There are many classification methods for fatigue test. Here are some fatigue test classification methods.
1. According to the sample breaking stress (strain) cycle level can be divided into: low-cycle fatigue test, high-cycle fatigue test. Cycles with failure cycles greater than 5X104 are referred to as high-cycle fatigue tests, and those less than 5X104 are referred to as low-cycle fatigue tests.
2. According to the test environment can be divided into: room temperature fatigue test, low temperature fatigue test, high temperature fatigue test, thermal fatigue test, corrosion fatigue test, contact fatigue test, fretting fatigue test and so on.
3. According to the loading mode of the sample can be divided into: pull-compression fatigue test, bending fatigue test, torsion fatigue test, composite stress fatigue test. The bending fatigue test can be further divided into a rotary bending fatigue test, a circular bending fatigue test, and a plane bending fatigue test; it can also be divided into three-point bending, four-point bending, and cantilever bending fatigue tests.
4. According to the type of stress cycle can be divided into: equal amplitude fatigue test, variable frequency fatigue test, program fatigue test, random fatigue test and so on.
5. According to the stress ratio can be divided into: symmetrical fatigue test, asymmetric fatigue test. Asymmetric fatigue tests can be divided into one-way and two-way loading fatigue tests. One-way loading fatigue test can be divided into pulsation fatigue test and wave fatigue test.
6. According to the purpose of the test, it can be divided into: performance test fatigue test, influence coefficient fatigue test, comparative fatigue test, screening fatigue test, and verification fatigue test.
7. Prefabricated cracks according to the sample can be divided into: conventional fatigue test, fatigue crack propagation test
1. According to the sample breaking stress (strain) cycle level can be divided into: low-cycle fatigue test, high-cycle fatigue test. Cycles with failure cycles greater than 5X104 are referred to as high-cycle fatigue tests, and those less than 5X104 are referred to as low-cycle fatigue tests.
2. According to the test environment can be divided into: room temperature fatigue test, low temperature fatigue test, high temperature fatigue test, thermal fatigue test, corrosion fatigue test, contact fatigue test, fretting fatigue test and so on.
3. According to the loading mode of the sample can be divided into: pull-compression fatigue test, bending fatigue test, torsion fatigue test, composite stress fatigue test. The bending fatigue test can be further divided into a rotary bending fatigue test, a circular bending fatigue test, and a plane bending fatigue test; it can also be divided into three-point bending, four-point bending, and cantilever bending fatigue tests.
4. According to the type of stress cycle can be divided into: equal amplitude fatigue test, variable frequency fatigue test, program fatigue test, random fatigue test and so on.
5. According to the stress ratio can be divided into: symmetrical fatigue test, asymmetric fatigue test. Asymmetric fatigue tests can be divided into one-way and two-way loading fatigue tests. One-way loading fatigue test can be divided into pulsation fatigue test and wave fatigue test.
6. According to the purpose of the test, it can be divided into: performance test fatigue test, influence coefficient fatigue test, comparative fatigue test, screening fatigue test, and verification fatigue test.
7. Prefabricated cracks according to the sample can be divided into: conventional fatigue test, fatigue crack propagation test
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