复合材料科学与工程 ›› 2021, Vol. 0 ›› Issue (8): 18-24.DOI: 10.19936/j.cnki.2096-8000.20210828.003

• 基础研究 • 上一篇    下一篇

格构腹板增强泡沫夹芯复合材料梁准静态压陷试验

黎冲, 方海*, 祝露, 钱震, 李晓龙   

  1. 南京工业大学 土木工程学院,南京211816
  • 收稿日期:2020-12-14 出版日期:2021-08-28 发布日期:2021-09-09
  • 通讯作者: 方海(1981-),男,博士,教授,主要从事复材结构方面的研究,fanghainjut@163.com。
  • 作者简介:黎冲(1995-),男,硕士研究生,主要从事复材结构方面的研究。
  • 基金资助:
    国家自然科学基金(52078248);江苏省杰出青年基金(BK20190034)

Quasi-static compression test of lattice web reinforced foam sandwich composite beam

LI Chong, FANG Hai*, ZHU Lu, QIAN Zhen, LI Xiao-long   

  1. College of Civil Engineering, Nanjing Tech University, Nanjing 211816, China
  • Received:2020-12-14 Online:2021-08-28 Published:2021-09-09

摘要: 采用真空导入成型工艺,制备以聚氨酯泡沫为芯材,以玻璃纤维增强复合材料为面板和格构腹板的双向格构腹板增强泡沫夹芯复合材料梁。对普通泡沫夹芯梁和格构腹板增强泡沫夹芯梁进行准静态压陷性能测试并进行对比分析。结果表明:格构腹板增强泡沫夹芯梁相对于普通泡沫夹芯梁,其抗压陷能力得到了显著提升,通过理论推导得出格构腹板增强泡沫夹芯复合材料梁准静态压陷表达式,并且与试验进行对比,结果较吻合。

关键词: 格构腹板, 准静态压陷, 泡沫夹芯, 复合材料

Abstract: The vacuum introduction molding process is used to prepare a two-way lattice web reinforced foam sandwich composite beam with polyurethane foam as the core material and glass fiber reinforced composite material as the panel and lattice web. The quasi-static compression performance test and comparative analysis of ordinary foam sandwich beam and lattice web reinforced foam sandwich beam are carried out. The results show that compared with ordinary foam sandwich beams, the compression resistance of the lattice web reinforced foam sandwich beam has been significantly improved. Through theoretical deduction, the quasi-static compression expression of the lattice web reinforced foam sandwich composite beam is obtained. And compared with the experiment, the results are consistent.

Key words: lattice web, quasi-static compression, foam sandwich, composites

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