Numerical Prediction of Flow Induced Fibers Orientation in Injection Molded Polymer Composites

Since the filling stage of injection molding process has important effect on the determination of the orientation state of the fibers, accurate analysis of the flow field for the mold filling stage becomes a necessity. The aim of the paper is to characterize the flow induced orientation state of sho...

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Main Authors:	A. N., Oumer, N. M., Hamidi, Idris, Mat Sahat
Format:	Conference or Workshop Item
Language:	English
Published:	2015
Subjects:	TJ Mechanical engineering and machinery
Online Access:	http://umpir.ump.edu.my/id/eprint/10190/ http://umpir.ump.edu.my/id/eprint/10190/ http://umpir.ump.edu.my/id/eprint/10190/1/fkm-2015-nurye-Numerical%20Prediction.pdf

id	ump-10190
recordtype	eprints
spelling	ump-101902018-02-19T04:22:24Z http://umpir.ump.edu.my/id/eprint/10190/ Numerical Prediction of Flow Induced Fibers Orientation in Injection Molded Polymer Composites A. N., Oumer N. M., Hamidi Idris, Mat Sahat TJ Mechanical engineering and machinery Since the filling stage of injection molding process has important effect on the determination of the orientation state of the fibers, accurate analysis of the flow field for the mold filling stage becomes a necessity. The aim of the paper is to characterize the flow induced orientation state of short fibers in injection molding cavities. A dog-bone shaped model is considered for the simulation and experiment. The numerical model for determination of the fibers orientation during mold-filling stage of injection molding process was solved using Computational Fluid Dynamics (CFD) software called MoldFlow. Both the simulation and experimental results showed that two different regions (or three layers of orientation structures) across the thickness of the specimen could be found: a shell region which is near to the mold cavity wall, and a core region at the middle of the cross section. The simulation results support the experimental observations that for thin plates the probability of fiber alignment to the flow direction near the mold cavity walls is high but low at the core region. It is apparent that the results of this study could assist in decisions regarding short fiber reinforced polymer composites. 2015 Conference or Workshop Item NonPeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/10190/1/fkm-2015-nurye-Numerical%20Prediction.pdf A. N., Oumer and N. M., Hamidi and Idris, Mat Sahat (2015) Numerical Prediction of Flow Induced Fibers Orientation in Injection Molded Polymer Composites. In: The 3rd International Conference on Mechanical Engineering Research (ICMER 2015), 18-19 August 2015 , Zenith Hotel, Kuantan, Pahang, Malaysia. pp. 1-8.. (Unpublished) http://icmer.ump.edu.my/
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Malaysia Pahang
building	UMP Institutional Repository
collection	Online Access
language	English
topic	TJ Mechanical engineering and machinery
spellingShingle	TJ Mechanical engineering and machinery A. N., Oumer N. M., Hamidi Idris, Mat Sahat Numerical Prediction of Flow Induced Fibers Orientation in Injection Molded Polymer Composites
description	Since the filling stage of injection molding process has important effect on the determination of the orientation state of the fibers, accurate analysis of the flow field for the mold filling stage becomes a necessity. The aim of the paper is to characterize the flow induced orientation state of short fibers in injection molding cavities. A dog-bone shaped model is considered for the simulation and experiment. The numerical model for determination of the fibers orientation during mold-filling stage of injection molding process was solved using Computational Fluid Dynamics (CFD) software called MoldFlow. Both the simulation and experimental results showed that two different regions (or three layers of orientation structures) across the thickness of the specimen could be found: a shell region which is near to the mold cavity wall, and a core region at the middle of the cross section. The simulation results support the experimental observations that for thin plates the probability of fiber alignment to the flow direction near the mold cavity walls is high but low at the core region. It is apparent that the results of this study could assist in decisions regarding short fiber reinforced polymer composites.
format	Conference or Workshop Item
author	A. N., Oumer N. M., Hamidi Idris, Mat Sahat
author_facet	A. N., Oumer N. M., Hamidi Idris, Mat Sahat
author_sort	A. N., Oumer
title	Numerical Prediction of Flow Induced Fibers Orientation in Injection Molded Polymer Composites
title_short	Numerical Prediction of Flow Induced Fibers Orientation in Injection Molded Polymer Composites
title_full	Numerical Prediction of Flow Induced Fibers Orientation in Injection Molded Polymer Composites
title_fullStr	Numerical Prediction of Flow Induced Fibers Orientation in Injection Molded Polymer Composites
title_full_unstemmed	Numerical Prediction of Flow Induced Fibers Orientation in Injection Molded Polymer Composites
title_sort	numerical prediction of flow induced fibers orientation in injection molded polymer composites
publishDate	2015
url	http://umpir.ump.edu.my/id/eprint/10190/ http://umpir.ump.edu.my/id/eprint/10190/ http://umpir.ump.edu.my/id/eprint/10190/1/fkm-2015-nurye-Numerical%20Prediction.pdf
first_indexed	2023-09-18T22:09:32Z
last_indexed	2023-09-18T22:09:32Z
_version_	1777414934023372800

Numerical Prediction of Flow Induced Fibers Orientation in Injection Molded Polymer Composites

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