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Zalaznik, Aleš; Nagode, Marko
Computational materials science, 03/2013, Letnik: 69Journal Article
► A temperature modified Dirlik (TMDK) model is validated successfully. ► The validation is performed on standard specimens made of aluminium alloy AlSi9Cu3. ► The model enables fatigue damage estimation for combination of the frequency based fatigue with the temperature effect. ► The TMDK model enables computationally fast fatigue damage estimation. The paper presents the validation of a temperature modified Dirlik method. This method enables an estimation of high cycle fatigue damage for uniaxial loadings caused by random vibrations directly from a known power spectral analysis with the temperature effect. High cycle fatigue properties of high pressure die-cast aluminium alloy AlSi9Cu3 are investigated at elevated temperatures. Standard fatigue tests are performed to determine the temperature dependent S–N curves. In the next step special fatigue tests are developed and performed to validate the temperature modified Dirlik method. Finally, the numerical simulation results are compared with the experimental results. The temperature modified Dirlik method is tested successfully. Besides, it enables a computationally fast fatigue damage estimation of random stress loadings and temperature histories.
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Leto | Faktor vpliva | Izdaja | Kategorija | Razvrstitev | ||||
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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