Fatigue Crack Growth Prediction under Spectrum Load in an Aluminium Alloy using Crack Driving Force K*eff Approach
| العنوان: | Fatigue Crack Growth Prediction under Spectrum Load in an Aluminium Alloy using Crack Driving Force K*eff Approach |
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| المؤلفون: | K. Badari Narayana, A.R. Anilchandra, C.M. Manjunath, B. Shailesh Kamath, T. Sivaranjani |
| المصدر: | International Journal of Vehicle Structures and Systems. 12 |
| بيانات النشر: | MAFTREE, 2020. |
| سنة النشر: | 2020 |
| مصطلحات موضوعية: | Crack closure, Amplitude, Materials science, Tension (physics), Mechanical Engineering, visual_art, Work (physics), Aluminium alloy, visual_art.visual_art_medium, Aerospace Engineering, Mechanics, Growth rate, Paris' law |
| الوصف: | Fatigue Crack Growth (FCG) behaviour in a Single-Edge-Notched Tension (SENT) specimen of 2024-T3 aluminium alloy under a standard mini-FALSTAFF spectrum load sequence was experimentally determined. Further, the FCG behaviour was predicted using cycle-by-cycle method and compared with experimental results. Prediction procedure involved are rain-flow counting of fatigue load cycles, estimation of crack driving force for each of the counted cycle and prediction of crack extension per cycle from constant amplitude crack growth rate equation. In the present work, a new crack driving force (CDF) K*eff involving Kujawski’s crack driving force K* in conjunction with Elber’s crack closure concept was used to account for load interaction effects. FCG prediction was also made using conventional CDF ΔKeff (Elber’s) approach. A good correlation was observed between experimental and predicted FCG behaviour under spectrum loads by the proposed K*eff approach. Also, this prediction was observed to be better than that predicted by conventional ΔKeff approach. |
| تدمد: | 0975-3540 0975-3060 |
| DOI: | 10.4273/ijvss.12.3.26 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::6f520353c2faa0bbf3d0818076729e02 https://doi.org/10.4273/ijvss.12.3.26 |
| رقم الانضمام: | edsair.doi...........6f520353c2faa0bbf3d0818076729e02 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 09753540 09753060 |
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| DOI: | 10.4273/ijvss.12.3.26 |