Fracture Behaviour of the AISI 4130 Surface Cracked Plate

AISI 4130 표면균열 판재의 파괴거동

  • Kim, Jae-Hoon ;
  • Ong, Jang-Woo ;
  • Moon, Soon-Il ;
  • Kim, Seong-EunKoo, Song-Hoe
  • 김재훈 (충남대학교 기계설계공학과) ;
  • 옹장우 (충남대학교 기계설계공학과) ;
  • 문순일 (국방과학연구소) ;
  • 김성은구송회 (국방과학연구소국방과학연구소)
  • Published : 1996.12.01

Abstract

In the case of surface cracked plate specimen, we can not measure the fracture toughness of ductile materials by the ASTM E 813 standard method. In this report, using the Acoustic Emission method, we found out crack initiation point and investigated fracture toughness which was calculated by FEM. The method used in this paper shows that fracture toughnes by using AE technique is reliable.

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