聚酰亚胺复合材料J形筋条壁板的压缩性能研究

doi:10.19936/j.cnki.2096-8000.20260828.008

复合材料科学与工程 ›› 2026, Vol. 0 ›› Issue (8): 61-69.DOI: 10.19936/j.cnki.2096-8000.20260828.008

聚酰亚胺复合材料J形筋条壁板的压缩性能研究

钟小丹¹, 黄超然², 王号森², 高宗战^2*, 耿小亮²

1.沈阳飞机设计研究所结构部,沈阳 110066;
2.西北工业大学力学与交通运载工程学院,西安 710129

收稿日期:2025-11-05 出版日期:2026-08-28 发布日期:2026-09-24
通讯作者: 高宗战(1979—),男,博士,副教授,研究方向为飞行器结构设计、分析与实验,gzz@ nwpu.edu.cn。
作者简介:钟小丹(1985—),男,博士,高级工程师,研究方向为航空先进复合材料结构技术。

Compressive behavior of J-type stiffened panels made of polyimide composite

ZHONG Xiaodan¹, HUANG Chaoran², WANG Haosen², GAO Zongzhan^2*, GENG Xiaoliang²

1. Structure Department, Shenyang Aircraft Design and Research Institute, Shenyang 110066, China;
2. School of Mechanics and Transportation Engineering, Northwestern Polytechnical University, Xi’an 710129, China

Received:2025-11-05 Online:2026-08-28 Published:2026-09-24

摘要/Abstract

摘要： 本文针对聚酰亚胺复合材料J形加筋壁板在常温与高温(350 ℃)环境下的压缩性能进行仿真分析和试验研究。通过常温与350 ℃下的壁板压缩试验,获取壁板结构屈曲载荷、破坏载荷、应变随载荷变化规律及结构失效模式。基于顺序耦合法,开展壁板压缩仿真分析,研究了单侧热环境下壁板温度分布和热应变,揭示高温状态下壁板压缩失效过程、屈曲载荷和破坏模式。研究发现:高温环境下壁板抗压缩能力减弱,尤其是后屈曲承载能力减弱非常明显;高温与常温下的壁板失效模式相似,均为纤维层间失效;仿真结果与试验结果吻合较好,误差在10%以内。本文研究可为聚酰亚胺复合材料加筋壁板在高温服役条件下的性能预测与工程应用提供理论与试验依据。

关键词: 聚酰亚胺复合材料, J形加筋壁板, 压缩稳定性, 高温环境, 顺序耦合法

Abstract: This study conducts both numerical simulations and experimental investigations on the compressive behavior of J-type stiffened panels made of polyimide composite under ambient and high-temperature (350 ℃) conditions. Compression tests at room temperature and 350 ℃ were performed to obtain the buckling load, failure load, strain-load relationships, and structural failure modes of the panels. Based on a sequential coupling method, finite-element simulations were carried out to analyze the temperature distribution and thermal strain of the panels under one-sided heating, revealing the compressive failure process, buckling load, and failure patterns at elevated temperature. The results show that high-temperature exposure significantly weakens the compressive capacity of the panels, especially the post-buckling load-carrying ability. The failure modes at both high and ambient temperatures are similar, characterized mainly by inter laminar fiber failure. The simulation results agree well with the experimental data, with errors within 10%. This research provides both theoretical and experimental foundations for performance prediction and engineering application of polyimide composite stiffened panels under high-temperature service conditions.

Key words: polyimide composite, J-type stiffened panel, compressive behavior, high-temperature environment, sequential coupling method

中图分类号:

TB332

钟小丹, 黄超然, 王号森, 高宗战, 耿小亮. 聚酰亚胺复合材料J形筋条壁板的压缩性能研究[J]. 复合材料科学与工程, 2026, 0(8): 61-69.

ZHONG Xiaodan, HUANG Chaoran, WANG Haosen, GAO Zongzhan, GENG Xiaoliang. Compressive behavior of J-type stiffened panels made of polyimide composite[J]. COMPOSITES SCIENCE AND ENGINEERING, 2026, 0(8): 61-69.

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聚酰亚胺复合材料J形筋条壁板的压缩性能研究

Compressive behavior of J-type stiffened panels made of polyimide composite

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