Effect of high mean tensile stress on the fretting fatigue life of an Ibis steel reinforced aluminium conductor
| Autor: | J.A. Araújo, A.A. Fadel, J.L.A. Fereira, Daniel M. Rosa, L.B. Murça |
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| Rok vydání: | 2012 |
| Předmět: |
Materials science
business.industry Mechanical Engineering chemistry.chemical_element Fretting Structural engineering Industrial and Manufacturing Engineering Conductor Stress (mechanics) Clamp chemistry Mechanics of Materials Aluminium Modeling and Simulation Ultimate tensile strength General Materials Science Composite material Suspension (vehicle) business Electrical conductor |
| Zdroj: | International Journal of Fatigue. 42:24-34 |
| ISSN: | 0142-1123 |
| DOI: | 10.1016/j.ijfatigue.2011.03.007 |
| Popis: | The aim of this work is to evaluate the effect of a high mean tensile pre-load on the fatigue life of an Ibis type of steel reinforced aluminium conductor (ACSR) mounted on a monoarticulated cast aluminium suspension clamp. To carry out the tests a new and enhanced version of a fretting fatigue rig for overhead conductors was built. Based on the obtained S–N curves for this assembly it was shown that an increase of the Everyday stress (EDS) from 20% to 30% of the cable rated tensile strength (RTS) caused an average reduction of 50% in life. Failure analysis revealed that cracks always initiated at contact interfaces within the cable/clamp assembly, at the fretting marks. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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