径向冲击下复合材料层合圆柱壳的动力屈曲

基金项目: 国家自然科学基金

详细信息

DYNAMIC BUCKLING OF LAMINATED COMPOSITE CYLINDRICAL SHELLS SUBJECTED TO RADIAL IMPACT

Department of Naval Architecture and Ocean Engineering, Shanghai Jiao Tong University, Shanghai 200030

摘要

摘要: 采用Lagrange方程导出包含横向剪切变形和转动惯量的复合材料层合圆柱壳径向脉冲屈曲控制方程;用四阶Runge-Kuta方法对方程数值求解,寻找占优屈曲模态数及对应于允许初缺陷放大值时的临界冲击速度;通过计算碳/环氧材料角铺设层合圆柱壳,讨论了横向剪切变形、壳体几何尺寸、铺层角度等因素对层合圆柱壳动力屈曲的影响.
- 复合材料 /
- 复合材料结构 /
- 层合圆柱壳 /
- 动力屈曲 /
- 脉冲屈曲
Abstract: Ananalysis was given to the dynamic pulse buckling of a finite-length laminated composite cylindrical shell subjected to uniform radial impact. The buckling equations including transverse shear deformation and rotatory inertia were derived from Lagrange equation. According to numerical results generated by the fourth-order Runge-Kutt a method, the number of the most amplified mode and critical velocity were obtained. Finally, the effects of transverse shear, geometric parameter and lamination angle on the behavior of dynamic buckling of laminated cylindrical shells were discussed.
- composite material /
- composite structure /
- laminated cylindrical shell /
- dynamic buckling /
- pulse buckling