This International Standard 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 in air (ideally at between 10 °C and 35 °C) 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 International Standard, 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.
ISO 1352:2011 Referenced Document
ISO 554:1976 Standard atmospheres for conditioning and/or testing; Specifications