Constitutive law of creep deformation for notched specimens of heat-resistant materials related to the creep ductility and fracture life

Ryuji Sugiura, A. Toshimitsu Yokobori, Jinwoo Park, Tomofumi Kawamura, Hironori Tsukidate

    Research output: Contribution to journalArticlepeer-review

    1 Citation (Scopus)

    Abstract

    A prediction method of creep fracture and remnant life for cracked specimens was proposed taking account for the load line displacement rate and relative notch opening displacement rate by some of present authors. In this study, using the proposed master curve of creep deformation based on the similarity law of creep deformation plotted against the normalized time of stress application, it has been attempted to characterize the creep deformation and creep ductility throughout from creep-ductile to creep-brittle materials, such as ferritic, austenitic, Ni base and intermetallics materials.

    Original languageEnglish
    Pages (from-to)45-57
    Number of pages13
    JournalStrength, Fracture and Complexity
    Volume8
    Issue number1
    DOIs
    Publication statusPublished - 2013 Sep 16

    Keywords

    • Master curve
    • creep deformation
    • creep ductility
    • similarity law

    ASJC Scopus subject areas

    • Condensed Matter Physics
    • Mechanics of Materials
    • Mechanical Engineering

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