ASTM WK37702

    New Test Method for Conducting Rotary Beam Fatigue Tests of Wire

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    WK37702

    1. Scope

    1.1 This test method covers a procedure for the performance of rotating beam fatigue tests of wire to obtain the fatigue strength of metallic materials at a specified life in the fatigue regime where the strains (stresses) are predominately and nominally elastic. This method is limited to the fatigue testing of small diameter wire subjected to a constant amplitude periodic strain (stress). The method is not intended to screen or study the effects of internal material structure, such as inclusions, on the fatigue life of small diameter wire. Note 1The following documents, although not directly referenced in the text, are considered sufficiently important to be listed in this test method: E466 Practice for Conducting Force Controlled Constant Amplitude Axial Fatigue Tests of Metallic Materials E468 Practice for Presentation of Constant Amplitude Fatigue Test Results for Metallic Materials E606 Practice for Strain-Controlled Fatigue Testing E739 Practice for Statistical Analysis of Linear or Linearized Stress-Life and Strain-Life Fatigue Data 1.2 Units - The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard. 1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.


    Keywords

    fatigue, rotating bending, wire

    The title and scope are in draft form and are under development within this ASTM Committee.

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    Work Item Status

    Date Initiated:
    05-17-2012

    Technical Contact:
    Kenneth Jerina

    Item:
    001

    Ballot:
    E08 (13-03)

    Status:
    Withdrawn From Balloting

    Item:
    002

    Ballot:
    E08 (14-01)

    Status:
    Ballot Item Approved as E2948-2014 and Pending Publication