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Analysis of Additive Alignment in a 90° Elbow Channel

机译：90°弯头通道中添加剂对准分析

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摘要

Short-fiber reinforced polymer composites have been widely used in industrial applications due to high strength-to-weight ratio, versatile manufacturing process, and etc. The alignment of fiber type additives plays an important role in the mechanical properties of a composite material. In this paper, an injection molding process was imitated with a liquid polymer composite flow inside a 90° elbow channel. We performed a flow visualization experiment and analyzed the additive alignment of carbon fiber flowing in the polydimethylsiloxane (PDMS) medium. By analyzing the flow visualization images, the angle changes at the corner region of the elbow channel were calculated. At the corner region, the change of passage direction leads to the change of fiber orientation. It was observed that near to the convex region, fibers have angle change values larger than the fibers traveling near to the concave region.
机译：由于高强度重量比，多功能制造过程等，纤维型添加剂的比对在工业应用中已广泛用于工业应用中。 本文用90°弯头通道内的液体聚合物复合物流模仿注射成型方法。 我们进行了流动可视化实验，并分析了在聚二甲基硅氧烷（PDMS）介质中流动的碳纤维的添加剂取向。 通过分析流量可视化图像，计算弯头通道的角区的角度变化。 在角部区域，通道方向的变化导致纤维方向的变化。 观察到，靠近凸起区域，纤维具有比靠近凹部的纤维大的角度变化值。

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