关于跑道和溢流区域设计对多腔系统中流光纤合的影响的研究
Fang-Lin Hsieh1, Chuan-Tsen Chen1, Shyh-Shin Hwang2
1Department of Chemical and Materials Engineering, Tamkang University, New Taipei City 251301, Taiwan.
Polymers
|May 11, 2024
概括
本研究研究了在纤维增强复合材料 (FRP) 加工中的流纤维合效应. 引入溢出区域延迟了这种效应,影响了纤维的方向和部分收缩.
科学领域:
- 材料科学 材料科学 材料科学
- 聚合物工程 聚合物工程
- 计算流体动力学的流体动力学.
背景情况:
- 纤维增强复合材料 (FRP) 在航空航天和汽车行业至关重要,因为它们的强度与重量比高.
- 在FRP加工中,流-纤维合效应对于材料特性至关重要,尚未完全理解.
- 在工业加工过程中精确控制纤维方向对于优化复合材料性能至关重要.
研究的目的:
- 为了研究跑道和溢流设计对FRP注塑中的流-纤维合效应的影响.
- 分析模具设计如何影响纤维方向和随后的部件收缩.
- 阐明聚合物化处理过程中流-纤维相互作用的机制.
主要方法:
- 使用一个几何对称的1x4多孔模具系统与ASTM D638型V标准样品.
- 采用理论模拟分析与实验验证相结合.
- 分析了注射部件的纤维方向分布和几何尺寸.
主要成果:
- 对称的运行器设计确保在模具腔中保持一致的纤维方向.
- 在模拟中包括流-纤维合会增加喷雾压力和核心层厚度.
- 溢流区域延迟了流-纤维合效应,改变了纤维方向,从流向向横流/厚度方向.
- 延迟合导致填充末端区域的不对称收缩.
结论:
- 溢流区的设计通过扩大化流量控制的主导地位,显著影响了流-纤维合效应.
- 这种合延迟会影响纤维的方向,并导致异型收缩.
- 了解和控制流-纤维合效应是优化FRP零件设计和性能的关键.
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