Rodrigo Nogueira 

High-cycle fatigue tests are widely used by a variety of industries and research laboratories. This projects consists on the design and development of a mechanical fatigue test machine by bending of a rotating beam, with the objective of testing high-cycle fatigue and service-life loads. The machine is capable of rotating at 18,000 rpm, generating cyclic stresses at 300 Hz. Loads are variable by digital input, and are controlled by a closed loop linear actuator. The design is versatile, being able to generate stresses from zero to 3000 MPa on all test-specimen sizes. It is portable (lightweight) and costs a fraction of standard commercial models.