Experimental and numerical analysis of new thermoplastic composite mandrels

IF 2.3 3区材料科学 Q3 MATERIALS SCIENCE, COMPOSITES

Journal of Reinforced Plastics and Composites Pub Date : 2024-09-08 DOI:10.1177/07316844241278529

Siyu Chen, Longfei Cai, Xin Zhang, Xishuang Jing, Chengyang Zhang

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引用次数: 0

Abstract

In the field of aerospace, the application of carbon fiber composite parts is increasing year by year. As an important factor in the manufacturing of composite parts, tools play a crucial role in the manufacturing accuracy of composite parts, and composite tools have higher accuracy to better meet the manufacturing requirements. In this study, the properties of the novel thermoplastic composite mandrel of the new polymethyl methacrylate matrix are further investigated and a model is proposed to simulate the curing and spring back process of the composite part with the proposed composite mandrel. In detail, the glass transition temperature test and dynamic frequency test were carried out for the thermoplastic composite mandrel. The material constitutive equation of the thermoplastic composite mandrel was constructed based on the experimental data, and the accuracy of the constitutive equation of thermoplastic matrix material was verified by tensile experiments of matrix materials under constant strain conditions. Finally, the simulation result is compared with the fabricated part, and the effectiveness of the proposed method has been verified. This proved that the developed constitutive model of thermoplastic composite mandrel can effectively predict the curing deformation of composite parts with complex structures.

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新型热塑性复合材料芯模的实验和数值分析

在航空航天领域，碳纤维复合材料零件的应用逐年增加。作为制造复合材料零件的重要因素，工具对复合材料零件的制造精度起着至关重要的作用，而复合材料工具具有更高的精度，能更好地满足制造要求。本研究进一步研究了新型聚甲基丙烯酸甲酯基体的新型热塑性复合材料芯模的性能，并提出了一个模型来模拟复合材料芯模与复合材料零件的固化和回弹过程。具体而言，对热塑性复合材料芯棒进行了玻璃化温度测试和动态频率测试。根据实验数据构建了热塑性复合材料芯棒的材料构成方程，并通过恒应变条件下基体材料的拉伸实验验证了热塑性基体材料构成方程的准确性。最后，将模拟结果与制件进行比较，验证了所提方法的有效性。这证明了所建立的热塑性复合材料芯模构成模型能够有效预测结构复杂的复合材料部件的固化变形。

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来源期刊

Journal of Reinforced Plastics and Composites 工程技术-材料科学：复合

CiteScore

5.40

自引率

6.50%

发文量

审稿时长

1.3 months

期刊介绍： The Journal of Reinforced Plastics and Composites is a fully peer-reviewed international journal that publishes original research and review articles on a broad range of today''s reinforced plastics and composites including areas in: Constituent materials: matrix materials, reinforcements and coatings. Properties and performance: The results of testing, predictive models, and in-service evaluation of a wide range of materials are published, providing the reader with extensive properties data for reference. Analysis and design: Frequency reports on these subjects inform the reader of analytical techniques, design processes and the many design options available in materials composition. Processing and fabrication: There is increased interest among materials engineers in cost-effective processing. Applications: Reports on new materials R&D are often related to the service requirements of specific application areas, such as automotive, marine, construction and aviation. Reports on special topics are regularly included such as recycling, environmental effects, novel materials, computer-aided design, predictive modelling, and "smart" composite materials. "The articles in the Journal of Reinforced Plastics and Products are must reading for engineers in industry and for researchers working on leading edge problems" Professor Emeritus Stephen W Tsai National Sun Yat-sen University, Taiwan This journal is a member of the Committee on Publication Ethics (COPE).