논문 국내 국내전문학술지(KCI급) 이방성 재료의 소성변형 해석을 위한 고정점 축차
- 학술지 구분 국내전문학술지(KCI급)
- 게재년월 2023-02
- 저자명 김정한,양승용
- 학술지명 한국분말재료학회지
- 발행처명 한국분말재료학회
- 발행국가 국내
- 논문언어 한국어
- 전체저자수 2
홈페이지논문 초록 (Abstract)
A fixed-point iteration is proposed to integrate the stress and state variables in the incremental analysis of plastic deformation. The Conventional Newton?Raphson method requires a second-order derivative of the yield function to generate a complicated code, and the convergence cannot be guaranteed beforehand. The proposed fixed-point iteration does not require a second-order derivative of the yield function, and convergence is ensured for a given strain increment. The fixed-point iteration is easier to implement, and the computational time is shortened compared with the Newton?Raphson method. The plane-stress condition is considered for the biaxial loading conditions to confirm the convergence of the fixed-point iteration. 3-dimensional tensile specimen is considered to compare the computational times in the ABAQUS/explicit finite element analysis.