An experimental study of loading parameters effect on fatigue crack closure in 12NC6 steel
| Autor: | B. Ould Chikh, Benattou Bouchouicha, Mohamed Benguediab, Abdellatif Imad, Hadj Miloud Meddah |
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| Přispěvatelé: | Laboratoire de Mécanique de Lille - FRE 3723 (LML), Université de Lille, Sciences et Technologies-Centrale Lille-Centre National de la Recherche Scientifique (CNRS), Université de Lille, Sciences et Technologies-Ecole Centrale de Lille-Université de Lille-Centre National de la Recherche Scientifique (CNRS) |
| Jazyk: | angličtina |
| Rok vydání: | 2012 |
| Předmět: |
Yield (engineering)
Materials science business.industry Fatigue testing 02 engineering and technology Structural engineering Effective load ratio 021001 nanoscience & nanotechnology Fatigue crack closure Closure ratio Crack closure 020303 mechanical engineering & transports 0203 mechanical engineering Closure (computer programming) Mechanics of Materials Range (statistics) General Materials Science Composite material 0210 nano-technology Constant (mathematics) business Instrumentation Strain gauge Stress intensity factor |
| Zdroj: | Mechanics of Materials Mechanics of Materials, Elsevier, 2012, 46, pp.83-93. ⟨10.1016/j.mechmat.2011.12.004⟩ |
| ISSN: | 0167-6636 |
| DOI: | 10.1016/j.mechmat.2011.12.004⟩ |
| Popis: | International audience; In this paper, the fatigue crack closure (FCC) phenomenon was experimentally revealed using the back face strain gauges technique. The effects of the loading parameters on FCC have been investigated on 12NC6 heat treated steel. Four yield stresses values have been tested. The loading conditions were chosen to have the stress intensity factor range ΔK between 17 and 30 MPaView the MathML sourcem with four load ratio values: 0.05-0.1-0.3 and 0.5. In this study, the closure stress intensity factor Kcl is approximately constant for all load ratio values (R). The expression describing the evolution of the closure parameter U is obtained as a function of both the R and Kmax. |
| Databáze: | OpenAIRE |
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