Journal of the Society of Naval Architects of Korea (대한조선학회논문집)

The Society of Naval Architects of Korea (대한조선학회)
권호 표지
DOI QR코드

DOI QR Code

Low Temperature Plastic Hardening Constitutive Equation for Steels of Polar Class Vessels

빙해선박 강재의 저온 소성경화 구성방정식

  • 민덕기 ((주)현대미포조선) ;
  • 허영미 (울산대학교 조선해양공학부) ;
  • 조상래 (울산대학교 조선해양공학부)
  • Received : 2011.09.29
  • Accepted : 2012.05.07
  • Published : 2012.06.20
Download PDF
⟨ Previous Next ⟩

Abstract

In this study, a plastic hardening constitutive equation for steels of polar class vessels at low temperature is proposed. The equation was derived using the experimental data obtained from tensile tests at room and low temperatures. Tensile tests at low temperature are both costly and time consuming because an expensive cold chamber is necessary and it takes too much time to cool down a specimen to set temperature. Using the proposed plastic hardening constitutive equation the plastic hardening characteristics of steels for polar class vessels at low temperature can be easily predicted from the tensile test results at room temperature.

Keywords

References

  1. ASTM, 2007. Standard Test Method for Tensile Strain-Hardening Exponents (n-Values) of Metallic Steel Materials. E646-07.
  2. Bridgman, P.W., 1952. Studies in Large Plastic Flow and Fracture. McGraw-Hill, New York.
  3. Hollomon, J.H., 1945. Tensile Deformation. Trans. A.I.M.E., 162, pp.268.
  4. Ludwik, P., 1909. Elemente der Technologischen Mechanik. Springer-Verlag, Berlin.
  5. Min, D-K. Shim, C.S. Shin, D.W. & Cho, S-R., 2011. On the Mechanical Properties at Low Temperature for Steels of Ice-Class Vessels. Journal of the Society of Naval Architects of Korea, 48(2), pp.171-177. https://doi.org/10.3744/SNAK.2011.48.2.171
  6. Nemat-Nasser, S. & Guo, W.G., 2003. Thermo mechanical Response of DH-36 Structural Steel Over a Wide Range Of Strain Rates and Temperature. Mech. Mat., 35(11), pp.1023-1047. https://doi.org/10.1016/S0167-6636(02)00323-X
  7. Ramberg, W. & Osgood, W.R., 1943. Description of Stress-Strain Curves by three Parameters. Technical Note No. 902, National Advisory Committee For Aeronautics, Washington DC.
  8. Swift, H.W., 1952. Plastic Instability under Plane Stress. J. Mech. Phys. Solids, 1(1), pp.1. https://doi.org/10.1016/0022-5096(52)90002-1

Cited by

  1. On the Fracture of Polar Class Vessel Structures Subjected to Lateral Impact Loads vol.49, pp.4, 2012, https://doi.org/10.3744/SNAK.2012.49.4.281