標準號:IS 12514-1988
發布日期:1989/7/1 12:00:00
實施日期:1999/12/31 12:00:00
適用范圍:1.1 This standard specifies the conditions for carrying out torsional stress fatigue tests on test pieces having a nominal diameter between 5 and 12.5 mm without deliberately introduced stress concentrations. The tests are carried out at room temperature in air, by applying to the test piece a pure couple about its longitudinal axis.1.2 The form, preparation and testing of test pieces of circular cross-section are specified but component testing and other specialized form of tests are not included. Similarly, high strain torsional fatigue tests, which lead to failure in a few thousand cycles, are also excluded.
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