Evaluation of Stress Intensity Factor after Penetration of Plate with Long Surface Crack

긴 표면균열재의 관통후 응력확대계수 평가

  • Nam Kiwoo (Pukyong Nat. University, Department of Materials Engineering) ;
  • Lee Jongrark (Korea Gas Safety Corporation, R&D Division)
  • 남기우 (부경대학교 재료공학부) ;
  • 이종락 (한국가스안전공사 가스안전기술연구원 연구개발실)
  • Published : 2000.03.01


Stress intensity factor after penetration was discussed experimentally using long surface pre-cracked specimens of aluminum alloy 5083. The propagation behavior evaluation of long surface crack by equation proposed at penetration of short surface crack could be need modification to evaluate precisely because the error was high as aspect ratio is little. The modification of stress intensity factor with consideration of aspect ratio at penetration of long surface crack can be analyzed the behavior of crack penetration quantitatively.