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.
Status: PublishedPublication date: 2021-12
Edition: 3Number 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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ISO 1352:2021Stage: 60.60
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