Browse > Article
http://dx.doi.org/10.1016/j.ijnaoe.2018.03.003

Probabilistic estimates of corrosion rate of fuel tank structures of aging bulk carriers  

Ivosevic, Spiro (University of Montenegro, Maritime Faculty Kotor)
Mestrovic, Romeo (University of Montenegro, Maritime Faculty Kotor)
Kovac, Natasa (University Donja Gorica, Faculty of Applied Sciences)
Publication Information
International Journal of Naval Architecture and Ocean Engineering / v.11, no.1, 2019 , pp. 165-177 More about this Journal
Abstract
This paper considers corrosion wastage of two ship hull structure members as a part of investigated fuel oil tanks of 25 aging bulk carriers. Taking into account that many factors which influence corrosion wastage of ship hull structures are of uncertain nature, the related corrosion rate ($c_1$) is considered here as a real-valued continuous distribution, assuming that the corrosion wastage starts after 5, 6 or 7 years. In all considered cases, by using available data and applying three basic statistical tests, it is established that between two-parameter continuous distributions, normal, Weibull and logistic distributions are best fitted distributions for the mentioned corrosion rate ($c_1$). Note that the presented statistical, numerical and graphical results concerning two mentioned ship hull structure members allow to compare and discuss the corresponding probabilistic estimates for the corrosion rate ($c_1$).
Keywords
Bulk carriers; Fuel tanks; Inner bottom plates; Side watertight girder; Corrosion rate; Depth of corrosion; Normal distribution; Weibull distribution; Logistic distribution;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Paik, J.K., Lee, J.M., Park, Y.I., Hwang, J.S., Kim, C.W., 2003b. Time-variant ultimate longitudinal strength of corroded bulk carriers. Mar. Struct. 16, 567-600.   DOI
2 Paik, J.K., Thayamballi, A.K., 2002. Ultimate strength of aging ships. J. Eng. Marit. Environ. 1 (1), 57-77.
3 Paik, J.K., Thayamballi, A.K., Park, Y.I., Hwang, J.S., 2003c. A time-dependent corrosion wastage model for bulk Carrier structures. Int. J. Marit. Eng. 145 (Part A2), 61-87.
4 Paik, J.K., Wang, G., Thayamballi, A.K., Lee, J.M., Park, Y.I., 2003a. Time-dependent risk assessment of aging ships accounting for general/pit corrosion, fatigue cracking and local denting damage. Tran. SNAME 111, 159-197.
5 Pollard, R.R., 1991. Evaluation of Corrosion Damage in Crude and Product Carriers. Report No. SMP-I. Department of Naval Architecture & Offshore Engineering, University of California, Berkeley, p. 67.
6 Qin, S., Cui, W., 2003. Effect of corrosion models on the time-dependent reliability of steel plated elements. Mar. Struct. 16, 15-34.   DOI
7 RINA, 2004. Guide for the Structural Design of Oil Tankers. Registro Italiano Navale.
8 Viner, A.C., Tozer, D.R., 1985. Influence of Corrosion on Ship Structural Performance, Hull New Construction Division No. 85/29. Lloyd's Register of Shipping.
9 Yamamoto, N., Ikegami, K., 1996. A study on the degradation of coating and corrosion of ship's hull based on the probabilistic approach. In: Proceedings of the International Offshore Mechanics and Arctic Engineering Symposium (OMAE'96), vol. 2, pp. 159-166.
10 Yamamoto, N., Kumano, A., Matoba, M., 1994. Effect of corrosion and its protection on hull strength (2nd report). J. Soc. Nav. Archit. Jpn. 176, 281-289.   DOI
11 Gudze, M.T., Melchers, R.E., 2006. Prediction of naval ship ballast tank corrosion using operational profiles. Int. J. Marit. Eng. 148. Part A3.
12 Gardiner, C.P., 1999. Corrosion Analysis of Bulk Carriers. PhD Thesis. The University of Newcastle, NSW, Australia.
13 Gardiner, C.P., Melchers, R.E., 2003. Corrosion analysis of bulk carriers, Part I: operational parameters influencing corrosion rates. Mar. Struct. 16, 547-566.   DOI
14 Gudze, M.T., Melchers, R.E., 2008. Operational based corrosion analysis in naval ships. Corrosion Sci. 50 (12), 3296-3307.   DOI
15 Guedes Soares, C., Garbatov, Y., 1996. Reliability of maintained ship hulls subjected to corrosion. J. Ship Res. 40 (3), 235-243.   DOI
16 Guedes Soares, C., Garbatov, Y., 1998a. Reliability of maintained ship hull girders subjected to corrosion and fatigue. Struct. Saf. 20, 201-219.   DOI
17 Guedes Soares, C., Garbatov, Y., 1998b. Reliability of plate elements subjected to compressive loads and accounting for corrosion and repair. In: Shiraishi, N., Shinozuka, M.,Wen, Y.K. (Eds.), Structural Safety and Reliability, vol. 3. Balkema, Rotterdam, pp. 2013-2020.
18 Ivosevic, S., 2012. PhD Thesis, University of Montenegro, Maritime Faculty Kotor, Kotor, Montenegro.
19 Guedes Soares, C., Garbatov, Y., 1999. Reliability of maintained ship hulls subjected to corrosion and fatigue under combined loading. J. Constr. Steel Res. 52, 93-115.   DOI
20 Guedes Soares, C., Garbatov, Y., Zayed, A., 2011. Effect of environmental factors on steel plate corrosion under marine immersion conditions, Corrosion Engineering. Sci. Technol. 46, 524-541.   DOI
21 Ivosevic, S., Mestrovic, R., Kovac, N., 2017. An approach to the probabilistic corrosion rate estimation model for inner bottom plates of bulk carriers. Brodogradnja/Shipbuilding 68 (4), 57-70.
22 Jurisic, P., Parunov, J., Garbatov, Y., 2014. Comparative analysis based on two nonlinear corrosion models commonly used for prediction of structural degradation of oil tankers. Trans. FAMENA 38 (2), 21-30.
23 Jurisic, P., Parunov, J., Garbatov, Y., 2017. Aging effects on ship structural integrity. Brodogradnja 68 (2), 15-28, 2017.   DOI
24 Melchers, R.E., 2003. Probabilistic model for marine corrosion of steel for structural reliability assessment. J. Struct. Eng. 129 (11), 1484-1493.   DOI
25 Paik, J.K., 2004. Corrosion analysis of seawater ballast tank structures. Int. J. Marit. Eng. 146 (Part A1), 1-12.
26 Paik, J.K., Kim, S.K., Lee, S.K., 1998. Probabilistic corrosion rate estimation model for longitudinal strength members of bulk carriers. Ocean Eng. 25 (10), 837-860.   DOI
27 Venkatesan, R., 2000. Studies on Corrosion of Some Structural Materials in Deep Sea Environment. Dissertation. Indian Institute of Science, Bangalores.
28 Paik, J.K., Thayamballi, A.K., Park, Y.I., Hwang, J.S., 2004. A time-dependent corrosion wastage model for seawater ballast tank structures of ships. Corrosion Sci. 46 (2), 471-486.   DOI