复合材料科学与工程 ›› 2026, Vol. 0 ›› Issue (4): 115-123.DOI: 10.19936/j.cnki.2096-8000.20260428.014

• 设计与工艺 • 上一篇    下一篇

全复合材料波纹夹芯圆柱壳轴压屈曲行为解析预测

周文婷1, 王从1, 王艳霞2, 马苗立3   

  1. 1.石家庄理工职业学院 智能制造与技术学院,石家庄 050228;
    2.石家庄铁道大学 交通运输学院,石家庄 050043;
    3.北京石油化工学院 信息工程学院,北京 102627
  • 收稿日期:2025-11-17 发布日期:2026-06-16
  • 作者简介:周文婷(1990—),女,硕士,讲师,主要从事复合材料力学与结构设计方面的研究,zwt08220@ 163.com。
  • 基金资助:
    河北省重大科技支撑计划项目(252Y5401D)

Analytical prediction of axial compression buckling behavior of all-composite corrugated sandwich cylindrical shell

ZHOU Wenting1, WANG Cong1, WANG Yanxia2, MA Miaoli3   

  1. 1. School of Intelligent Manufacturing and Technology, Shijiazhuang Institute of Technology, Shijiazhuang 050228, China;
    2. School of Traffic and Transportation, Shijiazhuang Tiedao University, Shijiazhuang 050043, China;
    3. School of Information Engineering, Beijing Institute of Petrochemical Technology, Beijing 102627, China
  • Received:2025-11-17 Published:2026-06-16

摘要: 针对全复合材料纵向连续梯形波纹圆柱壳轴压线性屈曲行为,提出便于工程应用的解析预测方法。该方法计算分析效率高,能区分胞元间面板屈曲、波纹腹板屈曲、夹芯壁板屈曲和圆柱壳整体屈曲等4种屈曲失稳模式,对应计算出的屈曲临界应力与三维有限元仿真结果的误差在±12%以内。基于验证过的解析公式开展参数分析,协同分析了复合材料波纹夹芯圆柱壳屈曲临界应力和失稳模式随结构、铺层参数的变化规律,绘制了失稳机制图。研究发现:全复合材料波纹夹芯圆柱壳不易发生夹芯壁板屈曲,增大波纹倾斜角度或芯子壁板厚度能提高屈曲临界应力;保持所有几何尺寸不变,屈曲临界应力和失稳模式会随面板、芯子铺层角度的变化而变化,胞元间面板屈曲临界应力和波纹腹板屈曲临界应力均在45°时达到极值。

关键词: 复合材料, 波纹夹芯圆柱壳, 屈曲临界应力, 屈曲失稳模式, 失稳机制

Abstract: For the axial linear buckling behavior of all-composite longitudinally continuous trapezoidal corrugated the cylindrical shell, an analytical prediction method convenient for engineering application was proposed. This method was highly efficient for calculation and analysis, and could distinguish four buckling instability modes: intracellular face buckling, corrugation buckling, sandwich panel buckling and cylindrical shell global buckling. The errors between the calculated critical buckling stress and the 3D finite element simulation results were within ±12%. Based on the validated analytical formulas, parameters analysis were conducted to collaboratively analyze the variations of buckling critical stress, instability modes of the composite corrugated sandwich cylindrical shell with structural and layup parameters, and failure mechanism diagrams were drawn. It is found that all-composite corrugated sandwich cylindrical shells are not prone to sandwich panel buckling; increasing the corrugation inclination angle or the thickness of the wall of the core can improve the buckling critical stress; with all geometric dimensions unchanged, buckling critical stress and instability modes also vary with the ply angles of the face and the core, and the critical stress of intracellular face buckling and of corrugation buckling reach their extreme values at 45°.

Key words: composite materials, corrugated sandwich cylindrical shell, critical buckling stress, buckling instability mode, instability mechanism

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