STP942

    High-Temperature Low Cycle Fatigue Crack Propagation and Life Laws of Smooth Specimens Derived from the Crack Propagation Laws

    Published: Jan 1988


      Format Pages Price  
    PDF Version (328K) 18 $25   ADD TO CART
    Complete Source PDF (27M) 18 $271   ADD TO CART


    Abstract

    The objectives of this work are (1) to make clear the behavior of high-temperature low-cycle fatigue (LCF) crack propagation, (2) to verify the applicability of the J-integral to the fracture mechanics equations of crack propagation rates, (3) to derive two types of LCF life laws of smooth specimens based on the two types of crack propagation equations (i.e., cycle-dependent and time-dependent), (4) to show a resemblance to or a difference from the Manson-Coffin equation and the strain-range partitioning equations, and (5) to characterize the cycle-dependent and time-dependent fatigue laws. The effectiveness of the proposed failure-life equations was examined using experimental data on isothermal and thermal fatigue of smooth specimens.

    Keywords:

    fatigue crack propagation rate, J, -integral, fatigue life equation, strain energy parameter, isothermal fatigue, thermal fatigue


    Author Information:

    R, Ohtani
    Professor and Instructor, Kyoto University, Kyoto,

    T, Kitamura
    Professor and Instructor, Kyoto University, Kyoto,

    A, Nitta
    Senior Research Engineer and Manager, Central Research Institute of Electric Power Industry, Komae,

    K, Kuwabara
    Senior Research Engineer and Manager, Central Research Institute of Electric Power Industry, Komae,


    Paper ID: STP24545S

    Committee/Subcommittee: E08.05

    DOI: 10.1520/STP24545S


    CrossRef ASTM International is a member of CrossRef.