工艺与制造英文2024被引 4
连续碳纤维增强热塑性复合材料3D打印中的耦合传热-结晶分析：模拟与实验验证
Coupled heat transfer–crystallization analysis in continuous carbon fiber-reinforced thermoplastic composites 3D printing: simulation and experimental validation
Hadi Parviz, M. Eder, Ali Sarhadi · Technical University of Denmark
摘要整理
本研究提出了一种先进的渐进式数值建模方法，用于研究连续碳纤维增强共聚酰胺(Copa)复合材料3D打印过程中的传热现象。采用单元激活技术和主动冷却方法模拟材料挤出过程，并在打印过程中动态更新热边界条件。对复合材料和纯聚合物样品进行了差示扫描量热法(DSC)测试，以获取结晶行为数据，基于DSC测试结果采用Hoffman-Lauritzen模型进行结晶建模。研究表明，所提出的建模方法与Hoffman-Lauritzen结晶模型耦合，能够准确预测复合材料挤出物沉积后的热历史。对于纯聚合物，所建立的有限元模型结果与现有文献结果相符。利用热成像技术进行的原位温度测量结果与为连续纤维增强Copa复合材料3D打印开发的传热模型预测结果高度一致，验证了该模型预测打印过程中温度分布的能力。该研究为优化连续纤维增强热塑性复合材料的3D打印工艺参数提供了重要的理论基础。
相关论文
A review of recent developments in natural fibre composites and their mechanical performance
Composites Part A Applied Science and Manufacturing · 2015
Non-invasive electrical and magnetic stimulation of the brain, spinal cord, roots and peripheral nerves: Basic principles and procedures for routine clinical and research application. An updated report from an I.F.C.N. Committee
Clinical Neurophysiology · 2015
Lignocellulosic biomass: a sustainable platform for the production of bio-based chemicals and polymers
Polymer Chemistry · 2015
Design for Additive Manufacturing: Trends, opportunities, considerations, and constraints
CIRP Annals · 2016
Nanoimprint Lithography: Methods and Material Requirements
Advanced Materials · 2007
Nanocomposites: synthesis, structure, properties and new application opportunities
Materials Research · 2009
← 返回论文库整理：复材站编辑部