A New Numerical Analysis for Edge Defects in Rectangular Sheet

    Volume 38, Issue 6 (November 2010)

    ISSN: 0090-3973

    CODEN: JTEOAD

    Published Online: 13 April 2010

    Page Count: 10


    Yan, Xiangqiao
    Research Laboratory on Composite Materials, Harbin Institute of Technology, Harbin,

    Liu, Baoliang
    Research Laboratory on Composite Materials, Harbin Institute of Technology, Harbin,

    Hu, Zhaohui
    Research Laboratory on Composite Materials, Harbin Institute of Technology, Harbin,

    (Received 4 November 2009; accepted 16 March 2010)

    Abstract

    This note deals with the rectangular tensile sheet with the single edge defect (crack, half-circular-hole crack and half-square-hole crack) by using the hybrid displacement discontinuity method (a boundary element method) proposed recently by Yan. Detailed solutions of the SIFs of the three plane elastic crack problems are given, which can reveal clearly the effect of geometric parameters of the cracked bodies on the SIFs. By comparing the calculated SIFs of the single edge half-circular-hole crack and the single edge half-square-hole crack with those of the single edge crack, in addition, a shielding effect of the half-circular-hole and the half-square-hole on the SIFs of the single edge crack is discussed. It is illustrated that the boundary element method is simple yet accurate for calculating the SIFs of complex crack problems in finite plate.


    Paper ID: JTE102798

    DOI: 10.1520/JTE102798

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    Author
    Title A New Numerical Analysis for Edge Defects in Rectangular Sheet
    Symposium , 0000-00-00
    Committee G03