Simulation of inverse heat conduction problems in fusion welding with extended analytical heat source models
- The paper presents bounded volume heat sources and the corresponding functional-analytical expressions for the temperature field. The power density distributions considered here are normal, exponential and parabolic. The sources model real heat sources like the welding arc, laser beam, electron beam, etc., the convection in the weld pool as well as the latent heat due to fusion and solidification. The parameters of the heat source models are unknown a priori and have to be evaluated by solving an inverse heat conduction problem. The functional-analytical technique for calculating 3D temperature fields in butt welding is developed. The proposed technique makes it possible to reduce considerably the total time for data input and solution. It is demonstrated with an example of laser beam welding of steel plates.
Autor*innen: | Victor Karkhin, Andreas PittnerORCiD, Christopher Schwenk, Michael RethmeierORCiD |
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Dokumenttyp: | Zeitschriftenartikel |
Veröffentlichungsform: | Verlagsliteratur |
Sprache: | Englisch |
Titel des übergeordneten Werkes (Englisch): | Frontiers of materials science |
Jahr der Erstveröffentlichung: | 2011 |
Verlag: | Springer |
Verlagsort: | Secaucus, N.J. |
Jahrgang/Band: | 5 |
Ausgabe/Heft: | 2 |
Erste Seite: | 119 |
Letzte Seite: | 125 |
Freie Schlagwörter: | Functional-analytical solution; Inverse modelling; Laser beam welding; Volume heat source |
DOI: | 10.1007/s11706-011-0137-1 |
ISSN: | 2095-025X |
ISSN: | 2095-0268 |
Verfügbarkeit des Dokuments: | Datei im Netzwerk der BAM verfügbar ("Closed Access") |
Datum der Freischaltung: | 19.02.2016 |
Referierte Publikation: | Nein |