Volume 15, Issue 1 (January 1987)

    Characterization of Fracture Behavior in Small Punch Test by Combined Recrystallization-Etch Method and Rigid Plastic Analysis

    (Received 28 December 1985; accepted 31 July 1986)

    CODEN: JTEOAD

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    Abstract

    The purpose of this investigation is to understand the deformation process of the small punch test and to use it to characterize the fracture properties of materials. By comparisons between recrystallization-etch results and perfect-rigid plastic analysis, the deformation process of the small punch test has been clearly divided into three regions. Equivalent fracture strain under biaxial stress state has been obtained from 10 by 10 by 0.5 mm thin sheet samples using both a recrystallization-etch technique and a semi-analytical method to characterize the fracture property of the material. The results of biaxial equivalent fracture strain can be related almost linearly to fracture toughness (JIc) for elastic-plastic behavior.


    Author Information:

    Mao, X
    Research Institute for Strength and Fracture of Materials, Faculty of Engineering, Tohoku University, Sendai,

    Shoji, T
    Research Institute for Strength and Fracture of Materials, Faculty of Engineering, Tohoku University, Sendai,

    Takahashi, H
    Research Institute for Strength and Fracture of Materials, Faculty of Engineering, Tohoku University, Sendai,


    Stock #: JTE11549J

    ISSN: 0090-3973

    DOI: 10.1520/JTE11549J

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    Author
    Title Characterization of Fracture Behavior in Small Punch Test by Combined Recrystallization-Etch Method and Rigid Plastic Analysis
    Symposium , 0000-00-00
    Committee E08