High-performance materials improve the function and extend the application range of machines and systems, such as in light construction and high-temperature applications in the automotive industry, in power plants or in aircraft engines. However, components based on high-performance materials have to be qualified in each case in order to ensure the resilience and safety of the subsequent product. In view of the mechanical properties and the service life behavior, they occur, for example, with high-frequency fatigue tests under a cyclic, recurrent load. These measurements place high demands on the measuring speed of the strain measurement systems which are used. Now, researchers at the Fraunhofer Institute for Mechanics of Materials IWM and the Fraunhofer Institute for Physical Measurement Techniques IPM have succeeded in increasing by a factor of ten the measuring speed for the non-contact strain measurement as part of fatigue tests.
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