Erbts, Patrick Partitioned solution strategies for electro-thermo-mechanical problems applied to the field-assisted sintering technology Fortschr.-Ber. VDI Reihe 18 Nr. 345. Düsseldorf: VDI Verlag 2016. 216 Seiten, 69 Bilder, 29 Tabellen. ISBN 978-3-18-334518-2, ISSN 0178-9457, ¤ 76,00/VDI-Mitgliederpreis ¤ 68,40. Keywords: Field-assisted sintering technology -Multi-field simulation -Partitioned coupling algorithm -Electro-thermo-mechanical modeling -Radiative heat transfer -Numerical thermal

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... diation -Convergence acceleration -Fluid-structure interaction -Coupled problems Dedicated to engineers and scientists in the field of coupled problems and computational mechanics, this thesis addresses partitioned solution strategies for electro-thermo-mechanically coupled problems applied to the field-assisted sintering technology (FAST). By simultaneously applying uniaxial pressure and an electric current to generate high heating rates, the FAST process offers short production cycles for sintering materials. To approach the process conditions at high temperatures in a realistic and holistic way radiative heat transfer is numerically treated as an additional field. Finally, a fully coupled four-field problem is composed where for the electric, thermal and mechanical fields the finite element method is applied while solving the radiation field using computational fluid dynamic (CFD) solvers. The numerical results are compared to experiments. Moreover, an in-depth study of coupling algorithms is carried out to improve the convergence of the partitioned solution procedure. Bibliographische Information der Deutschen Bibliothek Die Deutsche Bibliothek verzeichnet diese Publikation in der Deutschen Nationalbibliographie; detaillierte bibliographische Daten sind im Internet unter http://dnb.ddb.de abrufbar.