scholarly journals An analytical approach for global buckling of composite sandwich cylindrical shells with lattice cores

2018 ◽  
Vol 146 ◽  
pp. 69-79 ◽  
Author(s):  
Davoud Shahgholian Ghahfarokhi ◽  
Gholamhossein Rahimi
2020 ◽  
Vol 10 (7) ◽  
pp. 2600
Author(s):  
Tho Hung Vu ◽  
Hoai Nam Vu ◽  
Thuy Dong Dang ◽  
Ngoc Ly Le ◽  
Thi Thanh Xuan Nguyen ◽  
...  

The present paper deals with a new analytical approach of nonlinear global buckling of spiral corrugated functionally graded carbon nanotube reinforced composite (FG-CNTRC) cylindrical shells subjected to radial loads. The equilibrium equation system is formulated by using the Donnell shell theory with the von Karman’s nonlinearity and an improved homogenization model for spiral corrugated structure. The obtained governing equations can be used to research the nonlinear postbuckling of mentioned above structures. By using the Galerkin method and a three term solution of deflection, an approximated analytical solution for the nonlinear stability problem of cylindrical shells is performed. The linear critical buckling loads and postbuckling strength of shells under radial loads are numerically investigated. Effectiveness of spiral corrugation in enhancing the global stability of spiral corrugated FG-CNTRC cylindrical shells is investigated.


2014 ◽  
Vol 36 (3) ◽  
pp. 201-214
Author(s):  
Dao Van Dung ◽  
Vu Hoai Nam

Based on the classical thin shell theory with the geometrical nonlinearity in von Karman-Donnell sense, the smeared stiffener technique and Galerkin method, this paper deals with the nonlinear dynamic problem of eccentrically stiffened functionally graded circular cylindrical shells subjected to time dependent axial compression and external pressure by analytical approach. The present novelty is that an approximate three-term solution of deflection taking into account the nonlinear buckling shape is chosen, the nonlinear dynamic second-order differential three equations system is established and the frequency-amplitude relation of nonlinear vibration is obtained in explicit form.


2009 ◽  
Vol 31 (5) ◽  
pp. 1132-1140 ◽  
Author(s):  
Xinsheng Xu ◽  
Jianqing Ma ◽  
C.W. Lim ◽  
Hongjie Chu

2016 ◽  
Vol 156 ◽  
pp. 307-319 ◽  
Author(s):  
Jian Xiong ◽  
Lina Feng ◽  
Ranajay Ghosh ◽  
Huaping Wu ◽  
Linzhi Wu ◽  
...  

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