대한기계학회논문집 (Transactions of the Korean Society of Mechanical Engineers)
- 제3권4호
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- Pages.133-142
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- 1979
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- 1225-5963(pISSN)
DOI QR Code
J-적분을 이용한 저탄소강의 파괴탄성치 결정
Fracture toughness of Low-carbon steel using J-intergral Principle
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- Kwak, Byung-Man
- 발행 : 1979.11.01
초록
The fracture toughness of a hot rolled 100 mm thick SS41 steel plate was investigated for various crack ratios and thichnesses using the method of J-integral. The experiments were performed on an MTS machine and the crack initiation point was detected by using an electricl impedance method. The J-integral computed at the initiation point of the slow stable crack growth was almost constant within the range of crack ratios tested. The fracture toughness thus obtained was
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