单向CF/PPS预浸料在热冲压过程中的预浸料-工具滑动模型

IF 8.1 2区材料科学 Q1 ENGINEERING, MANUFACTURING

Composites Part A: Applied Science and Manufacturing Pub Date : 2025-08-13 DOI:10.1016/j.compositesa.2025.109239

Wenwu Zhang , He Liao , Lidong Wang , Xiongqi Peng

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引用次数: 0

摘要

利用自制的下拉测试系统，研究了单向碳纤维/聚苯硫醚（UD CF/PPS）预浸料在热冲压过程中的预浸料-工具滑移行为。系统研究了金属表面、脱模剂、工艺参数（温度、法向力、滑移速度）对脱模效果的影响。试验结果表明存在两种主要的滑移模式：滑移屈服和滑移松弛。此外，滑移后残余应力和Stribeck分析显示，表面韧性和脱模剂与预浸液-工具滑移特性显著相关。基于实验结果，提出了一种简单的现象学滑移模型来表征预浸液-工具滑移行为。然后将该模型作为用户定义的VFRIC子例程集成到Abaqus/Explicit中以进行验证。本研究通过对预浸料-工具滑移机理的分析，为优化热塑性复合材料热成型工艺提供了理论见解和实践指导。

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A prepreg-tool slipping model for unidirectional CF/PPS prepreg during hot-stamping process

Using a home-made pull-through testing system, the prepreg-tool slipping behavior of unidirectional carbon fiber/polyphenylene sulfide (UD CF/PPS) prepreg in hot-stamping process was investigated. The influences of metal surface, release agent and processing parameters (temperature, normal force and slipping velocity) were systematically studied. Experimental results indicated the presence of two predominant slipping modes: slip-yield and slip-relaxation. In addition, the after-slip residual stress and Stribeck analysis revealed a significant correlation of surface toughness and release agent with prepreg-tool slipping characteristics. Based on the experimental results, a simple phenomenological slipping model was proposed to characterize the prepreg-tool slipping behavior. The model was then integrated into Abaqus/Explicit as a user-defined VFRIC subroutine for the purpose of verification. This research provides theoretical insights and practical guidance for optimizing thermoplastic composite thermoforming processes through prepreg-tool slipping mechanism analysis.

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来源期刊

Composites Part A: Applied Science and Manufacturing 工程技术-材料科学：复合

CiteScore

15.20

自引率

5.70%

发文量

492

审稿时长

30 days

期刊介绍： Composites Part A: Applied Science and Manufacturing is a comprehensive journal that publishes original research papers, review articles, case studies, short communications, and letters covering various aspects of composite materials science and technology. This includes fibrous and particulate reinforcements in polymeric, metallic, and ceramic matrices, as well as 'natural' composites like wood and biological materials. The journal addresses topics such as properties, design, and manufacture of reinforcing fibers and particles, novel architectures and concepts, multifunctional composites, advancements in fabrication and processing, manufacturing science, process modeling, experimental mechanics, microstructural characterization, interfaces, prediction and measurement of mechanical, physical, and chemical behavior, and performance in service. Additionally, articles on economic and commercial aspects, design, and case studies are welcomed. All submissions undergo rigorous peer review to ensure they contribute significantly and innovatively, maintaining high standards for content and presentation. The editorial team aims to expedite the review process for prompt publication.