Volume 16, Issue 2 (March 1988)

    A Microcomputer-Aided Four-Point Bend Test System for Determining Uniaxial Stress-Strain Curves

    (Received 12 January 1987; accepted 6 August 1987)

    CODEN: JTEOAD

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    Abstract

    A microcomputer-aided four-point bend test system has been developed for determining the tensile and compressive stress-strain curves, as well as elastic constants, for a material from a single bend test. A special four-point bend fixture has been designed and constructed to minimize loading errors which may occur in the tests. Microcomputer software has been developed for processing the large amount of data obtained from each bend test. Two kinds of cast iron (ASTM A48 and A536), which exhibit different stress-strain characteristics in tension and compression, have been tested to examine the validity of the test system for a limited range of strain. It has been shown that the stress-strain relations derived from the bend tests are in good agreement with those obtained directly from the uniaxial tension and compression tests for strains less than about 5%. The advantages and limitations of the bend tests are also discussed.


    Author Information:

    Yokoyama, T
    Research Associate, Division of Engineering Mechanics, Faculty of Engineering, Osaka University, Suita, Osaka,


    Stock #: JTE11162J

    ISSN: 0090-3973

    DOI: 10.1520/JTE11162J

    ASTM International is a member of CrossRef.

    Author
    Title A Microcomputer-Aided Four-Point Bend Test System for Determining Uniaxial Stress-Strain Curves
    Symposium , 0000-00-00
    Committee E28