Transactions of the Korean Society of Mechanical Engineers A (대한기계학회논문집A)
- Volume 34 Issue 1
- /
- Pages.67-72
- /
- 2010
- /
- 1226-4873(pISSN)
- /
- 2288-5226(eISSN)
DOI QR Code
A Study on the Evaluation of the Fracture Toughness for the Narrow Gap Welding Part of Nuclear Piping
원전배관 협개선 용접재 파괴인성 평가에 관한 연구
- Huh, Yong (Department of Mechanical Engineering, Sungkyunkwan University) ;
- Park, Soo (Department of Mechanical Engineering, Sungkyunkwan University) ;
- Sin, In-Hwan (Department of Mechanical Engineering, Sungkyunkwan University) ;
-
Seok, Chang-Sung
(Department of Mechanical Engineering, Sungkyunkwan University)
- Published : 2010.01.01
Abstract
The fracture toughness for the LBB analysis of piping is generally determined by the J-integral according to ASTM E1820. However, since this evaluates a base metal, the fracture toughness for narrow gap welding can be differently than the real value. This study evaluated the plastic factor of the narrow gap welding part of a nuclear piping with SA508 Cl.1a and SA312 TP316. Also, it performed the fracture toughness test for the narrow gap welding part and applied the new plastic
Keywords
Narrow Gap Welding;Heat Affected Zone;Strength Mismatch;Fracture Toughness;Plastic
File
References
- U.S. NRC, 1983, "Evaluation of Potential of Pipe Break," Report of the U.S. Nuclear Regulatory Commission Piping Review Committee, NUREG-1061, Vol. 3.
- Seok. C. S., Kang. B. K., 1999, "Evaluation of Fracture Resistance Characteristics of SA508 CL.1a Carbon Steel for Piping System," Journal of Korean Society of Mechanical Engineers, Vol. 23, No. 7, pp. 1147-1154
- ASTM, 2001, "Standard Test Method for Measurement of Fracture Toughness," ASTM E1820-01
-
Huh. Y., Cho. S. K., Koo. J. M. and Seok. C. S., 2007, "Plastic-
$\eta$ factor for Fracture Toughness Test of SA508 Narrow-gap Welds," 2007 Spring Conference of KSME - Kim. Y. J. and Schwalbe. K. H., 2001, "Mismatch Effect on Plastic Yield Loads in Idealised Weldments - Weld Center Cracks," Engineering Fracture Mechanics, Vol.68, pp.163-182 https://doi.org/10.1016/S0013-7944(00)00093-X
- Kim. Y. J. and Schwalbe. K. H., 2001, "Mismatch Effect on Plastic Yield Loads in Idealised Weldments - Heat Affected Zone Cracks," Engineering Fracture Mechanics, Vol.68, pp.183-199 https://doi.org/10.1016/S0013-7944(00)00094-1
- Korea Institute of Nuclear Safety(KINS), 2004, "Evaluation of the Integrity of the Narrow Gap welds," Regulatory research on the integrity of reactor components, HR-571
-
Huh. Y., Lee. K. H., Kim. H. I., Koo. J. M. and Seok. C. S., 2008, "Evaluation of the Plastic-
$\eta$ Factor Considering Strength Mismatch in a Narrow Gap Welding Part(ll)," KSME(A), Vol.32, No.6, pp.512-518 https://doi.org/10.3795/KSME-A.2008.32.6.512 - ASTM, 2001, "Standard Test Methods for Tension Testing of Metallic Materials," ASTM E8-01