This study aims to clarify the relationship between the layer structure transition of fibers caused by the change in the flow field and the thermal properties and fiber interaction when the glass fiber content is changed. Polyamide 6 samples with different short glass fiber contents were prepared, and changes in layer structure during the flow process of injection molding were compared using X-ray computed tomography. An injection-molding simulation was performed to compare the changes in the layer structure of fibers during the flow process, and the temperature distribution and shear rate distribution were obtained by numerical analysis. Furthermore, the effect of fiber interaction on the layer structure transition of fibers was considered using a relaxation function composed of the fiber content, fiber shape factor, and strain rate.

中文翻译：

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纤维含量对使用短玻璃纤维增​​强材料的注塑产品内部纤维层结构形成的影响

这项研究旨在阐明由流场变化引起的纤维层结构转变与改变玻璃纤维含量时的热性能和纤维相互作用之间的关系。制备了具有不同玻璃短纤维含量的聚酰胺6样品，并使用X射线计算机断层扫描技术比较了注塑成型流程中层结构的变化。通过注塑模拟比较了纤维在流动过程中层结构的变化，并通过数值分析获得了温度分布和剪切速率分布。此外，使用由纤维含量，纤维形状因子和应变率组成的松弛函数来考虑纤维相互作用对纤维的层结构转变的影响。