Fracture Mechanics and Vibration Resistance
ADVANCED MATERIAL DATA FOR PERFORMANCE APPLICATIONS
Especially in mobility applications, metallic components are exposed to permanent stress changes. The Wöhler curve is of central importance in the design of a component – especially for materials such as aluminium which do not have a "classic" fatigue strength and therefore have to be tested experimentally up to the highest load cycles.
The strength of the LKR lies here, on the one hand, in the high test speed (typically: 80 Hz) as well as in the full flexibility with respect to sample shape and load condition.
- Vibration testing and Wöhler curves of standard, special samples, components
- Short test duration thanks to resonator testing machine (RUMUL Testronic)
- Detection of hardening and softening behaviour during the individual tests
- Tests at room and increased temperature
- Very small (<1 kN) to very large loads, at freely selectable load levels (pull/pressure)
|Test Procedure||Performance Parameters||Application|
|Fatigue test in the time and fatigue strength range||Creation of Wöhler curves, release dates for newly developed alloys|
|Fatigue testing at elevated temperature||Materials at real operating temperatures|
|Oscillation of notched impact and crack tests||Further fracture-mechanical analyzes with a precisely defined crack length|