M.Eng. Somjate Patcharaphun

Characterization and Simulation of Material Distribution and Fiber Orientation in Sandwich Injection Molded Parts

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http://nbn-resolving.de/urn:nbn:de:swb:ch1-200601845

Kurzfassung in Deutsch

In this work, the material distribution, structure of fiber orientation and fiber attrition in
sandwich and push-pull injection molded short fiber composites are investigated, regarding the
effect of fiber content and processing parameters, given its direct relevance to mechanical
properties. The prediction of the tensile strength of conventional, sandwich and push-pull
injection molded short fiber composites are derived by an analytical method of modified rule of
mixtures as a function of the area fraction between skin and core layers. The effects of fiber
length and fiber orientation on the tensile strength are studied in detail. Modeling of the
specialized injection molding processes have been developed and performed with the simulation
program in order to predict the material distribution and the fiber orientation state. The secondorder
orientation tensor (a11) approach is used to describe and calculate the local fiber
orientation state. The accuracy of the model prediction is verified by comparing with
corresponding experimental measurements to gain a further basic understanding of the melt flow
induced fiber orientation during sandwich and push-pull injection molding processes.

weitere Metadaten

Schlagwörter
Fiber length distribution
Schlagwörter
Fiber orientation distribution
Schlagwörter
Material distribution
Schlagwörter
Mechanical properties
Schlagwörter
Numerical simulation
Schlagwörter
Push-Pull injection molding
Schlagwörter
Sandwich injection molding
SWD SchlagworteFaserorientierung
SWD SchlagworteSpritzgießen
SWD SchlagworteSpritzgussteil
DDC Klassifikation620
Institution(en) 
HochschuleTU Chemnitz
FakultätFakultät für Maschinenbau
BetreuerProf. Dr.-Ing. Günter Mennig
GutachterProf. Dr.-Ing. Günter Mennig
Prof. Dr.-Ing. Johannes Wortberg
Prof. Dr.-Ing. Habil. Bernhard Wielage
DokumententypDissertation
SpracheEnglisch
Tag d. Einreichung (bei der Fakultät)21.05.2006
Tag d. Verteidigung / Kolloquiums / Prüfung29.09.2006
Veröffentlichungsdatum (online)09.10.2006
persistente URNurn:nbn:de:swb:ch1-200601845
QuelleSchriftenreihe Kunststoffe ; 5
ISBN3-939382-04-3
ISBN978-3-939382-04-1

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