GB/T 3075-2021: Metallic materials - Fatigue testing - Axial force-controlled method

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Scope

This document specifies the conditions for conducting axial, constant-amplitude, force-
controlled, fatigue tests at ambient temperature on metallic specimens, without deliberately
introduced stress concentrations. The object of testing while employing this Document is to
provide fatigue information, such as the relation between applied stress and number of cycles
to failure for a given material condition, such as hardness and microstructure, at various stress
ratios.
While the form, preparation and testing of specimens of circular and rectangular cross-section
are described, component testing and other specialized forms of testing are not included in this
Document.
NOTE 1: Fatigue tests on notched specimens are not covered by this Document since the shape and size
of notched test pieces have not been standardized. However, fatigue-test procedures described in this
Document can be applied to fatigue tests of such notched specimens.
NOTE 2: Throughout this Document, the engineering stress is employed. Engineering stress is defined
as the quotient of the axially applied force to the cross-sectional area of the test specimen at the test
temperature.

Basic Data

Standard ID	GB/T 3075-2021 (GB/T3075-2021)
Description (Translated English)	Metallic materials - Fatigue testing - Axial force-controlled method
Sector / Industry	National Standard (Recommended)
Classification of Chinese Standard	H22
Word Count Estimation	26,223
Issuing agency(ies)	State Administration for Market Regulation, China National Standardization Administration