• Title/Summary/Keyword: 용접재

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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;Park, Soo;Sin, In-Hwan;Seok, Chang-Sung
    • Transactions of the Korean Society of Mechanical Engineers A
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    • v.34 no.1
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    • pp.67-72
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    • 2010

  • 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 $\eta$ factor equation by Huh, et al. and then compared the results with those according with the ASTM standard.

  • https://doi.org/10.3795/KSME-A.2010.34.1.67 인용 PDF KSCI