dc.contributor.author | Ahmed, Alauddin | en |
dc.contributor.author | Alexandrou, Andreas N. | en |
dc.coverage.spatial | New York, NY, United States | en |
dc.creator | Ahmed, Alauddin | en |
dc.creator | Alexandrou, Andreas N. | en |
dc.date.accessioned | 2019-05-06T12:23:13Z | |
dc.date.available | 2019-05-06T12:23:13Z | |
dc.date.issued | 1994 | |
dc.identifier.isbn | 0-7918-1362-2 | |
dc.identifier.uri | http://gnosis.library.ucy.ac.cy/handle/7/48147 | |
dc.description.abstract | Recently the importance of processing metals and metal matrix composites in semi-solid state is growing rapidly. Performing the shape making operations in the semi-solid state provides a better opportunity to control the microstructure of the final product. In this paper we are presenting a numerical approach to simulate the compression molding of semi-solid materials. A phenomenological constitutive relation based on the Bingham fluid model and the Power-law model is proposed. The model has four adjustable parameters. These parameters are evaluated by comparing with the experimental results. Results are presented for Sn-15%Pb alloy system. The model is then used to describe the unsteady flow of semi-solid materials in compression molding. The Generalized Eulerian-Lagrangian (GEL) formulation is used to locate the free surface while maintaining the solid boundaries. Yielded and unyielded portions of the charge are identified. | en |
dc.language.iso | eng | en |
dc.publisher | Publ by ASME | en |
dc.source | American Society of Mechanical Engineers, Fluids Engineering Division (Publication) FED | en |
dc.subject | Mathematical models | en |
dc.subject | Control | en |
dc.subject | Numerical methods | en |
dc.subject | Unsteady flow | en |
dc.subject | Compression molding | en |
dc.subject | Bingham fluid model | en |
dc.subject | Semi solid materials | en |
dc.subject | Adjustable parameters | en |
dc.subject | Free surfaces | en |
dc.subject | Generalized Eulerian Lagrangian model | en |
dc.subject | Lead alloys | en |
dc.subject | Liquid metals | en |
dc.subject | Metal molding | en |
dc.subject | Metallic matrix composites | en |
dc.subject | Metallographic microstructure | en |
dc.subject | Microstructure control | en |
dc.subject | Non Newtonian flow | en |
dc.subject | Phenomenological constitutive equation | en |
dc.subject | Power law model | en |
dc.subject | Shear thickening Bingham fluids | en |
dc.subject | Surfaces | en |
dc.subject | Tin alloys | en |
dc.subject | Tin lead alloys | en |
dc.title | Processing of semi-solid materials using a shear-thickening Bingham fluid model | en |
dc.type | info:eu-repo/semantics/conferenceObject | |
dc.description.volume | 179 | |
dc.description.startingpage | 83 | |
dc.description.endingpage | 87 | |
dc.author.faculty | Πολυτεχνική Σχολή / Faculty of Engineering | |
dc.author.department | Τμήμα Μηχανικών Μηχανολογίας και Κατασκευαστικής / Department of Mechanical and Manufacturing Engineering | |
dc.type.uhtype | Conference Object | en |
dc.description.totalnumpages | 83-87 | |