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Fatigue Test Systems

The damage of components by being exposed to repeated dynamic loads below the yield limit is called fatigue. Based on the S-N curve of the components, the number of repetitions decreases as the voltage value increases. Today, many parts used in dynamic conditions are subjected to fatigue tests in order to understand the fatigue behavior against dynamic loads. These tests are carried out by fixing the part from the boundary conditions in the working conditions and applying force / moment from the points it is exposed to under working conditions. This type of systems generally consists of 4 main components.


The actuator that applies the force / moment,

Controller

Unit providing the necessary power to the actuator

Fixtures required to set up the test


Actuators can move linearly or in the direction of rotation. It can be hydraulic driven or electric motor driven. Accordingly, the unit providing power differsActuators can move in a linear or rotational direction. It can be hydraulic driven or electric motor driven. Accordingly, the unit supplying power differs.


Roughly, many test systems are formed by combining these separate components. For the success of the test, these 4 elements must be determined very accurately.