빙해선박 강재의 저온 소성경화 구성방정식

• Published in: 大韓造船學會 論文集 Vol. 49; no. 3; pp. 227 - 231
• Main Authors: 민덕기(Dug-ki Min), 허영미(Young-Mi Heo), 조상래(Sang-Rai Cho)
• Format: Journal Article
• Language: Korean
• Published: 대한조선학회 2012
• Subjects: 조선공학; Plastic hardening constitutive equation(소성경화 구성방정식); Tensile test(인장실험); Low temperature(저온); Polar class vessels(빙해선박); Cold chamber(저온 챔버)
• ISSN: 1225-1143; 2287-7355

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.