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Please use this identifier to cite or link to this item:
http://hdl.handle.net/2108/1447
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| Title: | Phase transformations in electrically conductive ferromagnetic shape-memory alloys, their thermodynamics and analysis |
| Authors: | Tomas, Roubicek
Giuseppe, Tomassetti |
| Keywords: | magnetostriction
martensitic transformation
ferro/paramagnetic transformation
eddy currents
weak solutions |
| Issue Date: | 1-Oct-2012 |
| Abstract: | A thermodynamically-consistent general continuum-mechanical model describing mutually coupled martensitic and ferro/paramagnetic phase transformations in electrically-conductive magnetostrictive materials such as NiMnGa is derived, using the small-strain and eddy-current approximations. Yet, large velocities and electric current injected through boundary are allowed. Fully nonlinear coupling of magneto-mechanical and thermal effects is considered. The existence of energy-preserving weak solutions is proved by
showing convergence of time-discrete approximations constructed by a carefully designed semi-implicit regularized scheme. |
| URI: | http://hdl.handle.net/2108/1447 |
| Appears in Collections: | Research studies
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| tr-gt-magnetostriction-torvergatapreprint.pdf | | 501Kb | Adobe PDF | View/Open |
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