华中科技大学学报（自然科学版）2026，Vol.54Issue(4)：80-87,8.DOI:10.13245/j.hust.250454
静水压力作用下夹层复合材料圆柱壳的屈曲特性
Buckling characteristics of sandwich composite cylindrical shells under hydrostatic pressure
摘要
Abstract
Based on the first-order shear deformation theory and finite-element simulation analysis,the buckling characteristics and influencing factors of sandwich composite pressure-resistant cylindrical shells under hydrostatic pressure loads were studied.First,based on the first-order shear deformation theory and the energy method,the buckling governing equations of sandwich composite cylindrical shells under hydrostatic pressure loads were derived.Then,by expanding the displacement function using a double-trigonometric function method,a theoretical solution method for the elastic buckling load of sandwich composite cylindrical shells with simply supported ends was presented.Finally,in the numerical examples,by comparing with the theoretical solutions of existing studies and the finite-element simulation values of the elastic buckling of sandwich composite cylindrical shells,the maximum error was 5.6％,verifying the correctness of the proposed method.Based on the proposed method and finite-element simulations,the influence laws of parameters such as the surface winding angle,the length-diameter ratio of the shell,the elastic modulus and thickness of the core material on the structural buckling load,as well as the applicable scope of the proposed method,were respectively studied.关键词
夹层复合材料/圆柱壳/耐压壳体/一阶剪切变形理论/静水压力/屈曲Key words
sandwich composites/cylindrical shells/pressure hull/first-order shear deformation theory/hydrostatic pressure/buckling分类
数理科学引用本文复制引用
李华东,杨锴,吕岩松,陈国涛..静水压力作用下夹层复合材料圆柱壳的屈曲特性[J].华中科技大学学报（自然科学版）,2026,54(4):80-87,8.基金项目
国家自然科学基金资助项目(51609252) （51609252）
海军工程大学自主研发项目(2023505080). （2023505080）
