Volume 16, Issue 6 (November 1988)

    Plastic Rotation Factors of Three-Point Bend and Compact Tension Specimens

    (Received 30 November 1987; accepted 14 April 1988)

    CODEN: JTEOAD

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    Abstract

    Plastic rotation factors (rp) for three-point bend and compact tension specimens were obtained for a range of normalized crack depths (a/W) from 0.25 to 0.88 and power law hardening materials. The theoretical slip-line field solutions were used for non-strain hardening materials (i.e., n = ∞) and the Kumar-German-Shih finite element plastic displacement solutions for strain hardening materials (i.e., n < ∞) in these rp calculations. For crack depth a/W = 0.50, the factors rp are approximately independent of strain hardening if n > 5 and are in reasonable agreement with those values recommended by ASTM Subcommittee E24.08 for calculation of crack tip opening displacements in these two types of specimens. For n ≤ 5 the error in rp becomes appreciably large.


    Author Information:

    Wu, S-X
    Graduate Student, Professor, and Reader, University of Sydney, Sydney, NSW

    Mai, Y-W
    Graduate Student, Professor, and Reader, University of Sydney, Sydney, NSW

    Cotterell, B
    Graduate Student, Professor, and Reader, University of Sydney, Sydney, NSW


    Stock #: JTE11276J

    ISSN: 0090-3973

    DOI: 10.1520/JTE11276J

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    Author
    Title Plastic Rotation Factors of Three-Point Bend and Compact Tension Specimens
    Symposium , 0000-00-00
    Committee E08