Time-dependent creep behavior of Al–SiC functionally graded beams under in-plane thermal loading
| Autor: | Farshad Akhlaghi, Sahar Golmakaniyoon |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Materials science
Steady state General Computer Science General Physics and Astronomy chemistry.chemical_element 02 engineering and technology General Chemistry 021001 nanoscience & nanotechnology Curvature Stress (mechanics) Computational Mathematics chemistry.chemical_compound 020303 mechanical engineering & transports 0203 mechanical engineering Creep chemistry Mechanics of Materials Aluminium Thermal Silicon carbide Particle General Materials Science Composite material 0210 nano-technology |
| Zdroj: | Computational Materials Science. 121:182-190 |
| ISSN: | 0927-0256 |
| DOI: | 10.1016/j.commatsci.2016.04.038 |
| Popis: | Time-dependent steady state creep behavior of functionally graded beams subjected to thermal loading is investigated using a method of successive elastic solution. The functionally graded beams considered in this study are composites of aluminum containing silicon carbide particles with maximum particle contents of 25, 30 and 35 vol.%, but all with an average particle content of 20 vol.%. The steady state creep behavior is described using Norton equation. It is concluded that the steady state creep behavior of the FGMs can be divided into two stages. The first stage involves time dependent stresses followed by the second stage in which the stress remains constant with time. Moreover, both the thermal stress and the curvature of the FGM samples decrease with time during the steady state creep process. This effect is more pronounced for the sample with a higher gradient of particle concentration. |
| Databáze: | OpenAIRE |
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