볼트 체결부를 갖는 구조물의 유한요소모델링에 관한 연구

A Study on Finite Element Modeling of the Structure with Bolted Joints

  • 윤주철 (부산대학교 항공우주공학과 대학원) ;
  • 강범수 (부산대학교 항공우주공학과) ;
  • 김정 (부산대학교 ERC/NSDM)
  • 발행 : 2003.08.01

초록

In this study, in order to investigate a modeling technique of the structure with bolted joints, four kinds of finite element model are introduced; a solid bolt model, a coupled bolt model, a spider bolt model, and no bolt model. All proposed models take account on prestrained effect and contact behavior of flanges to be joined. Among these models, a solid bolt model, which is modeled by using a 3-D solid element and a surface-to-surface contact element between the head/nut and the flange interfaces, has the best accurate responses compared with the experimental results. In addition, coupled bolt model, which couples the degree of freedom between the head/nut and the flange, shows the best effectiveness and usefulness in view of computational time and memory usage. Finally, the bolt model proposed here is adopted for structural analysis of a large diesel engine of a ship consisting of several parts which is connected by long stay bolts.

키워드

참고문헌

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