In this study, the structural analysis for bellows joint of high-performance that can enhance the performance of seismic isolation piping was performed. Bellows joint is that the corrugated flexible piping is connected at the both sides of elbow. An one axis of the bellows joint fixed, and the other end of the axis changes the position from 0° to 315° for the radius displacement of 500 mm. Results obtained are as follows for this case in analysing of the maximum stress and plastic strain of the bellows joint. As the location of the base isolation displacement get farther from the fixed pipe, the bellows joint is pulled, and the maximum stress and plastic deformation is increased. And so the maximum stress occurs near the bellows at both ends of the elbow. Displacement in the 135° position, a maximum stress of 837 MPa and a plastic strain of 3.00% was the highest.

Abstract
 1. 서론
 2. 해석이론 및 방법
  2.1 해석대상 및 방법
  2.2 해석 모델링 개요
  2.3 해석이론 및 조건
 3. 해석결과 및 고찰
 4. 결론
 후기
 참고문헌

• 장영근(용인송담대학교 건축소방설비과) | Y. K. JANG
• 류하상(용인송담대학교 자동차기계과) | H. S. Lyu
• 김철원(승진산업(주)) | C. W. KIM