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Simulation of cryst...
Simulation of crystallization evolution of polyoxymethylene during microinjection molding cycle
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- Anass, Benayad (author)
- Université de Lyon,Universite Sidi Mohamed Ben Abdellah,Chouaib Doukkali University
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- M'hamed, Boutaous (author)
- Université de Lyon
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- Rabie, El Otmani (author)
- Chouaib Doukkali University
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- Abdelhadi, El Hakimi (author)
- Universite Sidi Mohamed Ben Abdellah
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- Abdelhannid, Touache (author)
- Universite Sidi Mohamed Ben Abdellah
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- Musa, Kamal R. (author)
- McGill University
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- Salim, Derdouri (author)
- National Research Council Canada
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- Refaa, Zakariaa, 1987 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Dennis, Siginer (author)
- Universidad de Santiago de Chile,University of Santiago, Chile,Botswana International University of Science and Technology
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(creator_code:org_t)
- 2019-12-04
- 2020
- English.
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In: Polymers for Advanced Technologies. - : Wiley. - 1042-7147 .- 1099-1581. ; 31:4, s. 838-852
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Abstract
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- A mathematical model coupled with a numerical investigation of the evolving material properties due to thermal and flow effects and in particular the evolution of the crystallinity during the full microinjection molding cycle of poly (oxymethylene) POM is presented using a multi-scale approach. A parametric analysis is performed, including all the steps of the process using an asymmetrical stepped contracting part. The velocity and temperature fields are discussed. A parabolic distribution of the velocity across the part thickness, and a temperature rise in the thin zone toward the wall have been obtained. It is attributed to the viscous energy dissipation during the filling phase, but also to the involved characteristic times for the thermal behavior of the material. Depending on the molding conditions and the locations within the micro-part, different evolution of crystallization rates are obtained leading to at least three to five morphological layers, obtained in the same part configuration of a previously work, allowing a clear understanding of the process-material interaction.
Subject headings
- NATURVETENSKAP -- Fysik -- Annan fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Other Physics Topics (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Annan materialteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Other Materials Engineering (hsv//eng)
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Keyword
- morphology
- microinjection molding
- computer modeling
- viscous dissipation
- crystallization kinetics
Publication and Content Type
- art (subject category)
- ref (subject category)
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Anass, Benayad
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M'hamed, Boutaou ...
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Rabie, El Otmani
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Abdelhadi, El Ha ...
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Abdelhannid, Tou ...
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Musa, Kamal R.
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show more...
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Salim, Derdouri
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Refaa, Zakariaa, ...
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Dennis, Siginer
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- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Other Physics To ...
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- ENGINEERING AND TECHNOLOGY
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ENGINEERING AND ...
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and Materials Engine ...
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and Other Materials ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Condensed Matter ...
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Polymers for Adv ...
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Chalmers University of Technology