How is a fatigue test performed in a laboratory?
A fatigue test lab examines the behavior of materials under varying loads of stress. A material is often subjected to two loads: a set mass load (i.e. zero) and an alternating load. Until the material breaks, these loads cycle and measure. Fatigue life refers to the failure of a material due to fatigue.
What is the Goal of Fatigue Testing?
The purpose of a fatigue test lab is typical to determine the expected lifespan of a material subjected to cyclic loading, but fatigue strength and crack resistance are also commonly sought values. A materials fatigue life is the total number of cycles that it can withstand under a single loading scheme.In Maeon lab, A fatigue test can also be used to determine the maximum load that a sample can withstand for a given number of cycles. All of these characteristics are critical in any industry where the material is subject to varying rather than constant forces.
How to Perform a Fatigue Test?
A sample is loaded into a fatigue tester or fatigue test machine and loaded with the pre-determined test stress, then emptied to either zero loads or the opposite load to perform a fatigue test. The loading and unloading procedure is then repeated until the test is completed. Depending on the test parameters, the test can be run for a predetermined number of cycles or until the sample fails.
Different Types of Fatigue Testing Materials
Almost all materials will experience fatigue in some form or another during the course of their applications lifetime. Components composed of metals or composites are commonly found in situations where fatigue is an issue. Because of their stiffness and ductility, which are qualities that tend to boost fatigue strength, some materials have a higher fatigue limit than others. Other materials, such as polymers, ceramics, and wood, may be susceptible to fatigue and must be examined to determine how they will react to these unusual stress conditions.
In Maeon Lab, We work with high-speed rotating components in challenging conditions, we provide both low-cycle and high-cycle fatigue spin testing services. We can test a wide range of sophisticated and cutting-edge machinery parts for jet engines, electric motors, turbomachinery, and energy storage systems.