http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
RISS 인기검색어
- 검색키워드
- 저자 : 함경춘 배성인(Sung In Bae) (검색결과 2 건)
- 무료
- 기관 내 무료
- 유료
-
Ĵ-적분을 이용한 후판 부분용입 다층용접재의 파괴 해석
김석(Seok Kim),함경춘,배성인(Sung In Bae),송정일(Jung Il Song) 대한기계학회 2001 대한기계학회 춘추학술대회 Vol.2001 No.8
Partial penetration welding joint defines that groove welds without steel backing, welded from one side, and groove welds welded from both sides but without back gouging, that is, it has an unwelded portion at the root of the weld. Study of partial penetration weldment fracture behavior includes residual stress analysis, and fracture analysis. The J-integral loses its path independency in residual stress field. Therefore, it is necessary new J-integral,?, which is considered the effect of plastic deformation and thermal strain. In this study, theoretical formulation and program were developed for the evaluation of ?-integral at the crack tip of weldment. Evaluations of fracture behavior were performed for partial penetration multi-pass weldment of 25.4mm thick plate by ?-integral. From a point of fracture in partial penetration multi-pass welding, it seemed to be better to control root face smaller than 6.35mm.
-
김재규(Jae-gyu Kim),김성훈(Sung-hoon Kim),배성인(Sung-in Bae),함경춘(kyung-chun Ham),송정일(Jung-il Song) 대한기계학회 2002 대한기계학회 춘추학술대회 Vol.2002 No.5
Hybrid metal matrix composites used in machines and structures need acceptable data of fatigue life. In real application, machines and structures are subjected to random load histories rather than regular-periodic load histories. Therefore, the fatigue life estimation under irregular-periodic load is necessary for the stability evaluation of machinery. This research makes comparisons of empirical fatigue-lives between AC8A Al alloy and the metal matrix composites(Al/A1₂/O₃/Al₂O₃p) and also includes comparisons of fatigue-lives between empirical fatigue-lives and estimated fatigue-lives from<br/> regular-periodic load. .<br/> According to the test result, the fatigue life of the hybrid metal matrix composites and the metal matrix composites, which are more brittle than the base matrix was shorter than that of the bast matrix under both types of loads. In addition, the fatigue-life estimated from the damage summation method and that from experiment at random load were fairly identical that the theoretical method of fatigue life estimation could be applied to the metal matrix composites.
연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
