Strategies for coupled analysis of thermal strain history during continuous solidification processes

The mathematical investigation of thermal crack formation during continuous solidification processes is characterised by a fully coupled analysis of solidification and further cooling, strand contraction and resulting thermal stresses. Due to variable and inhomogeneous cooling conditions each just s...

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Bibliographic Details
Published in:Advances in engineering software (1992) 1998-08, Vol.29 (7), p.679-697
Main Authors: Boehmer, J.R., Funk, G., Jordan, M., Fett, F.N.
Format: Article
Language:English
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Summary:The mathematical investigation of thermal crack formation during continuous solidification processes is characterised by a fully coupled analysis of solidification and further cooling, strand contraction and resulting thermal stresses. Due to variable and inhomogeneous cooling conditions each just solidified strand volume element, frozen and wedged in the matrix of neighbouring elements, has its own thermal load history, and it is drawn in line to the casting direction. For the mechanical part, a thermo-inelastic and contact problem with phase transformation, transient loadings, and moving boundary conditions is to be solved. Two different approaches to adapt Finite Element analysis to the demands of transient initial and boundary conditions are compared and discussed with regard to methodology, application areas, advantages, and disadvantages.
ISSN:0965-9978
DOI:10.1016/S0965-9978(98)00033-7