Journal of Ocean Engineering and Technology (한국해양공학회지)

Korean Society of Ocean Engineers (한국해양공학회)
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A method of Determination of Fracture Toughness of Reactor Pressure Vessel Steel by J Integral

J적분을 이용한 원자력 압력용기강의 파괴인성치의 결정

  • 오세욱 (동아대학교, 기계공학과) ;
  • 임만배 (동아대학교, 기계공학과) ;
  • 김진선 (한국중공업 원자력 설계실)
  • Published : 1995.06.01
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Abstract

The elastic-plastic fracture toughness($J_{IC}$) and fracture resistance (J-R curve) of SA508-3 alloy steel used for nuclear reactor pressure vessel are investigated by using CT-type specimens. Fracture toughness tests are conducted by unloading compliance method and multiple specimen method at room temperature, -2$0^{\circ}C$ and 20$0^{\circ}C$. The apparent negative crack growth phenomenon which usually arises in partial unloading compliance test is well known. The negative crack growth phenomenon in determining J sub(IC) or J-R cure from partial unloading compliance experiments may be eliminated by the offset technique. In this study, the evaluation of $J_{IC}$ multiple specimen method recommended by the JSME gives the most reliable results by using half-size CT(similar-type) specimens.

Keywords

References

  1. ASTM E 813-81 Standard Test Method for $J_{IC}$, a Measure of Fracture Toughness
  2. ASTM E 813-87 Standard Test Method for $J_{IC}$, a Measure of Fracture Toughness
  3. JSME S001-81 Standard Test Method for $J_{IC}$
  4. ASTM STP 856 The Use of the Partial Unloading Compliance Method for the Determination of J-R Curve and $J_{IC}$ Voss,B.;Mayville,R.A.
  5. Fracture Research v.2 Experimental Studies of Stable Crack Growth ICF 5 Advances Carlsson,J.;Kaiser,S.;Markstrom,K.Wuthrich,C.;Oberg,H.
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