논문 국내 국내전문학술지(KCI급) 개선된 회귀착점 방법을 이용한 이방성 적층구조물의 소성해석
- 학술지 구분 국내전문학술지(KCI급)
- 게재년월 2022-08
- 저자명 김정한,양승용,진두한
- 학술지명 한국분말재료학회지
- 발행처명 한국분말재료학회
- 발행국가 국내
- 논문언어 한국어
- 전체저자수 3
홈페이지논문 초록 (Abstract)
The plastic deformation behavior of additively manufactured anisotropic structures are analyzed using thefinite element method (FEM). Hill’s quadratic anisotropic yield function is used, and a modified return-mapping methodbased on dual potential is presented. The plane stress biaxial loading condition is considered to investigate the numberof iterations required for the convergence of the Newton-Raphson method during plastic deformation analysis. In thisstudy, incompressible plastic deformation is considered, and the associated flow rule is assumed. The modified returnmappingmethod is implemented using the ABAQUS UMAT subroutine and effective in reducing the number ofiterations in the Newton-Raphson method. The anisotropic tensile behavior is computed using the 3-dimensional FEMfor two tensile specimens manufactured along orthogonal additive directions.