저자명 정제웅 
년도 1994 
An effective experimental method is developed and carried out for identification of the forming limit diagram(FLD) of sheet metals. The sheet metals used in the experiment are several kinds of cold rolled steel sheets for autobody stamping. The FLD's are constructed from the specimens fractured during deep drawing and stretch forming, controlling width of the specimens and lubrication conditions. During the process of deep drawing, the blank holding force was controlled and a rubber pad was occasionally used to prevent excessive draw-in. The FLD's constructed by the experiment are compared with the theoretical ones. The theoretical FLD's are constructed by the data of mechanical properties obtained from the uniaxial tension test. A particular forming limit band is constructed based on the experimental data with both deep drawing and stretch forming. This forming limit band assures the formability of steel sheets during the stamping process for autobody, providing the limit strains in both stretch forming and deep drawing.
번호 제목 저자명 날짜 조회 수
9 Stress evaluation in plane strain problems by elasto-plastic finite element analysis with reduced integration (저감적분 탄소성 유한요소해석에 의한 평면변형문제에서의 응력계산) [1] 김세호  2005.11.29 5853
8 Load-carrying capacity of axisymmetric pressure vessels using finite element limit analysis (유한요소 극한해석을 이용한 축대칭 압력용기의 하중지지능력 해석) 김현섭  2005.11.29 8434
» Effective experimental method for identification of the forming limit diagram of sheet metals (금속 박판의 성형한계도를 구하기 위한 실험방법 개선에 관한 연구) 정제웅  2005.11.29 4011
6 Numerical simulation of superplastic forming with pressure control using a membrane finite element method (초소성 재료의 압력제어성형에 관한 박막유한요소해석) [1] 이기석  2005.11.29 5909
5 Finite element simulation of superplastic sheet forming with initial non-uniform thickness distribution (초기 두께분포가 있는 초소성 재료의 유한요소 성형해석) 최영준  2005.11.29 4092
4 Numerical simulations of sheet forming processes by an elasto-plastic finite element method (탄소성 유한요소법을 이용한 박판 성형 공정 해석) [1] 최태훈  2005.11.29 4394
3 Numerical simulation of bead formation by an elasto-plastic finite element method (탄소성 유한요소법을 이용한 비드 성형의 수치해석) 천병관  2005.11.29 3754
2 Numerical simulation of an extrusion process (유한요소 극한 해석을 이용한 가공경화재료의 압출공정해석) 이충호  2005.11.29 5973
1 Elasto-plastic finite element method with directional reduced integration in sheet metal forming( 선향적 저감 적분을 이용한 탄소성 유한 요소법에 의한 박판성형해석 ) 한수식  2005.11.29 3750