Ultrasonic/Very-High-Cycle Fatigue Machine

Fatigue lifetime of many applications goes beyond 10^7 cycles in different industries such as automotive, aerospace, powerplants, shipbuilding, locomotive and many more. On the other hand, now a days, researchers are developing new materials and new manufacturing techniques, e.g. additive manufacturing techniques, which are becoming a game-changing technology with enormous potential impact on the range of available designs. Therefore, fatigue fracture assessment of many safety critical applications becomes extremely important for better understanding and design of the components and structures. In this proposal the applicants would like to invest in an Ultrasonic/Very-High-Cycle Fatigue (VHCF) machine which is used for durability assessment of different materials (metals, plastics, composites, ceramics and biomaterials) at a very high frequency of 20 kHz, performing a fatigue test with 10^9 cycles in about 14 hours. The method is based on exposing the specimen to longitudinal vibrations on its resonance frequency close to 20 kHz. This testing machine provides the most time- and cost-efficient test procedure for reliable service life data.

Keywords:Fatigue Fracture, Ultrasonic Fatigue Machine, Very High Cycle Fatigue, Materials Characterization

Disciplines:Structural and mechanical properties, Materials science and engineering not elsewhere classified, Manufacturing processes, methods and technologies