Buckling analysis of a ring stiffened hybrid composite cylinder

International Conference on Advances in Materials and Manufacturing Applications 2016

Potluri, Rakesh^1 ; Eswara Kumar, A.^2 ; Navuri, Karteek^3 ; Nagaraju, M.^3 ; Rao, Duduku Mojeswara^2

Department OfMechanical Engineering, PVPSIT, Vijayawada, India^1

Department OfMechanical Engineering, K L University, Vaddeswaram, A.P, Guntur, India^2

Department of Mechanical Engineering, Dhanekula Institute of Engineering and Technology, Ganguru, Vijayawada

A.P, India^3

关键词: Ansys;    Central composite designs;    Composite shell;    Finite element method simulation;    Laminate optimization;    Multi-objective genetic algorithm;    Response surface optimization;    Ring-stiffened cylinder;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/149/1/012148/pdf
DOI  :  10.1088/1757-899X/149/1/012148

来源: IOP

【 摘 要 】

This study aims to understand the response of the ring stiffened cylinders made up of hybrid composites subjected to buckling loads by using the concepts of Design of Experiments (DOE) and optimization by using Finite Element Method (FEM) simulation software Ansys workbench V15. Carbon epoxy and E-glass epoxy composites were used in the hybrid composite. This hybrid composite was analyzed by using different layup angles. Central composite design (CCD) was used to perform design of experiments (D.O.E) and kriging method was used to generate a response surface. The response surface optimization (RSO) was performed by using the method of the multi-objective genetic algorithm (MOGA). After optimization, the best candidate was chosen and applied to the ring stiffened cylinder and eigenvalue buckling analysis was performed to understand the buckling behavior. Best laminate candidates with high buckling strength have been identified. A generalized procedure of the laminate optimization and analysis have been shown.