What Is High Cycle Fatigue Testing?
High cycle fatigue (HCF) testing is defined as a fatigue process where the failures happen in roughly greater than approximately 10,000 cycles and the samples are typically run till failure. High cycle fatigue tests are conducted on specimens in stress control and number of cycles to failure are monitored. Stress-Life (S-N) curves are further developed. An S-N Curve is generated by testing samples and recording the number of cycles to failure. The data is input into a database and a trend fit is applied to generate the curve. The S-N curve establishes a relationship between a stress level and the fatigue life of the material in a load bearing service condition.
AdvanSES has the expertise to carryout High cycle fatigue testing on components as well as material samples as per established standards. We are always ready to add test hardware and load-frames as per the project, please let us know your requirements.
In addition to elastomeric and polymeric composite components, we can provide High cycle fatigue testing as per the following test protocols;
- Axial Fatigue Testing
- 3-Point Bend Fatigue Testing
- 4-Point Bend Fatigue Testing
High-cycle fatigue (HCF) tests are often conducted on smooth bar specimens in load, force or stress control. The goal of the test is to determine the number of cycles to fracture for each specimen. Nominal stress levels in High Cycle Fatigue (HCF) tests are generally low, significantly below the material’s yield strength and failure limits. As a result, specimen lives may last tens or hundreds and maybe a million cycles. ASTM E466 covers the standard practices for conducting force controlled constant amplitude axial high cycle fatigue tests of metallic materials.