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Specimen Thickness Effect on Cleavage Fracture Toughness of High and Intermediate Pressure Steam Turbine Rotor Materials
高中圧タービンロータ材の破壊じん性値の試験片厚依存性
2004
Journal of the Society of Materials Science Japan
高中圧タービンロータ材の破壊じん性値の試験片厚依存性
Preserved Fulltext
Fracture toughness tests of Cr-Mo-V steels were conducted by the CT specimens of various thickness (B=b=a, B: specimen thickness, b: uncracked ligament, a: crack length), and 3-dimensional elastic-plastic finite element analyses of them have been performed. Based on the maximum tensile stress criterion for the cleavage fracture, specimen thickness effect on fracture toughness has been investigated analytically. It is proposed from the analyses that the fracture toughness is equivalent to the
doi:10.2472/jsms.53.877
fatcat:hukkwnwcojb37a3su4qorck53y