Most of the assessment equations for \$\$C_{t❜}\$\$, which is a well-known fracture parameter characterizing creep crack growth rates, have limited applicability to constant load hold conditions. However, creep crack growth occurs under load varying conditions when load increasing or decreasing time is so long that the creep deformation near the crack tip is not negligible. Hence, applicability of the \$\$C_{t}\$\$-parameter should be extended to the load varying conditions. In this study, equations for estimating the \$\$C_{t}\$\$-parameter under the load increasing conditions are derived by extending the concept of the \$\$C_{t}\$\$-parameter to the load increasing condition and are denoted as (\$\$C_{t}\$\$\$\$)_{r}\$\$. A generalized creep-fatigue crack growth model which employs (\$\$C_{t}\$\$\$\$)_{r}\$\$ is also discussed. To generalize this model, a new \$\$C_{t}\$\$ estimating equation considering the effects of the accumulated creep deformation during the load increasing period is required. As a previous step to derive this \$\$C_{t}\$\$-parameter, the correlation between the (\$\$C_{t}\$\$\$\$)_{r}\$\$ value at the end of the load increasing time and the \$\$C_{t}\$\$ value at the beginning of the succeeding load hold period is suggested by performing finite element analysis. (rdf:langString) (en) 김영진, 회원, 성균관대학교 기계공학부 (xsd:string) 윤기봉, 회원, 중앙대학교 기계공학부 (xsd:string) 이진호, 회원, 성균관대학교 대학원 기계공학과 (xsd:string) 550.5 (xsd:string) 김영진 (xsd:string) 윤기봉 (xsd:string) 이진호 (xsd:string) 2021-01-30T23:37:12 (xsd:dateTime) Mechanics interpretation of \$\$C_t\$\$-parameter under load increasing conditions (xsd:string) 26 cm (xsd:string) p. 217-229 (xsd:string) 1999 (xsd:string) 대446 (xsd:string) 하중증가 조건에서 \$\$C_t\$\$-매개변수의 역학적 해석 / 이진호, 김영진,윤기봉 (xsd:string) C*-integral (xsd:string) C*-적분 (xsd:string) Crack (xsd:string) Creep (xsd:string) Ct-parameter (xsd:string) Ct-매개변수 (xsd:string) Fatigue (xsd:string) Fracture mechanics (xsd:string) High temperature (xsd:string) 균열 (xsd:string) 크리프 (xsd:string) 파로 (xsd:string) 하중증가 조건에서 \$\$C_t\$\$-매개변수의 역학적 해석 (xsd:string) 23(1) (xsd:string)