Fracture Toughness of 50kgf/mm2 Class New-CR Process Steel Plates

Nagamoto, Ryuichi; Ushijima, Masao; Kawamura, Akinobu; Yajima, Hiroshi; Tada, Masuo

doi:10.2534/jjasnaoe1968.1982.152_427

Cited by 2 publications

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“…1, it was found that EH-36 grade steel with the thickness of 80mmt showed the K IC value of 164kgf/mm 1.5 at -145°C. The previous study reported that the YP36kgf grade steel of 38mm thickness showed the K IC value of 82kgf/mm 1.5 at -145°C [4]. Although the fracture toughness decreases with the increase of the plate thickness, in this study, the steel plate of 80mm thickness obtained the fracture toughness as good as one of 38mm thickness.…”

Section: Resultsmentioning

confidence: 40%

Fracture Toughness of Thick Steel Plates for Shipbuilding

Park

Jung

Yajima

et al. 2008

MSF

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In this study, the effect of thickness on the fracture toughness of the steel plate with the thickness of 80mm has been investigated by the wide plate tensile test and ESSO test. The fracture toughness for crack initiation and propagation was evaluated quantitatively for the full thickness specimen. It was found that EH-36 grade steel with the thickness of 80mmt showed the KIC value of 164kgf/mm1.5 at -145°C. Also, large-scale ESSO test result showed that the steel with the thickness of 80mm had 520kgf/mm1.5 at -10°C. Although it was known that the fracture toughness decreases with the increase of the plate thickness, EH-36 grade steel with the thickness of 80mm had enough values of fracture toughness to prevent the crack initiation and arrest the brittle crack propagation.

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Section: Resultsmentioning

confidence: 40%