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Paper Information

Journal:   IRANIAN JOURNAL OF POLYMER SCIENCE AND TECHNOLOGY (PERSIAN)   OCTOBER-NOVEMBER 2008 , Volume 21 , Number 4 (ISSUE NO. 96); Page(s) 329 To 338.
 
Paper: 

RESIN FLOW IN FIBER PREFORMED BY VACUUM ASSISTED RESIN TRANSFER MOLDING WITH FLEXIBLE TOOLS

 
 
Author(s):  MEHRDAD SHOKRIEH MAHMOUD*, ATASHIPOUR S.R.
 
* COMPOSITES RESEARCH LABORATORY, MECHANICAL ENGINEERING DEPARTMENT, IRAN UNIVERSITY OF SCIENCE AND TECHNOLOGY, TEHRAN, IRAN
 
Abstract: 

Vacuum assisted resin transfer molding, as a sub-branch of RTM is a method of manufacturing composite specimens. Considering the industrial development of this method, different modified techniques are designed to improve its performance. Among these techniques, using a half flexible mold is regarded as an important method. In this work, dominant equations of resin flow through the mold in polar coordinates are solved analytically. Based on this approach, closed-form solutions have been presented for different parameters such as thickness variation of preformed fiber, resin pressure, resin velocity and fiber volume fraction as functions of two variables, namely, time and the distance from injection port. After verification of the approach employed in this work, the results are presented. Important parameters influencing the quality and the rate production are studied in detail.

 
Keyword(s): POLYMER COMPOSITE, VACUUM ASSISTED RESIN TRANSFER MOLDING, FLEXIBLE TOOL, PREFORMED FIBERS, PROCESSING
 
References: 
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