Fatigue testing

Way of testing of materials and elements to verify the fatigue resistance. The classical ways of testing are similar to the static tests (axial loading, three and four points bending). The only difference is that the loading is applied multiple times (up to couple of millions usually). Different maximum and minimum stress is applied as well as loading frequencies and imposed wave shape loading.  Some special tests for mocking other kinds of loading are done as well (nodding donkey, rutting tests).