Study on the Design-induced Fiber Orientation and Their Influences on Warpage in Injection Fiber Reinforced Plastic (FRP) Parts
學年 108
學期 2
出版（發表）日期 2020-05-05
作品名稱 Study on the Design-induced Fiber Orientation and Their Influences on Warpage in Injection Fiber Reinforced Plastic (FRP) Parts
作品名稱（其他語言）
著者 Jia-Hao Chu; Chao-Tsai (CT) Huang; Chia Hsu; Wei-Wen Fu; Sheng-Jye Hwang
單位
出版者
著錄名稱、卷期、頁數 SPE Technical Papers, ANTEC2020-040(7 pages)
摘要 Due to its excellent properties, the fiber-reinforced plastics (FRP) material has been applied into industry as one of the major lightweight technologies, especially for automotive or aerospace products. However, since the microstructures of fiber inside plastic matrix are very complex, they are not easy to be visualized and managed. Specifically, the connection from microstructures to the physical properties of the final product is far from our understanding. In this study, we have tried to correlate from fiber microstructure feature to macro-property for fiber reinforced thermoplastic (FRP) in injection molding process. Specifically, we have designed an injection molding system with three standard specimens based on ASTM D638 where those specimens have different gate designs. The different gate design can change flow behavior and further provide different fiber orientation distribution (FOD) features. In the presence of fibers, the warpage of the full model can be diminished significantly. In addition, the improvement of mechanical property by introducing fiber into PP, in the case study, either through the side gate or the sprue gate, the tensile strength of PP+SF is over three times than that of pure PP. However, it is noted that the strength of Model I (side gate design) is always greater than that of Model II (sprue gate design) experimentally in the same injection molded part. The reason why the tensile strength of Model I is greater than that of Model II, it is due to the design-induced fiber orientation to melt which will further enhance the tensile strength of Model I. Finally, a series simulation studies with FOD have been performed. Results of FOD difference are consistent with the observation of the tensile strength difference.
關鍵字 lightweight; fiber-reinforced plastics (FRP); injection molding; fiber microstructure
語言 en_US
ISSN
期刊性質 國外
收錄於 EI
產學合作
通訊作者 黃招財
審稿制度 是
國別 USA
公開徵稿
出版型式 ,電子版
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