Processing induced properties in glassy polymers: application of structural relaxation to yield stress development

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25 Citaties (Scopus)

Uittreksel

A method is presented to predict the yield stress distribution throughout an injection molded product of an amorphous polymer as it results from processing conditions. The method employs the concept of structural relaxation combined with a fictive temperature following the Tool-Narayanaswamy-Moynihan formalism. The thermal history, as it is experienced by the material during processing, is obtained by means of numerical simulation of the injection molding process. The resulting predictions of yield stress distributions show to be in excellent agreement with experimental findings, both for different mold temperatures, as for different part thicknesses.
TaalEngels
Pagina's1212-1225
TijdschriftJournal of Polymer Science, Part B: Polymer Physics
Volume44
Nummer van het tijdschrift8
DOI's
StatusGepubliceerd - 2006

Vingerafdruk

Structural relaxation
stress distribution
Yield stress
Stress concentration
Polymers
injection molding
polymers
Processing
Injection molding
histories
injection
formalism
Temperature
temperature
Computer simulation
products
predictions
simulation
Hot Temperature

Citeer dit

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abstract = "A method is presented to predict the yield stress distribution throughout an injection molded product of an amorphous polymer as it results from processing conditions. The method employs the concept of structural relaxation combined with a fictive temperature following the Tool-Narayanaswamy-Moynihan formalism. The thermal history, as it is experienced by the material during processing, is obtained by means of numerical simulation of the injection molding process. The resulting predictions of yield stress distributions show to be in excellent agreement with experimental findings, both for different mold temperatures, as for different part thicknesses.",
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Processing induced properties in glassy polymers: application of structural relaxation to yield stress development. / Engels, T.A.P.; Govaert, L.E.; Peters, G.W.M.; Meijer, H.E.H.

In: Journal of Polymer Science, Part B: Polymer Physics, Vol. 44, Nr. 8, 2006, blz. 1212-1225.

Onderzoeksoutput: Bijdrage aan tijdschriftTijdschriftartikelAcademicpeer review

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AU - Meijer,H.E.H.

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