Shear Buckling Analysis and Optimization of Composite Laminates Using Perturbation GDQ Method

被引：0
|
作者：
Sun S. [1 ]
Zhang B. [1 ]
Hu Z. [1 ]
机构：
[1] School of Aeronautical Manufacturing Engineering, Nanchang Hangkong University, Nanchang
来源：
Zhongguo Jixie Gongcheng/China Mechanical Engineering | 2019年 / 30卷 / 16期
关键词：
Composite laminate; Perturbation generalized differential quadrature(GDQ) method; Shear buckling; Stacking sequence optimization;
D O I：
10.3969/j.issn.1004-132X.2019.16.007
中图分类号：
学科分类号：
摘要：
There was poor accuracy, calculation oscillation and non-convergence for the cases of shear buckling responses of composite laminates by using GDQ method. The example study found that the problems came from the singular load matrix, therefore, the perturbation GDQ method was proposed to realize the stable and efficient solution of shear buckling problems for composite laminates, by disturbing the main diagonal weight coefficients to improve the singularity of the load matrix. Numerical examples demonstrate the validity of the perturbed GDQ method. The stacking sequence of composite laminates including shear loads was optimized combined perturbation GDQ method with the direct search simulated annealing algorithm. The results show that the ply numbers and lay forms of composite laminates have little effects on the optimum ply under shear loads, and optimized layup angle tends to 60° with the increasing of aspect ratio. Under combined loads of shear and axial compression, the relatively small shear forces may improve the buckling behavior of laminates, while the optimized buckling performances are gradually reduced and the optimum ply is converged to the ply of shear loads with the increasing of shear forces. The results provide a reference for the shear buckling performance design of composite laminates. © 2019, China Mechanical Engineering Magazine Office. All right reserved.
引用
收藏
页码：1931 / 1939and1949
相关论文
共 23 条
  • [11] Liu Q., Qiao P., Guo X., Et al., Approximate Formulas for Shear Buckling of Orthotropic Plates, Engineering Mechanics, 31, 3, pp. 32-38, (2014)
  • [12] Liu Q.H., Qiao P.Z., Guo X.W., Buckling Analysis of Restrained Orthotropic Plates under Combined In-plane Shear and Axial Loads and Its Application to Web Local Buckling, Composite Structures, 111, 11, pp. 540-552, (2014)
  • [13] Chen Q.Y., Qiao P.Z., Shear Buckling of Rotationally-restrained Composite Laminated Plates, Thin-Walled Structures, 94, pp. 147-154, (2015)
  • [14] Shu C., Du H.J., A Generalized Approach for Implementing General Boundary Condition in the GDQ Free Vibration Analysis of Plates, International Journal of Solids and Structures, 34, 7, pp. 837-846, (1997)
  • [15] Shu C., Differential Quadrature and Its Application in Enginerring, pp. 95-120, (2000)
  • [16] Kadkhodayan M., Maarefdoust M., Elastic/Plastic Buckling of Isotropic Thin Plates Subjected to Uniform and Linearly Varying In-plane Loading Using Incremental and Deformation Theories, Aerospace Science and Technology, 32, 1, pp. 66-83, (2014)
  • [17] Li W., Zeng Z., Han X., Stability of a Beam on Elastic Foundation Subjected to a Tangential Force, Journal of Vibration and Shock, 33, 8, pp. 192-195, (2014)
  • [18] Darvizeh M., Darvizeh A., Ansari R., Et al., Buckling Analysis of Generally Laminated Composite Plates, Composite Structures, 63, 1, pp. 69-74, (2004)
  • [19] Maarefdoust M., Kadkhodayan M., Elastic/Plastic Buckling Analysis of Skew Plates under In-plane Shear Loading with Incremental and Deformation Theories of Plasticity by GDQ Method, Journal of the Brazilian Society of Mechanical Sciences and Engineering, 37, 2, pp. 761-776, (2015)
  • [20] Sun S., Zeng Q., Wu J., Buckling Optimization of Composite Laminates Based on Improved Simulated Annealing, China Mechanical Engineering, 26, 12, pp. 1676-1683, (2015)
123