GB/T 37306.2-2019: Metallic materials -- Fatigue testing -- Variable amplitude fatigue testing -- Part 2: Cycle counting and related data reduction methods

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Scope

This part of GB/T 37306 specifies methods for cyclic counting and data reduction for variable amplitude fatigue testing.
Cycle counts are binding for each test or test series, and various methods of data reduction are optional.
This section supports ISO 12110-1, which contains general requirements for variable amplitude fatigue tests, test methods, and reporting requirements.
This section applies to all load types and the term “load” refers to force, stress or strain.
The following items are outside the scope of this section.
--- Constant amplitude fatigue test with isolated overload or underload phenomenon;
---Experiment of parts or structural parts;
--- Environmental effects such as corrosion, temperature-dependent creep caused by frequency and waveform effects;
--- Multi-axis loading.
Note 1. Phase is critical when performing constant amplitude or variable amplitude controlled loading multi-axis tests.
Note 2. Frequency changes during cycling are outside the scope of this section, and subsequent chapters only deal with constant frequency cycling.

Basic Data

Standard ID	GB/T 37306.2-2019 (GB/T37306.2-2019)
Description (Translated English)	Metallic materials -- Fatigue testing -- Variable amplitude fatigue testing -- Part 2: Cycle counting and related data reduction methods
Sector / Industry	National Standard (Recommended)
Classification of Chinese Standard	H22
Classification of International Standard	77.040.10
Word Count Estimation	30,373
Date of Issue	2019-03-25
Date of Implementation	2020-02-01
Issuing agency(ies)	State Administration for Market Regulation, China National Standardization Administration