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국내 최대 기계·건설 공학연구정보
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  • 시편연마기 Minitech 233~365 series
  • 국내학술대회

    149 0
    국내학술대회 제목 게시판 내용
    제목(국문) 균열열림변위를 이용한 복합하중이 작용하는 원주방향 관통균열 배관의 파괴저항시험범
    제목(영문) Fracture Toughness Estimates Based on Crack Opening Displacement for Circumferential Through-Wall Cracked Pipes under Combined Tension and Bending
    저자 김윤재 (Yun-Jae Kim ,고려대 ) ▷공저자네트워크등록하기
    허남수 (Nam-Su Huh ,MPA Stuttgat ) ▷공저자네트워크등록하기
    김영진 (Young-Jin Kim ,성균관대 ) ▷공저자네트워크등록하기
    초록 This paper provides experimental J estimation method for the circumferential through-wall cracked pipe under combined tension and four-point bending, based on the load-crack opening displacement (COD) records. Based on the limit analysis and rigid body rotation field, the plastic 11-factor for the load-COD record is derived. To give confidence in the proposed method, the J results from detailed 3-dimensional finite element analysis are compared with estimated J based not only on proposed method but also on conventional method using load-load line displacement, which shows that proposed method provides reliable J estimates regardless of analysis condition, on the other hand, the conventional method gives erroneous results for shallow cracks.
    keyword Circumferential Through-Wall Crack(원주방향 관통균열), Plastic η-factor(소성 η-계수)
    저널명 대한기계학회 춘계학술대회 ▷관련저널보기
    VOL 5
    PAGE 417-422
    발표년도 2005
    국문File 국문다운로드
    영문File
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