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Titolo: PREDICTION OF THERMALSTRESSES DURING VERTICAL SOLIDIFICATION OF A PURE METAL WITH DENSITY CHANGE
Autore: LEE JH; HWANG KY;
 Indirizzi:
 YONSEI UNIV,DEPT MECH ENGN SEOUL 120749 SOUTH KOREA
 Titolo Testata:
 Journal of materials processing technology
fascicolo: 12,
volume: 57,
anno: 1996,
pagine: 85  94
 SICI:
 09240136(1996)57:12<85:POTDVS>2.0.ZU;22
 Fonte:
 ISI
 Lingua:
 ENG
 Soggetto:
 ELEMENT; MODEL; STEEL;
 Tipo documento:
 Article
 Natura:
 Periodico
 Settore Disciplinare:
 Science Citation Index Expanded
 Citazioni:
 24
 Recensione:
 Indirizzi per estratti:



 Citazione:
 J.H. Lee e K.Y. Hwang, "PREDICTION OF THERMALSTRESSES DURING VERTICAL SOLIDIFICATION OF A PURE METAL WITH DENSITY CHANGE", Journal of materials processing technology, 57(12), 1996, pp. 8594
Abstract
A numerical methodology for the calculation of the thermal stresses in a solidifying body with volume contraction due to solidliquid density change is developed and applied to the vertical solidification of pure aluminum. In this algorithm, the phasechange heattransfer analysis is performed by a finitevolume method (FVM) and the thermalstresses analysis in a solidifying body by a finiteelement method (FEM). Difficulties associated with the timedependent solid and liquid domains, the shapes of which are also a part of the solutions, are overcome by employing the boundaryfitted coordinate system. A hypoelasticviscoplastic constitutive model and a rate form of the principle of virtualwork are involved to model the stresses and the deformation. The effect of various cooling rates on the motion of the solidliquid interface, on the temperatures and on the thermal stresses is presented and discussed.
ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 09/08/20 alle ore 23:00:06