International Journal of Naval Architecture and Ocean Engineering

  • 제7권3호
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  • Pages.509-525
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  • 2015
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  • 2092-6782(pISSN)
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  • 2092-6790(eISSN)
대한조선학회 (The Society of Naval Architects of Korea)
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Ultimate strength of stiffened plates with pitting corrosion

  • Rahbar-Ranji, Ahmad (Department of Ocean Engineering, Amirkabir University of Technology) ;
  • Niamir, Nabi (Department of Ocean Engineering, Amirkabir University of Technology) ;
  • Zarookian, Arvin (Department of Ocean Engineering, Amirkabir University of Technology)
  • 투고 : 2014.09.02
  • 심사 : 2015.03.19
  • 발행 : 2015.05.31
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초록

Predicting residual strength of corroded plates is of crucial importance for service life estimation of aged structures. A series of nonlinear finite element method is employed for ultimate strength analysis of stiffened plates with pitting corrosion. Influential parameters, including plate thickness, type and size of stiffeners, pit depth and degree of pitting are varied and more than 208 finite element models are analyzed. It is found that ultimate strength is reduced by increasing pit depth to thickness ratio. Thin and intermediate plates have minimum and maximum reduction of ultimate strength with stronger stiffeners, respectively. In weak stiffener, reduction of ultimate strength in thin and intermediate plates depends on DOP. Reduction of ultimate strength in thick plates depends on thickness of plate and DOP. For intermediate plates, reduction for all stiffeners regardless of shape and size are the same.

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참고문헌

  1. Chapkis, D.T., 1967. Simulation of pitting corrosion of hull plating under static loading. Trudy TSNIIMF, 82, pp.34-50.
  2. Eslami majd, A. and Rahbar-Ranji, A., 2014. Deformation behavior of corroded plates subjected to blast loading. Ship and Offshore structures, 10 (1), pp.79-93. https://doi.org/10.1080/17445302.2014.889371
  3. Nakai, T., Matsushita, H. and Yamamoto, N., 2004. Effect of pitting corrosion on local strength of hold frames of the bulk carriers (2nd report)-lateral distortional buckling and local face buckling. Marine Structures, 17, pp.612-641. https://doi.org/10.1016/j.marstruc.2005.03.001
  4. Nakai, T., Matsushita, H. and Yamamoto, N., 2005. Pitting corrosion and its influence on local strength of hull structural members. 24th international conference on offshore mechanics and arctic engineering, Halkidiki, Greece, 12-17 June 2005.
  5. Ok, D., Pu, Y. and Incecik, A., 2007. Computation of ultimate strength of locally corroded unstiffened plates under uniaxial compression. Marine Structures, 20(1-2), pp.100-114. https://doi.org/10.1016/j.marstruc.2007.02.003
  6. Paik, J.K., Lee, J.M., and Ko, M.J., 2003. Ultimate compressive strength of plate elements with pit corrosion wastage. Journal of Engineering for the Maritime Environment, 217(M4), pp.185-200.
  7. Paik, J.K. and Kim, B.J., 2002. Ultimate strength formulations for stiffened panels under combined axial load, in-plane bending and lateral pressure: a benchmark study. Thin-Walled Structures, 40(1), pp.45-83. https://doi.org/10.1016/S0263-8231(01)00043-X
  8. Paik J.K., Lee, J.M. and Ko, M.J., 2004. Ultimate shear strength of plate elements with pit corrosion wastage. Thin-Walled Structures, 42, pp.1161-1176. https://doi.org/10.1016/j.tws.2004.03.024
  9. Paik, J.K., Kim, B.J. and Seo, J.K., 2008. Methods for ultimate limit state assessment of ships and ship-shaped offshore structures: Part II stiffened panels. Ocean Engineering, 35(2), pp.271-280. https://doi.org/10.1016/j.oceaneng.2007.08.007
  10. Rahbar-Ranji, A., 2001. Stress analysis of a randomly undulated plate due to corrosion in marine structures. Ph.D. Thesis, Yokohama National University, Department of Naval Architecture.
  11. Rahbar-Ranji, A., 2012. Ultimate strength of corroded steel plates with irregular surfaces under in-plane compression. Ocean Engineering, 54, pp.261-269. https://doi.org/10.1016/j.oceaneng.2012.07.030
  12. Rahbar-Ranji, A., 2013. Elastic buckling strength of corroded steel plates. Sadhana-Academy Proceedings in Engineering Sciences, 38(1), pp.89-99.
  13. Rahbar-Ranji, A., 2014. Buckling analysis of partially corroded steel plates with irregular surfaces Sadhana-Academy Proceedings in Engineering Sciences, 39(2), pp.511-524.
  14. TSCF, 1993. Guidelines for the inspection and condition assessment of tanker structure. Tanker Structure Co-operative Forum.
  15. Yao, T., Fujikubo, M. and Yanagihara, D., 1998. On loading and boundary conditions for buckling/plastic collapse analysis of continuous stiffened plate by FEM. Proceedings of the 12th Asian technical exchange and advisory meeting on marine structures, Kanazawa, 6-9 July 1998, pp.305-14.
  16. Yikun, W., Julian, A., Wharton, R. and Ajit, S., 2014. Ultimate strength analysis of aged steel-plated structures exposed to marine corrosion damage: a review. Corrosion marine corrosion damage: a review. Corrosion Science, 86, pp.42-60. https://doi.org/10.1016/j.corsci.2014.04.043

피인용 문헌

  1. A Computational Investigation of the Group Effect of Pits on the Ultimate Strength of Steel Plates vol.32, pp.6, 2015, https://doi.org/10.1007/s13344-018-0068-z
  2. Towards a unified formulation for the ultimate strength assessment of uncorroded and pitted platings under uniaxial compression vol.169, pp.None, 2015, https://doi.org/10.1016/j.oceaneng.2018.08.042
  3. Ultimate Strength of Pit Corrosion Damnification on Pressure-Resistant Shells of Underwater Glider vol.2019, pp.None, 2015, https://doi.org/10.1155/2019/4323127
  4. An advanced technique to predict time-dependent corrosion damage of onshore, offshore, nearshore and ship structures: Part I = generalisation vol.12, pp.None, 2015, https://doi.org/10.1016/j.ijnaoe.2020.06.007
  5. An advanced technique to predict time-dependent corrosion damage of onshore, offshore, nearshore and ship structures: Part II = Application to the ship's ballast tank vol.12, pp.None, 2015, https://doi.org/10.1016/j.ijnaoe.2020.07.002
  6. A parametric study on effects of pitting corrosion on stiffened panels' ultimate strength vol.12, pp.None, 2015, https://doi.org/10.1016/j.ijnaoe.2020.08.001
  7. Improved design formulas for the ultimate strength of platings with circular openings and manholes under uniaxial compression vol.75, pp.None, 2015, https://doi.org/10.1016/j.marstruc.2020.102847
  8. On the effect of pit shape on pitted plates, Part II: Compressive behavior due to random pitting corrosion vol.236, pp.None, 2021, https://doi.org/10.1016/j.oceaneng.2021.108737