摘要
对完整复合材料圆柱壳轴向压缩性能进行了试验研究,得到了圆柱壳结构的破坏载荷和各测量点的载荷-应变曲线,通过分析得出结构的破坏形式为屈曲破坏。利用ANSYS有限元软件建立了模型,对复合材料圆柱壳进行屈曲分析,将有限元计算的结构变形和屈曲载荷与试验结果进行对比,计算结果与试验结果一致,验证了模型的有效性。利用建立的有限元模型,分析了开口尺寸和铺层角度对含矩形开口的复合材料圆柱壳屈曲载荷的影响。在开口处加装复合材料口盖对结构进行补强,补强后的柱壳结构满足强度设计要求。
The compression properties of composite cylindrical shell under axial compression load were tested,and the failure load and the load-strain curves for composite cylindrical shell of test points were collected.The results show that the damage form of the cylindrical shell is buckling failure.A relative finite element model was established and the buckling behaviors of composite cylindrical shell were analyzed by ANSYS software.The results obtained by simulation and experiment were consistent with each other,which validate the effective model.Based on the finite element model,the influences of opening size and fiber ply angle on buckling load of the cylindrical shell with rectangular opening were analyzed.A composite cover was installed to reinforce the structure,and the strength of the reinforced cylindrical shell meets the design requirement.
出处
《复合材料学报》
EI
CAS
CSCD
北大核心
2014年第3期781-787,共7页
Acta Materiae Compositae Sinica
基金
国家自然科学基金(50135010)
关键词
复合材料
圆柱壳
口盖
屈曲分析
有限元分析
composites
cylindrical shell
cover
buckling analysis
finite element analysis
