The Institute for Structures and Design in Stuttgart is equipped with several servo-hydraulic testing machines for research on the fatigue behaviour of novel high-performance materials. The data recorder integrated in the digital controller Control Cube allows for a measurement with a high acquisition frequency of force/torque, displacement/angle and of two additional signals (strain gauge/signals of external measurement systems). The test campaigns performed with these test setups focus on the estimation of the fatigue strength and the Wöhler curves of various materials under periodic loading cycles or under more complex cycles. With help of a 3D measurement system and digital image correlation, crack initiation and propagation can be additionally correlated to the loading amplitude, damage and life cycle.
More information: www.dlr.de/bt/en/desktopdefau...
Contact: Tobias Behling (tobias.behling@dlr.de)
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