Sensitivity Analysis of Stress State of Welded Tanks

Abstract:

This article focuses on the reliability analysis of a welded cylindrical tank, which is used for the storage of crude oil. The dominant load case is loading of the inner shell by hydrostatic pressure of the crude oil. Stochastic sensitivity analysis was used to study the effect of the variability of the thickness of the ith course on the stress state of adjacent courses. The computational model was developed in the programme ANSYS. Meshing was performed using SHELL181 elements. The Latin Hypercube Sampling method was implemented during analysis. Sensitivity analysis based on the evaluation of the correlation between the random plate thicknesses and the stress state was performed.

• Periodical: Applied Mechanics and Materials (Volume 769)
• Pages: 3-8
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.769.3
• Online since: June 2015
• Authors: Zdenek Kala*, Jakub Gottvald, Jakub Stonis, Stanislav Vejvoda, Abayomi Omishore
• Keywords: Crude Oil, Design, Failure, Reliability, Safety, Sensitivity, Stress, Tank

References

[1] Z. Kala, J. Gottvald, J. Stonis, A. Omishore, Sensitivity analysis of the stress state in shell courses of welded tanks for oil storage, Engineering Structures and Technologies, 6 (2014) 7–12.

DOI: 10.3846/2029882x.2014.957899

[2] ANSYS, Theory Release 14. 5, 2012, ANSYS Inc.

[3] J. Melcher, Z. Kala, M. Holicky, M. Fajkus, L. Rozlivka, Design characteristics of structural steels based on statistical analysis of metallurgical products, Journal of Constructional Steel Research, 60 (2004) 795–808.

DOI: 10.1016/s0143-974x(03)00144-5

[4] M.D. McKey, W.J. Conover, R.J. Beckman, A comparison of the three methods of selecting values of input variables in the analysis of output from a computer code, Technometrics, 21 (1979) 239–245.

DOI: 10.1080/00401706.1979.10489755

[5] R.C. Iman, W.J. Conover, Small sample sensitivity analysis techniques for computer models with an application to risk assessment, Communications in Statistics – Theory and Methods, 9 (1980) 1749–1842.

DOI: 10.1080/03610928008827996

[6] W. Brzakala, A. Herbut, A conditional stochastic projection method applied to a parametric vibrations problem, Journal of Civil Engineering and Management, 20 (2014) 810-818.

DOI: 10.3846/13923730.2014.914105

[7] J. Gottvald, Z. Kala, Sensitivity analysis of tangential digging forces of the bucket wheel excavator SchRs 1320 for different terraces, Journal of Civil Engineering and Management, 18 (2012) 609–620.

DOI: 10.3846/13923730.2012.719836

[8] Z. Kala, Elastic lateral-torsional buckling of simply supported hot-rolled steel I-beams with random imperfections, Procedia Engineering, 57 (2013) 504–514.

DOI: 10.1016/j.proeng.2013.04.065

[9] J. Kralik, J. Kralik, Probability assessment of analysis of high-rise buildings seismic resistance, Advanced Materials Research, 712–715 (2013) 929–936.

DOI: 10.4028/www.scientific.net/amr.712-715.929

[10] M. Krejsa, P. Janas, R. Cajka, Using DOProC method in structural reliability assessment, Applied Mechanics and Materials, 300–301 (2013) 860–869.

DOI: 10.4028/www.scientific.net/amm.300-301.860

[11] M.M. Kaminski, M.T. Strakowski, On the least squares stochastic finite element analysis of the steel skeletal towers exposed to fire, Archives of Civil and Mechanical Engineering, 13 (2013) 242–253.

DOI: 10.1016/j.acme.2012.12.002

[12] M. Kaminski, P. Swita, Structural stability and reliability of the underground steel tanks with the Stochastic Finite Element Method, Archives of Civil and Mechanical Engineering. (in press). http: /dx. doi. org/10. 1016/j. acme. 2014. 04. 010.

DOI: 10.1016/j.acme.2014.04.010

[13] B. Long, B. Garner, Guide to storage tanks and equipment, Wiley, 2004, p.588.

[14] J. Amsiejus, N. Dirgelienen, A. Norkus, S. Skuodis, Comparison of sandy soil shear strength parameters obtained by various construction direct shear apparatuses, Archives of Civil and Mechanical Engineering, 14 (2014) 327–334.

DOI: 10.1016/j.acme.2013.11.004

[15] A. Jokubaitis, J. Valivonis, A. Zubrus, The influence of prestress losses on the anchorage zone of prestressed concrete member, Engineering Structures and Technologies, 6 (2014) 25–32.

DOI: 10.3846/2029882x.2014.957902

[16] Z. Kala, J. Kala, Sensitivity analysis of stability problems of steel structures using shell finite elements and nonlinear computation methods, AIP Conference Proceedings, 1389 (2011) 1865–1868.

DOI: 10.1063/1.3636974

[17] K. Kelevisius, L. Gabrielaitis, J. Amsiejus, A. Norkus, Z. Sikora, Study of bearing capacity of vibratory pile applying acceleration record, Journal of Civil Engineering and Management, 20 (2014) 142–148.

DOI: 10.3846/13923730.2013.870089

[18] S. Kildiene, E. K Zavadskas, J. Tamosaitiene, Complex assessment model for advanced technology deployment, Journal of Civil Engineering and Management, 20 (2014) 280–290.

DOI: 10.3846/13923730.2014.904813

[19] P. Padevet, O. Zobal, Influence of humidity on the material properties of cement paste with fly ash in the mutual relation 50/50, Applied Mechanics and Materials, 486 (2014) 327–332.

DOI: 10.4028/www.scientific.net/amm.486.327

[20] E. Siozinyte, J. Antucheviciene, V. Kutut, Upgrading the old vernacular building to contemporary norms: multiple criteria approach, Journal of Civil Engineering and Management, 20 (2014) 291–298.

DOI: 10.3846/13923730.2014.904814