Abstract

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This document specifies the conditions for performing torsional, constant-amplitude, nominally elastic stress fatigue tests on metallic specimens without deliberately introducing stress concentrations. The tests are typically carried out at ambient temperature or an elevated temperature in air by applying a pure couple to the specimen about its longitudinal axis.

While the form, preparation and testing of specimens of circular cross-section and tubular cross-section are described in this document, component and other specialized types of testing are not included. Similarly, low-cycle torsional fatigue tests carried out under constant-amplitude angular displacement control, which lead to failure in a few thousand cycles, are also excluded.


General information 

  • Status
     : Published
    Publication date
     : 2021-12
  • Edition
     : 3
    Number of pages
     : 27
  • Technical Committee
     : ISO/TC 164/SC 4 Fatigue, fracture and toughness testing
  • ICS
     :
    77.040.10 Mechanical testing of metals

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