Fatigue test is used to determine whether any material can withstand Cyclic Fatigue Loading. Repeated loading & unloading in various modes like tension, compression, bending, torsion, or multiple combinations of these tests can be used in cyclic fatigue analysis.

DAK’s versatile Fatigue series offers a range of applications meeting the testing requirements across industries with it’s diversified software capabilities & more than 400+ holding fixtures facilitating the testing of various materials.

The aim of a fatigue test is generally to determine the lifetime of a material subjected to cyclic loading, but fatigue strength and crack resistance are also frequently sought values. The cumulative number of cycles that a material can be exposed to under a single loading scheme is known as its Fatigue life. A fatigue test can also be used to assess the maximum load that a sample can sustain for a given number of cycles. All of these properties are critical in any industry where a material is subjected to changing rather than constant forces

There are several different forms of fatigue testing, as well as two different types of fatigue testing:

– Load controlled High Cycle Fatigue

– Strain controlled Low Cycle Fatigue.

High cycle fatigue tests are usually associated with loads in the elastic regime. Low cycle fatigue tests are typically associated with plastic deformations.

Almost all materials might undergo Fatigue in some form or another across the lifetime of their application. Due to the rigidity and ductility, components made of metals or composites with these characteristics appear to have increased fatigue strength, these materials have a higher fatigue limit than others. Other materials, such as polymers, ceramics, and wood, may experience fatigue & must be tested to determine how they will respond to these unusual stress variations.