Effects of Resin Flow Behavior at the Confluence of Flow Front on Fiber Orientation

DOI Web Site Web Site 7 References

Bibliographic Information

Other Title
  • フローフロント合流部の樹脂流動挙動が繊維配向に与える影響
  • フローフロント ゴウリュウブ ノ ジュシ リュウドウ キョドウ ガ センイハイコウ ニ アタエル エイキョウ

Search this article

Abstract

<p>In anticipation of global regulations on CO2emissions and the introduction of electric vehicles, etc., there is a growing need to reduce the weight of transportation equipment, which has led to the replacement of metal parts with plastic. Fiber reinforced plastics (FRP) are used in transportation equipment because of their high strength. However, in injection molded FRP, anisotropy of mechanical properties caused by the fiber orientation arising from the resin flow is generated. This anisotropy makes it difficult to predict the features that are required in products. Therefore, prediction of fiber orientation is important for predicting the functions of fiber-reinforced plastic injection-molded products. In previous reports, fiber orientation behavior has been observed in specimens with simple resin flow, such as flat plates. However, in order to accurately predict the properties of the actual part geometry, it is necessary to clarify the complex fiber orientation mechanism of the flow. In this paper, we observe the fiber orientation of the flat part and rib part sections of two points gated flat plate with rib. We also investigate the fiber orientation mechanism by directly visualizing the resin flow in the flow front confluence at the rib base. As a result, rib fibers after the flow front confluence formed a five-layered structure oriented in the flow direction in the center of the wall, thereby displaying a different form from that hitherto reported.</p>

Journal

  • Seikei-Kakou

    Seikei-Kakou 33 (8), 289-293, 2021-07-20

    The Japan Society of Polymer Processing

References(7)*help

See more

Keywords

Details 詳細情報について

Report a problem

Back to top