Energy-based method of fatigue damage cumulation
| Autor: | Stanisław Mroziński |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Materials science
business.industry Mechanical Engineering Alloy Fatigue damage 02 engineering and technology Structural engineering engineering.material 021001 nanoscience & nanotechnology Industrial and Manufacturing Engineering 020303 mechanical engineering & transports Amplitude 0203 mechanical engineering Mechanics of Materials Modeling and Simulation visual_art Energy based engineering Aluminium alloy visual_art.visual_art_medium Hardening (metallurgy) General Materials Science 0210 nano-technology business |
| Zdroj: | International Journal of Fatigue. 121:73-83 |
| ISSN: | 0142-1123 |
| Popis: | The study presents the results of low-cycle fatigue tests on AW-2024 aluminium alloy specimens under constant amplitude and multistage loading conditions. As expected, significant hardening of the material was observed in both cases. The tests confirmed that cyclic properties of AW-2024 alloy under multistage loading conditions can be represented based on the results of tests under constant amplitude conditions for the same alloy. The basis for a new fatigue damage cumulation method was formulated based on a comparative analysis of the test results. The main feature of the proposed method consists in including into the analysis the cyclic hardening of AW-2024 alloy during fatigue life calculation. An experimental verification of the method proved its practical applicability. A comparative analysis of the results for a standard Palmgren-Miner hypothesis and the new approach demonstrated the advantages of using the new method. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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