고강도 콘크리트 디스크를 이용한 혼합모드 균열전파

Mixed Mode Crack Propagation using the High Strength Concrete Disk

  • 진치섭 (부산대학교 토목공학과) ;
  • 김희성 (부산대학교 생산기술연구소 특별연구원) ;
  • 박현재 (부산대학교 토목공학과) ;
  • 김민철 (부산대학교 토목공학과)
  • 발행 : 2000.10.01

초록

It is difficult to obtain accurate fracture toughness values by RILEM committees proposed three point bend test(TPB) because the shape of load-deflection curve is irregular and final crack propagation occurs after some slow stable cracking. However, for disk test, fracture toughness is easily obtained from crack initial load. We examined the cracked high strength concrete disk and the experimental results were compared with the results by finite element analysis(FEA). Also we compared experimental fracture locus with theoretical fracture locus.

키워드