Numerical and Experimental Validation of Natural Fiber Orientation in Viscous Fluid of Injection Cavity

In an injection moulded product, the orientation of short fiber in polymer composite influences the strength of the product. A method was developed to predict orientation of natural fiber in thermoset composite. The purpose of this investigation is to predict the orientation of natural fiber in a vi...

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Main Authors: K. Rajasekaran, Jimi Tjong, S.K. Nayak, Mohini Sain
Format: Article
Language:English
Published: Taylor & Francis Group 2017-09-01
Series:Journal of Natural Fibers
Subjects:
Online Access:http://dx.doi.org/10.1080/15440478.2016.1266290
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author K. Rajasekaran
Jimi Tjong
S.K. Nayak
Mohini Sain
author_facet K. Rajasekaran
Jimi Tjong
S.K. Nayak
Mohini Sain
author_sort K. Rajasekaran
collection DOAJ
description In an injection moulded product, the orientation of short fiber in polymer composite influences the strength of the product. A method was developed to predict orientation of natural fiber in thermoset composite. The purpose of this investigation is to predict the orientation of natural fiber in a viscous fluid and to study fiber flow in mould cavity. An experimental set up was developed on injecting viscous fluid with short natural inside the transparent mould cavity and visualize the orientation of short natural fiber and flow front during filling period of cavity. The proposed model for natural fiber orientation was derived by coupling the tangential orientation of natural fiber in flow front and constant curling factor in angular velocity of fluid element. The orientation angle was predicted through proposed model at specified position and was validated with experimental method through digitized image analysis technique.
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spelling doaj.art-4675e8e07b364902b34f94273ddf22342023-09-22T14:19:06ZengTaylor & Francis GroupJournal of Natural Fibers1544-04781544-046X2017-09-0114563464410.1080/15440478.2016.12662901266290Numerical and Experimental Validation of Natural Fiber Orientation in Viscous Fluid of Injection CavityK. Rajasekaran0Jimi Tjong1S.K. Nayak2Mohini Sain3University of TorontoUniversity of TorontoCentral Institute of Plastics Engineering & Technology (CIPET)University of TorontoIn an injection moulded product, the orientation of short fiber in polymer composite influences the strength of the product. A method was developed to predict orientation of natural fiber in thermoset composite. The purpose of this investigation is to predict the orientation of natural fiber in a viscous fluid and to study fiber flow in mould cavity. An experimental set up was developed on injecting viscous fluid with short natural inside the transparent mould cavity and visualize the orientation of short natural fiber and flow front during filling period of cavity. The proposed model for natural fiber orientation was derived by coupling the tangential orientation of natural fiber in flow front and constant curling factor in angular velocity of fluid element. The orientation angle was predicted through proposed model at specified position and was validated with experimental method through digitized image analysis technique.http://dx.doi.org/10.1080/15440478.2016.1266290fibers orientationflow analysisflow frontinjection molding processmathematical modelshort natural fiber
spellingShingle K. Rajasekaran
Jimi Tjong
S.K. Nayak
Mohini Sain
Numerical and Experimental Validation of Natural Fiber Orientation in Viscous Fluid of Injection Cavity
Journal of Natural Fibers
fibers orientation
flow analysis
flow front
injection molding process
mathematical model
short natural fiber
title Numerical and Experimental Validation of Natural Fiber Orientation in Viscous Fluid of Injection Cavity
title_full Numerical and Experimental Validation of Natural Fiber Orientation in Viscous Fluid of Injection Cavity
title_fullStr Numerical and Experimental Validation of Natural Fiber Orientation in Viscous Fluid of Injection Cavity
title_full_unstemmed Numerical and Experimental Validation of Natural Fiber Orientation in Viscous Fluid of Injection Cavity
title_short Numerical and Experimental Validation of Natural Fiber Orientation in Viscous Fluid of Injection Cavity
title_sort numerical and experimental validation of natural fiber orientation in viscous fluid of injection cavity
topic fibers orientation
flow analysis
flow front
injection molding process
mathematical model
short natural fiber
url http://dx.doi.org/10.1080/15440478.2016.1266290
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