A unified approach for high and low cycle fatigue based on shakedown concepts
| Autor: | M.H. Maitournam, Andrei Constantinescu, K. Dang Van |
|---|---|
| Rok vydání: | 2003 |
| Předmět: |
Mesoscopic physics
Materials science business.industry Mechanical Engineering Fatigue testing 02 engineering and technology Mechanics Structural engineering Dissipation 021001 nanoscience & nanotechnology Fatigue limit Shakedown 020303 mechanical engineering & transports 0203 mechanical engineering Mechanics of Materials Macroscopic scale Bounded function General Materials Science Low-cycle fatigue 0210 nano-technology business |
| Zdroj: | Fatigue Fracture of Engineering Materials and Structures. 26:561-568 |
| ISSN: | 1460-2695 8756-758X |
| DOI: | 10.1046/j.1460-2695.2003.00675.x |
| Popis: | The purpose of this paper is to present a unified analysis to both high and low cycle fatigue based on shakedown theories and dissipated energy. The discussion starts with a presentation of the fatigue phenomena at different scales (microscopic, mesoscopic and macroscopic) and of the main shakedown theorems. A review of the Dang Van high cycle fatigue criterion shows that this criterion is essentially based on the hypothesis of elastic shakedown and can therefore be expressed as a bounded cumulated dissipated energy. In the low cycle fatigue regime, recent results by Skelton and Charkaluk et al. show that we can speak of a plastic shakedown at both mesoscopic and macroscopic scale and of a cumulated energy bounded by the failure energy. The ideas are also justified by infrared thermography tests permitting a direct determination of the fatigue limit. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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