You are being redirected because this document is part of your ASTM Compass® subscription.
    This document is part of your ASTM Compass® subscription.

    If you are an ASTM Compass Subscriber and this document is part of your subscription, you can access it for free at ASTM Compass
    Volume 6, Issue 3 (May 1978)

    The Effect of Interference on the Dimpled, Loaded-Hole Fatigue Strength of 2024-T3 Alclad® Aluminum Alloy

    Published Online: 01 May 1978

    CODEN: JTEVAB

      Format Pages Price  
    PDF (460K) 10 $25   ADD TO CART

    Cite this document

    X Add email address send
    X
      .RIS For RefWorks, EndNote, ProCite, Reference Manager, Zoteo, and many others.   .DOCX For Microsoft Word



    Abstract

    The effect of interference fit on the fatigue strength of loaded holes is well known. Recently a new technique has been developed for increasing this strength in thin sheet material. The technique consists of dimpling the material centering about the region where the hole is to be made and thus introducing tensile plastic strain. The dimple is then flattened and the hole drilled, leaving the region around the hole under residual compressive stress. Experiments were carried out to obtain the combined effect of interference and dimpling in loaded-hole fatigue applications. In zero-totension fatigue tests on nominally 1.60-mm (0.063-in.) thick 2024-T3 Alclad® aluminum alloy specimens, combined optimum tapered-pin interference and dimpling gave a fatigue strength improvement factor of 4.0 while the dimpling technique increased the fatigue strength by a factor of 2.85 at 106 cycles to failure.


    Author Information:

    Kuc, AP
    Graduate student and professor, University of Manitoba, Winnipeg, Manitoba

    Shewchuk, J
    Graduate student and professor, University of Manitoba, Winnipeg, Manitoba


    Stock #: JTE10937J

    ISSN:0090-3973

    DOI: 10.1520/JTE10937J

    Author
    Title The Effect of Interference on the Dimpled, Loaded-Hole Fatigue Strength of 2024-T3 Alclad® Aluminum Alloy
    Symposium ,
    Committee E08