Modeling of Fatigue Crack Propagation in Aluminum Alloys Using an Energy Based Approach
| Autor: | M. Belhouari, Benaoumeur Aour, Foudil Khelil, Noureddine Benseddiq |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2013 |
| Předmět: |
Work (thermodynamics)
aluminum alloys Materials science lcsh:T58.5-58.64 business.industry lcsh:Information technology chemistry.chemical_element Structural engineering Strain rate Paris' law energetic approach plastic zone Crack closure Cracking fatigue crack growth chemistry Aluminium lcsh:TA1-2040 Energy based lcsh:Technology (General) lcsh:T1-995 business lcsh:Engineering (General). Civil engineering (General) Stress concentration |
| Zdroj: | Engineering, Technology & Applied Science Research, Vol 3, Iss 4, Pp 488-496 (2013) Engineering, Technology & Applied Science Research, Vol 3, Iss 4 (2013) |
| ISSN: | 1792-8036 |
| Popis: | Materials fatigue is a particularly serious and unsafe kind of material destruction. Investigations of the fatigue crack growth rate and fatigue life constitute very important and complex problems in mechanics. The understanding of the cracking mechanisms, taking into account various factors such as the load pattern, the strain rate, the stress ratio, etc., is of a first need. In this work an energy approach of the Fatigue Crack Growth (FCG) was proposed. This approach is based on the numerical determination of the plastic zone by introducing a novel form of plastic radius. The experimental results conducted on two aluminum alloys of types 2024-T351 and 7075-T7351 were exploited to validate the developed numerical model. A good agreement has been found between the two types of results. |
| Databáze: | OpenAIRE |
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