Visualization and numerical analysis of fiber orientation on weld line in processing for fiber-reinforced composite materials
纤维增强复合材料加工过程中焊缝纤维取向的可视化和数值分析
基本信息
- 批准号:13650747
- 负责人:
- 金额:$ 1.41万
- 依托单位:
- 依托单位国家:日本
- 项目类别:Grant-in-Aid for Scientific Research (C)
- 财政年份:2001
- 资助国家:日本
- 起止时间:2001 至 2002
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
Flow-induced fiber orientation and concentration distributions were measured in a concentrated fiber suspension (CFS) and a dilute one (DFS). The channel has a thin slit geometry containing a circular cylinder.In the previous work, many researchers have qualitatively studied fiber orientation and concentration distributions in injection-molded products of fiber-reinforced plastics. In the present work, however, they are quantitatively estimated by direct observation of fibers in the concentrated suspension flow.For the CFS, some fibers rotate in an expansion part between the channel wall and the circular cylinder, and the fiber orientation becomes almost random state. On the other hand, fibers are perfectly aligned along the flow direction owing to the elongational flow near the centerline downstream of the cylinder. The fiber concentration has a flat distribution except near the channel wall and the centerline.For the DFS a minimum in the fiber concentration distribution was clearly observed on the centerline, and two peaks beside the centerline and near the channel wall. This characteristic distribution is caused by the fiber-wall and fiber-cylinder interactions. It is found that the obstacle such as the circular cylinder in the channel significantly affects the fiber orientation downstream of the obstacle for the CFD, while it affects the fiber concentration distribution for the DFS.
在浓纤维悬浮液(CFS)和稀纤维悬浮液(DFS)中测量了流动诱导的纤维取向和浓度分布。在以往的工作中,许多研究者定性地研究了纤维增强塑料注射成型制品中纤维的取向和浓度分布。对于CFS,部分纤维在通道壁面与圆柱体之间的膨胀段内旋转,纤维取向几乎呈随机状态。另一方面,由于圆筒下游中心线附近的拉伸流动,纤维沿着流动方向沿着完美排列。纤维浓度分布除靠近通道壁面和中心线处外呈平坦分布,在中心线处纤维浓度分布最小,在通道壁面和中心线附近有两个峰值。这种特征分布是由纤维-壁和纤维-柱体相互作用引起的。结果表明,对于CFD,通道中的圆柱体等障碍物对障碍物下游的纤维取向有显著影响,而对于DFS,障碍物对纤维浓度分布有显著影响。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
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YASUDA Kazunori其他文献
YASUDA Kazunori的其他文献
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{{ truncateString('YASUDA Kazunori', 18)}}的其他基金
Flow analysis in a nanoscale space using scanning electron microscope and its development to soft matter flow
使用扫描电子显微镜进行纳米尺度空间流动分析及其对软物质流动的发展
- 批准号:
25630053 - 财政年份:2013
- 资助金额:
$ 1.41万 - 项目类别:
Grant-in-Aid for Challenging Exploratory Research
Clarification of signal transmission mechanism in mesenchymal cells during spontaneous cartilage regeneration induced by multi-functional synthetic gel
多功能合成凝胶诱导自发软骨再生过程中间充质细胞信号传递机制的阐明
- 批准号:
23240070 - 财政年份:2011
- 资助金额:
$ 1.41万 - 项目类别:
Grant-in-Aid for Scientific Research (A)
Visualization and analysis of soft materials in nanoscale flow for Development of nanocomposites
纳米级流动中软材料的可视化和分析,用于纳米复合材料的开发
- 批准号:
23656411 - 财政年份:2011
- 资助金额:
$ 1.41万 - 项目类别:
Grant-in-Aid for Challenging Exploratory Research
Analyses on a molecular mechanism of spontaneous articular cartilage regeneration induced in vivo by double-network gel
双网络凝胶体内诱导关节软骨自发再生的分子机制分析
- 批准号:
20240045 - 财政年份:2008
- 资助金额:
$ 1.41万 - 项目类别:
Grant-in-Aid for Scientific Research (A)
Visualization and analysis of flow-induced structure in micro flow for production of nanofiber composite
用于生产纳米纤维复合材料的微流中流致结构的可视化和分析
- 批准号:
20560641 - 财政年份:2008
- 资助金额:
$ 1.41万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Analysis of flow-induced structure of polynieric fluid in a miatchannel for processing of nano composite materials
纳米复合材料加工微通道中多元流体的流动诱导结构分析
- 批准号:
18560667 - 财政年份:2006
- 资助金额:
$ 1.41万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Clarification of Mechanism of the Tendon/Ligament Matrix Remodeling Induced by Various Mesenchymal Cells and Its Molecular Control
阐明多种间充质细胞诱导肌腱/韧带基质重塑的机制及其分子调控
- 批准号:
16390425 - 财政年份:2004
- 资助金额:
$ 1.41万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
Velocity measurement of velocity profile of complex fluids through a microchannel and the effect of the channel size on the flow pattern
复杂流体通过微通道的速度分布的速度测量以及通道尺寸对流型的影响
- 批准号:
15560141 - 财政年份:2003
- 资助金额:
$ 1.41万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Integrated Analyses on adaptation and control mechanisms in remodeling of the extracellular matrix in the in situ frozen-thawed anterior cruciate ligament
原位冻融前交叉韧带细胞外基质重塑适应与控制机制综合分析
- 批准号:
12470299 - 财政年份:2000
- 资助金额:
$ 1.41万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
DEVELOPMENT OF HYBRID-TYPE ARTIFICIAL LIGAMENT COMPOSED OF BIOABSORBABLE SYNTHETIC FIBERS AND HUMAN COLLAGEN BIBER BUNDLES
由生物可吸收合成纤维和人体胶原蛋白束组成的混合型人工韧带的开发
- 批准号:
10558124 - 财政年份:1998
- 资助金额:
$ 1.41万 - 项目类别:
Grant-in-Aid for Scientific Research (B)