Observations of the stress developed in Si inclusions following plastic flow in the matrix of an Al–Si–Mg alloy
| Autor: | Cameron Davidson, J.R. Griffiths, Trevor R Finlayson, E C Oliver, Michael E. Fitzpatrick, Qigui Wang |
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| Rok vydání: | 2017 |
| Předmět: |
010302 applied physics
Materials science Metallurgy 02 engineering and technology Plasticity 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Physics::Geophysics Stress (mechanics) Residual stress Tension (geology) 0103 physical sciences Compression (geology) Levy–Mises equations Composite material 0210 nano-technology Elastic modulus Stress intensity factor |
| Zdroj: | Philosophical Magazine. 97:1398-1417 |
| ISSN: | 1478-6443 1478-6435 |
| DOI: | 10.1080/14786435.2017.1296978 |
| Popis: | Measurements are made of the stress developed in near-spherical elastic inclusions in an elastic plastic matrix under both tension and compression loading. Two experimental conditions are reported. The first case is where no thermal mismatch exists between the inclusions and the matrix, so that the stress in the inclusion is purely a result of the misfit in the elastic moduli and of the distortion of the plastic slip-line field around the inclusion. The observations are believed to be the first such and are in qualitative agreement with finite-element modelling for idealised inclusion distributions. The second case is the more usual one where a thermal misfit stress exists and observations are reported of the stress relief effects caused by the interaction of the plasticity-induced stress with the thermal and elastic misfit stresses. |
| Databáze: | OpenAIRE |
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