Andreas Ettemeyer

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Challenging the limits of modern material and component designs requires a deep understanding of the product performance with respect to stress distribution, fatigue and lifetime. With the help of modern simulation tools as FEA this process has significantly been improved and simplified. However, for experimental validation in the test, modern and efficient(More)
Shearography has been validated as fast and reliable inspection technique for aerospace components. Following several years phase of evaluation of the technique, meanwhile, shearography has entered the industrial production inspection. The applications basically range from serial inspection in the production line to field inspection in assembly and to(More)
A novel approach for the simulation of the field back-scattered from a rough surface is presented. It takes into account polarization and multiple scattering events on the surface, as well as diffraction effects. The validity and usefulness of this simulation is demonstrated in the case of surface topology measurement.
The measurement of brake squeal vibrations is a difficult problem, because the rotating disc does not allow any physical contact with the sample during measurement. The use of accelerometers is difficult and very time consuming. Non-contact scanning techniques (e.g. vibrometers) are widely used for these applications, and although they provide a very high(More)
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