빙해선박 강재의 저온 소성경화 구성방정식
Low Temperature Plastic Hardening Constitutive Equation for Steels of Polar Class Vessels
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초록
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.
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.
참고문헌 (8)
- ASTM, "Standard Test Method for Tensile Strain-Hardening Exponents (n-Values) of Metallic Steel Materials. E646-07", ~ (2007)
- Bridgman, P. W., "Studies in Large Plastic Flow and Fracture" (1952), McGraw-Hill
- Hollomon, J. H., "Tensile Deformation", A.I.M.E, 162, pp.268~ (1945)
- Ludwik, P., "Elemente der Technologischen Mechanik" (1909), Springer-Verlag
- 민덕기, "빙해선박용 강재의 저온특성에 관한 연구", 대한조선학회 논문집, 48(2), pp.171~177 (2011), 대한조선학회
- Nemat-Nasser, S., "Thermo mechanical Response of DH-36 Structural Steel Over a Wide Range Of Strain Rates and Temperature", Mech, 35(11), pp.1023~1047 (2003)
- Description of Stress-Strain Curves by three Parameters, "Ramberg, W.", National Advisory Committee For Aeronautics, ~, pp.Technical Note No. 902 (1943)
- Swift, H. W., "Plastic Instability under Plane Stress", J. Mech. Phys. Solids, 1(1), pp.1~ (1952)