Non-axisymmetric dynamic buckling of composite cylindrical shells

被引：0
|
作者：
Meng H. [1 ]
Han Z. [1 ]
Lu G. [2 ]
机构：
[1] College of Mechanics, Taiyuan University of Technology, Taiyuan
[2] College of Architecture and Civil Engineering, Taiyuan University of Technology, Taiyuan
来源：
Zhendong yu Chongji/Journal of Vibration and Shock | 2017年 / 36卷 / 11期
关键词：
Analytical solution; Composite; Dynamic buckling; Non-axisymmetric; Stress wave;
D O I：
10.13465/j.cnki.jvs.2017.11.005
中图分类号：
学科分类号：
摘要：
Considering effects of stress wave, the governing equation for non-axisymmetric dynamic buckling of composite cylindrical shells under an axial step load was derived using Hamilton principle. The expression of radial displacement function along the circumferential direction was assumed according to its continuity along the circumferential direction. The analytical solution to the critical load of the dynamic buckling of a composite cylindrical shell and its buckling modes were derived with the variable separation method before the reflection of stress wave. Comparing the critical load with that gained with Ritz method, it was shown that the difference between the two critical loads is equal to the influence term due to rotary inertia. The influences of diameter-thickness ratio, and ply orientation, etc. on the critical load were analyzed with a self-compiled MATLAB-based code. The results showed that the effect of rotary inertia on the critical load can be neglected; the higher the circumferential mode order, the larger the critical load and the more complex the corresponding buckling mode shape. © 2017, Editorial Office of Journal of Vibration and Shock. All right reserved.
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页码：27 / 30and78
页数：3051
相关论文
共 9 条
  • [1] Shaw D., Shen Y.L., Tsai P., Dynamic buckling of an imperfect composite circular cylindrical shell, Computers & Structures, 48, 3, pp. 467-472, (1993)
  • [2] Tang W., Chen T., Axially asymmetrical dynamic buckling of composite cylindrical shells, Journal of Shanghai Jiaotong University, 32, 11, pp. 62-70, (1998)
  • [3] Xu X.S., Ma J.Q., Lim C.W., Et al., Dynamic local and global buckling of cylindrical shells under axial impact, Engineering Structures, 31, 5, pp. 1132-1140, (2009)
  • [4] Xu X.S., Ma Y., Lim C.W., Et al., Dynamic buckling of cylindrical shells subject to an axial impact in a symplectic system, International Journal of Solids and Structures, 43, 13, pp. 3905-3919, (2006)
  • [5] Rahman T., Jansen E.L., Gurdal Z., Dynamic buckling analysis of composite cylindrical shells using a finite element based perturbation method, Nonlinear Dynamics, 66, 3, pp. 389-401, (2011)
  • [6] Bisagni C., Numerical analysis and experimental correlation of composite shell buckling and post-buckling, Composites Part B: Engineering, 31, 8, pp. 655-667, (2000)
  • [7] Bisagni C., Dynamic buckling of fiber composite shells under impulsive axial compression, Thin-Walled Structures, 43, 3, pp. 499-514, (2005)
  • [8] Patel S.N., Bisagni C., Datta P.K., Dynamic buckling analysis of a composite stiffened cylindrical shell, Structural Engineering and Mechanics, 37, 5, pp. 509-527, (2011)
  • [9] Tafreshi A., Buckling and post-buckling analysis of composite cylindrical shells with cutouts subjected to internal pressure and axial compression loads, International Journal of Pressure Vessels and Piping, 79, 5, pp. 351-359, (2002)
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