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In order to evaluate the fracture toughness of steel plates, centre-notched wide plate tension test is usually conducted using 400 mm width specimens. However, a large testing machine and huge expenditures are necessary in the case of 50–90 mm heavy-thick steel plates. In this paper, centre-notched small size tension test is proposed to evaluate the fracture toughness of heavy-thick steel plates by...
A centre-notched small size tension test specimen was developed to evaluate the toughness against unstable brittle fracture from fatigue crack, which is initiated and propagated from the surface of the butt-welded joints Qof heavy-thick steel plates. Centre-notched small size tension test specimens were made from butt-welded joints of 70 mm heavy-thick steel plates and employed for the tests using...
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