多腔拉挤型材夹芯复合材料板受弯试验与理论分析

doi:10.19936/j.cnki.2096-8000.20260828.002

复合材料科学与工程 ›› 2026, Vol. 0 ›› Issue (8): 11-18.DOI: 10.19936/j.cnki.2096-8000.20260828.002

多腔拉挤型材夹芯复合材料板受弯试验与理论分析

韩娟¹, 陈忱², 方海^2*

1.江苏开放大学建筑工程学院,南京 210036;
2.南京工业大学土木工程学院,南京 211816

收稿日期:2025-06-20 出版日期:2026-08-28 发布日期:2026-09-24
通讯作者: 方海(1981—),男,博士,教授,硕士生/博士生导师,研究方向为复合材料结构、桥梁防撞,fanghainjut@ 163.com。
作者简介:韩娟(1987—),女,博士,讲师,研究方向为复合材料结构、桥梁防撞。
基金资助:
国家自然科学基金(52378241);南京市建设行业科技计划项目(Ks2335)

Flexural test and theoretical analysis of multi cavity pultruded profile sandwich composite panel

HAN Juan¹, CHEN Chen², FANG Hai^2*

1. College of Architectural Engineering, Jiangsu Open University, Nanjing 210036, China;
2. College of Civil Engineering, Nanjing Tech University, Nanjing 211816, China

Received:2025-06-20 Online:2026-08-28 Published:2026-09-24

摘要/Abstract

摘要： 本文提出了一种新型多腔拉挤型材夹芯复合材料板,该夹芯板由纤维增强复合材料面板、腹板及拉挤型材芯材组成。通过四点弯曲试验研究了多腔拉挤型材夹芯复合材料板的受弯性能,试验结果表明,多腔拉挤型材夹芯复合材料板的破坏模式基本为芯材剪切和面板受压。极限承载力随着纤维铺层数的增加而增大,增加芯材纤维铺层最大可提升20.32%的极限承载力,增加整体面板纤维铺层最大可提升28.04%的极限承载力。增大多腔拉挤型材夹芯复合材料板的高宽比,极限承载力最大可提高40.46%。多腔拉挤型材夹芯复合材料板的极限承载力是泡沫夹芯复合材料板的204.90%,比强度和比刚度也高于泡沫夹芯复合材料板。此外,采用经典夹芯板理论计算所得多腔拉挤型材夹芯复合材料板的理论等效抗弯刚度值,与试验结果吻合较好。

关键词: 拉挤型材, 弯曲性能, 纤维增强复合材料

Abstract: This paper presents a novel multi-cavity pultruded profile sandwich composite panel with a pultruded profile core and fiber-reinforced web panels and webs. The bending performance of the multi-cavity pultruded profile sandwich composite panel was investigated using four-point bending tests. The test results showed that the multi-cavity pultruded profile sandwich composite panels exhibitedcore shear and panel compression damage. The ultimate load-carrying capacity increases with the increase of the number of fiber layers, and the increase of the core fiber layer can improve the maximum ultimate load carrying capacity of 20.32%, and the increase of the overall panel fiber layer can improve the maximum ultimate load carrying capacity of 28.04%. Increasing the aspect ratio of pultruded profile sandwich composite panels increases the ultimate load carrying capacity by a maximum of 40.46%. The ultimate bearing capacity of multi-cavity pultruded profile sandwich composite panel is 204.90% of that of foam sandwich composite panel, and the specific strength and specific stiffness are also higher than those of foam sandwich composite panel. In addition, the theoretical equivalent flexural stiffness values of the pultruded profile sandwich composite panels were calculated using the classical sandwich theory, which were in good agreement with the test results.

Key words: pultruded profiles, bending performance, fiber-reinforced composites

中图分类号:

TB332

韩娟, 陈忱, 方海. 多腔拉挤型材夹芯复合材料板受弯试验与理论分析[J]. 复合材料科学与工程, 2026, 0(8): 11-18.

HAN Juan, CHEN Chen, FANG Hai. Flexural test and theoretical analysis of multi cavity pultruded profile sandwich composite panel[J]. COMPOSITES SCIENCE AND ENGINEERING, 2026, 0(8): 11-18.

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多腔拉挤型材夹芯复合材料板受弯试验与理论分析

Flexural test and theoretical analysis of multi cavity pultruded profile sandwich composite panel

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