Brittle crack propagation/arrest behavior in steel plate – Part II: Experiments and model validation. (August 2016)

• Record Type: Journal Article
• Authors: Shibanuma, Kazuki; Yanagimoto, Fuminori; Namegawa, Tetsuya; Suzuki, Katsuyuki; Aihara, Shuji
• Is Part Of: Engineering fracture mechanics. Volume 162(2016)
• Page Start: 341
• Page End: 360
• Publication Date: 2016-08
• Subjects: Brittle fracture -- Crack propagation -- Arrest toughness -- Steel plate -- The long crack problem; Fracture mechanics -- Periodicals; Rupture, Mécanique de la -- Périodiques; Fracture mechanics; Periodicals; 620.112605
• DOI: 10.1016/j.engfracmech.2016.02.053
• Languages: English
• ISSNs: 0013-7944

Abstract

Abstract : Graphical abstract: Highlights: The proposed model formulation is validated by comparing with the experiments. Temperature gradient crack arrest tests showed a deviation from the empirical knowledge. Duplex crack arrest tests showed a transition region of the crack arrest behavior. The model formulation successfully predicted the experimental results. A possible solution of "the long crack problem" is shown by the present study. Abstract: The proposed model formulation for brittle crack propagation/arrest behaviors in a steel plate has been validated by comparing with experiments of temperature gradient and duplex crack arrest tests. The proposed model formulation successfully predicted the experimental results, such as (1) a deviation from the empirical knowledge in the relationship between arrest toughness and temperature evaluated by the temperature gradient tests, and (2) a transition region of the crack arrest behavior evaluated by the duplex tests. The results consequently showed a possible solution to "the long crack problem", which was not solved in the past studies.