS/LS-DYNA software, and their damage processes under the blast impact are numerically simulated. Both the experimental results and the numerical simulations show that the blast loading curve displays a pressure jump instantaneously at the moment of contact with the experimental models, and the overpressure peaks at the stagnation area of the outer surface on the blast side. The yield range first appears at the stagnation area and then propagates to the neighboring parts, and the irregular plastic hinge circle obviously appears around the deformation area, which results in the concaved buckling of the tank inner surface. During the whole process, the inner liquid not only impacts on the structures, but also absorbs and consumes part of the blast energy.

References:

[1] Bjerketvedt D, Bakke J R, van Wingerden K. Gas explosion handbook [J]. Journal of Hazardous Material, 1997, 52(1):50-72.
[2] Sari A, Whitney M, Sawruk W. Blast analysis and retrofit of structures in industrial facilities [C]//Proceedings of the 2009 Structures Congress—Don’t Mess with Structural Engineers: Expanding Our Role. Austin, TX, USA, 2009:2075-2076.
[3] Baker D D. Advanced analysis topics for blast resistant buildings in petrochemical facilities[C]//Proceedings of the 2008 Structures Congress—Structures Congress 2008: Crossing the Borders. Vancouver, BC, Canada, 2008.
[4] Liu Xinyu, Ma Linjian, Ma Shuna. Model experiment on force characteristic of soil-embedded steel oil-tank under nuclear explosion [J]. Journal of PLA University of Science and Technology: Natural Science Edition, 2009, 10(2):175-178.(in Chinese)
[5] Liu Xinyu, Qiu Xuguang, Zhang Chuan. Computation method of dynamic loads of underground steel cylindrical shell under nuclear explosion [J]. Journal of PLA University of Science and Technology: Natural Science Edition, 2006, 7(4):360-364.(in Chinese)
[6] Pan Xuhai, Xu Jin, Jiang Juncheng, et al. Simulation analysis of dynamic response of thin-wall cylindrical tank to shock wave. [J]. Journal of Chemical Industry and Engineering, 2008, 59(3):798-801.(in Chinese)
[7] Lu Shengzhuo, Wei Wang. Study of destruction mechanism of floating-roof oiltank under combustible gaseous explosion in a small scale experiment [J]. Applied Mechanics and Materials, 2012, 137: 65-71.
[8] Lu Shengzhuo, Wang Wei, Zhang Boyi, et al. Experimental research on destruction mechanism of large-scale floating-roof oil tank under blast loading. [J]. Explosion and Shock Waves, 2011, 31(2):158-164.(in Chinese)

Memo

Memo:

Biographies: Lu Shengzhuo(1982—), male, graduate; Wang Wei(corresponding author), male, doctor, professor, wwang@hit.edu.cn.
Foundation item: The National Natural Science Foundation of China(No.51078115).
Citation: Lu Shengzhuo, Wang Wei. Dynamic response of fixed-roof oil-storage tank structure under blast loading[J].Journal of Southeast University(English Edition), 2012, 28(1):58-63.[doi:10.3969/j.issn.1003-7985.2012.01.011]

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