中国塑料 ›› 2025, Vol. 39 ›› Issue (3): 53-59.DOI: 10.19491/j.issn.1001-9278.2025.03.010

• 加工与应用 • 上一篇    下一篇

基于动态高分子基复合材料的一体化T型加筋壁板力学性能仿真研究

张勋, 刘翔, 方梅, 郭攀(), 冯跃战(), 黄明, 刘春太   

  1. 郑州大学橡塑模具国家工程研究中心,工业装备结构分析优化与CAE软件全国重点实验室,郑州 450002
  • 收稿日期:2024-11-11 出版日期:2025-03-26 发布日期:2025-03-24
  • 通讯作者: 郭攀(1982—)男,讲师,计算力学,panguo@zzu.edu.cn
    冯跃战(1988—)男,副教授,高分子基复合材料,yzfeng@zzu.edu.cn
    E-mail:panguo@zzu.edu.cn;yzfeng@zzu.edu.cn
  • 基金资助:
    国家重点研发计划(2019YFA0706802)

Simulation on mechanical performance of integrated T⁃shaped reinforced wall panel based on carbon fiber reinforced dynamic polymer composites

ZHANG Xun, LIU Xiang, FANG Mei, GUO Pan(), FENG Yuezhan(), HUANG Ming, LIU Chuntai   

  1. National Engineering Research Center for Advanced Polymer Processing Technology,State Key Laboratory of Structural Analysis,Optimization and CAE Software for Industrial Equipment,Zhengzhou University,Zhengzhou 450002,China
  • Received:2024-11-11 Online:2025-03-26 Published:2025-03-24
  • Contact: GUO Pan, FENG Yuezhan E-mail:panguo@zzu.edu.cn;yzfeng@zzu.edu.cn

摘要:

采用双酚A二缩水甘油酯醚(DGEBA)和固化剂戊二酸酐(GA)为树脂基体与单向碳纤维进行预浸复合,制备具有动态可逆性能以及优异力学性能表现的碳纤维预浸带。热压固化后对样条进行拉伸、压缩、剪切、应力松弛及蠕变力学性能测试,获得复合材料基本力学性能。根据力学测试结果,对二次胶接成型、一体化成型T型加筋壁板进行建模,并采用有限元方法开展多工况仿真分析。结果表明,相较于传统二次胶接成型结构壁板,在拉伸、压缩、弯曲、冲击工况下,外部载荷相同时,一体化成型结构壁板最大形变量分别降低了28.57 %、28.57 %、28.04 %、8.27 %;屈曲失稳时,一体化成型结构壁板的临界载荷提高了84.69 %,同时各角度铺层最大变形处的纵向应变均有较大提升,表现出更为优异的抗屈曲性能。

关键词: 碳纤维增强复合材料, 动态高分子, 飞机壁板, 力学性能, 有限元仿真

Abstract:

The prepreg tape with dynamic reversibility and excellent mechanical properties were prepared by using bisphenol⁃A diglycidyl ether as a resin matrix, glutaric anhydride as a curing agent, carbon fiber as a reinforcement. The tensile, compressive, bending, stress relaxation, and creep properties of the composites after hot pressing were investigated. According to The mechanical test results, the solid modeling was conducted for the secondary bonding forming and integrated forming structure panel, and a finite element simulation analysis was carried out. The results indicated that compared to the traditional secondary bonding forming structure panel, the maximum deformation of the integrated forming structure panel decreased by 28.57 %, 28.57 %, 28.04 % and 8.27 % under tension, compression, bending, and impact conditions, respectively, at the same external load. When buckling instability occurred, the critical load of the integrated structure panel increased by 84.69 %, and its longitudinal strain at the maximum deformation at each angle was greatly improved, demonstrating excellent anti⁃buckling performance.

Key words: carbon fiber reinforced composites, dynamic polymer, aircraft panel, mechanical property, finite element simulation

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