Implementation of Dirlik’s damage model for the vibration fatigue analysis

Demirel, Gürzap İ.
Kayran, Altan
Mechanical fatigue is an important phenomenon when the structures are exposed to dynamic, fluctuating loadings. Especially aerospace structures are commonly exposed to random vibration loadings. In this paper, random vibration fatigue is studied both numerically and experimentally. For this purpose, a rectangular cross-section notched beam is designed in order to conduct the vibration fatigue analysis in the frequency domain by the Dirlik's damage model. Aluminum and steel notched beams are prepared in order to carry out the vibration fatigue tests to compare with the fatigue analysis results. The effect of modal damping on the vibration fatigue analysis results is particularly studied. (c) 2019 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license ( Peer-review under responsibility of the 1st International Workshop on Plasticity, Damage and Fracture of Engineering Materials organizers.


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Mechanical fatigue is an important phenomenon when the structures are exposed to dynamic, fluctuating loadings. Especially aerospace structures are commonly exposed to random vibration loadings. Even if the components are stable and durable for static requirements, vibration fatigue failures can occur due to the dynamic and fluctuating loadings. Moreover, if the loading frequency has a wide bandwidth as in random vibration loadings, the natural frequencies or resonance regions of the structures are disturbe...
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Citation Formats
G. İ. Demirel and A. Kayran, “Implementation of Dirlik’s damage model for the vibration fatigue analysis,” 2019, vol. 21, p. 101, Accessed: 00, 2020. [Online]. Available: