Smart Use of Structural Fatigue Data


Fatigue and Fracture, Aircraft Structures, Big Data


In the development and design of aircraft structures, multiple disciplines such as vibration behavior, stiffness, static and fatigue strength are investigated. Each of them must fulfill certain requirements. The results are validated by means of tests, in which, above all, fatigue evaluation is the most difficult one due to the large amount of data.


Those tests and simulations that strongly influence the fatigue behavior of the whole structure should be evaluated comprehensively. Through them, the significance shall be increased in order to save time and costs, in particular by eliminating complex structural tests. Thus, the test pyramid is to be narrowed towards the top. It is even conceivable to abandon the overall structure test.


Fatigue values can be extrapolated to real applied structures by taking into account, for example, environmental effects such as corrosion or temperature. Furthermore in extrapolation multiaxial loading and scatter of material parameters must be considered. If at every single stage of the test pyramid the virtual simulation mirrors the physical test, careful scaling can eliminate the overall structure test. In addition, by means of convenient data handling, the entire presented process should become more efficient.

Project Partners


Bauhaus Luftfahrt e.V.


Bundesministerium für Wirtschaft und Energie

Project Term

January 2018 to December 2021