International Journal of Naval Architecture and Ocean Engineering

The Society of Naval Architects of Korea (대한조선학회)
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An experimental study on fatigue performance of cryogenic metallic materials for IMO type B tank

  • Lee, Jin-Sung (Department of Naval Architecture and Ocean Engineering, Inha University) ;
  • You, Won-Hyo (Hyundai Steel Co., Ltd.) ;
  • Yoo, Chang-Hyuk (Department of Naval Architecture and Ocean Engineering, Inha University) ;
  • Kim, Kyung-Su (Department of Naval Architecture and Ocean Engineering, Inha University) ;
  • Kim, Yooil (Department of Naval Architecture and Ocean Engineering, Inha University)
  • Published : 2013.12.31
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Abstract

Three materials SUS304, 9% Ni steel and Al 5083-O alloy, which are considered possible candidate for International Maritime Organization (IMO) type B Cargo Containment System, were studied. Monotonic tensile, fatigue, fatigue crack growth rate and Crack Tip Opening Displacement tests were carried out at room, intermediate low ($-100^{\circ}C$) and cryogenic ($-163^{\circ}C$) temperatures. The initial yield and tensile strengths of all materials tended to increase with decreasing temperature, whereas the change in elastic modulus was not as remarkable. The largest and smallest improvement ratio of the initial yield strengths due to a temperature reduction were observed in the SUS304 and Al 5083-O alloy, respectively. The fatigue strengths of the three materials increased with decreasing temperature. The largest increase in fatigue strength was observed in the Al 5083-O alloy, whereas the 9% Ni steel sample showed the smallest increase. In the fatigue crack growth rate test, SUS304 and Al 5083-O alloy showed a decrease in the crack propagation rate, due to decrease in temperature, but no visible improvement in da/dN was observed in the case of 9% Ni steel. In the Crack Tip Opening Displacement (CTOD) test, CTOD values were converted to critical crack length for the comparison with different thickness specimens. The critical crack length tended to decrease in the case of SUS304 and increase for the Al 5083-O alloy with decreasing temperature. In case of 9% Ni steel, change of critical crack length was not observed due to temperature decrease. In addition, the changing material properties according to the temperature of the LNG tank were analyzed according to the international code for the construction and equipment of ships carrying liquefied gases in bulk (IGC code) and the rules of classifications.

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References

  1. American Society for Testing and Materials (ASTM), 2004. Standard test methods for tension testing of metallic materials: E8M-04. Philadelphia: ASTM International.
  2. American Society for Testing and Materials (ASTM), 2007. Standard test methods for crack-tip opening displacement (CTOD) fracture toughness measurement, E1290-07. Philadelphia: ASTM International.
  3. Anderson, T.L., 2005. Fracture mechanics: fundamentals and applications. Florida: CRC Press.
  4. Back, J.H., Kim, Y.P., Kim, W.S. and Kho, Y.T., 2001. Fracture toughness and fatigue crack growth properties of the base metal and weld metal of a type 304 stainless steel pipeline for LNG transmission. International Journal of Pressure Vessels and Piping, 78(5), pp.351-357. https://doi.org/10.1016/S0308-0161(01)00040-0
  5. British Standard (BS), 1997. Fracture mechanics toughness Test Part2 Method for determination of $K_{Ic}$ Critical CTOD and critical J values of welds in metallic materials, BS-7448: Part 2. London: British Standards Institution.
  6. Chung, S.W., Kim, B.J. and Suh, Y.S., 2010. A study on the application of cryogenic design criteria to an independent type B LNG tank made of SUS304. Proceeding of Autumn Meeting, The Society of Naval Architects of Korea, Republic of Korea, 21-22 October 2010, pp.93-98.
  7. Det Norske Veritas, 2010. Fatigue Assessment of Ship structures, Classification Notes No.30.7, Hovik: Det Norske Veritas.
  8. Det Norske Veritas, 2011. Rules for Classification of Ships Pt 5 Ch 5-Liquefied Gas Carrier, Hovik: Det Norske Veritas.
  9. International Institute of Welding (IIW), 1995. Stress determination for fatigue analysis of welded components. Abington: Abington Publishing, IIS/IIW-1221-93.
  10. International Maritime Organization (IMO), 2012. International Code for the Construction and Equipment of Ships Carrying Liquefied Gases in Bulk (IGC Code) , Ch. 4. London: International Maritime Organization
  11. Jung, J.I, Yang, Y.C., Kim, W.S., Hong, S.H. and Kwon, D.I, 1997. Evaluation of fracture toughness of heat-affected zone in 9% ni steel for inner wall of LNG storage tank. Proceedings of Autumn Meeting, The Korean Institute of Gas, Republic of Korea, September 1997, pp.45-52
  12. Kim, K.S., Park, C.Y. and Kang, J.K., 2011. Development of new IMO type B tank based on the results of cryogenic material property tests. Proceeding of 30th International Conference on Ocean, Offshore and Arctic Engineering, 3, Rotterdam, The Netherlands, 19-24 June 2011, pp.225-232.
  13. Nam, K.W., 2001. Life prediction of fatigue crack propagation and nondestructive evaluation in 5083 aluminum alloy. Journal of Ocean Engineering and Technology, 15(2), pp.94-98.
  14. Mukasi, Y. and Nishinura, A., 1990. Mechanical properties of SUS304 stainless steel under cold thermal cycles. 11th International Conference on Magnet Technology, January 1990, pp.743-748.
  15. Yoo, C.H., Kim, K.S., Choung, J.M., Kim, S.H., and You, W.H., 2011. An experimental study on behaviors of IMO type B CCS materials at room and cryogenic temperatures. Proceedings of the ASME 2011 30th International Conference on Ocean, Offshore and Arctic Engineering, Rotterdam, The Netherlands, 19-24 June 2011.
  16. Zhou, C., Yang, X. and Luan, G., 2006. Fatigue properties of friction stir welds in Al 5083 alloy. Scripta Materialia, 53(10), pp.1187-1191.