对T800纤维增强复合材料加筋壁板进行压缩稳定性有限元分析和试验,研究加载端固支与四边简支条件下,边界条件对结构的屈曲模态和屈曲载荷的影响。有限元数值分析和试验结果表明,在不发生板平屈曲的条件下,两类不同的边界条件对屈曲模态和载荷都有所影响。同时,试验还有效地验证了有限元数值分析结果。通过有限元分析得到的屈曲载荷和模态与试验得到的结果也能较好地吻合。 The finite element analysis and experiment on the compression stability of T800 fiber reinforced composite stiffened wall were carried out. The influence of boundary conditions on the buckling mode and buckling load of the structure was studied under the condition of fixed ends with load and simply supported with four edges. Finite element analysis and experimental results show that under different conditions of flat plate buckling, two different types of boundary conditions affect the buckling modes and loads. At the same time, the experiment also validates the finite element numerical analysis results. The results of the buckling load and modal obtained by finite element analysis are in good agreement with the experimental ones.