[생산기술부문] 박판성형공정의 유한요소 해석에서 비드저항력 적용 = An Implementation of the Equivalent Drawbead Restraining Force in Finite Element Analysis of Sheet Metal Forming Process

다국어 초록 (Multilingual Abstract)

Drawbeads arc widely used in the stamping processes in order to control the material flow. The defects of sheet metal products such as wrinkling and tearing can be controlled by appropriate implementation of drawbeads, The equivalent drawbead restraining force is imposed in finite clement analysis of sheet metal forming process in the form of nodal external force vector. Nodal drawbead forces arc calculated by newly proposed method, In order to avoid the abrupt change of external nodal drawbead forces the nodal drawbead forces are calculated by the surface integration of the bead force density in the bead area, The results are compared with the results obtained by ordinary line integration

목차 (Table of Contents)

• ABSTRACT
  
• 1.서론
  
• 2.절점에 주어지는 비드 저항력의 계산
  
• 3.결과 및 토론
  
• 4.결론
  
• Reference