摘要
为了分析夹芯复合材料箱形导梁的挠度,采用理论和数值分析相结合的方法,计算了夹芯复合材料箱形导梁的挠度。将夹芯复合材料箱形导梁等效为等刚度等跨度的各向同性箱形梁,应用初等梁理论计算了考虑剪切变形的箱形导梁挠度。建立了夹芯复合材料箱形导梁的有限元模型,得到了夹芯复合材料箱形导梁挠度的数值解。解析解与数值解吻合良好,说明了夹芯复合材料箱形导梁挠度计算的正确性。
In order to analyze the flexibility of box nose girder made of sandwich composite materials, it was solved by the analytical and the numerical methods. Flexibility of the girder was calculated theoretically by being equivalent to an isotropy box girder with equal stiffness and span and using primary beam theory, under consideration of shear deformation. A finit element model of the girder was estab- lished, its numerical result was obtained by the model. The analytical solution is accorded with that of finite element method well, which shows that the methods of solving flexibility of the girder are correct.
出处
《兵工学报》
EI
CAS
CSCD
北大核心
2009年第8期1061-1065,共5页
Acta Armamentarii
关键词
固体力学
夹芯复合材料
箱形导梁
有限元方法
挠度分析
solid mechanics
sandwich composite materials
box nose girder
finite element method
flexibility analysis
