Milad Noorabadi - Composite Materials & Technology Center,Malek-Ashtar University of Technology
Rahnama Malihe - Composite Materials & Technology Center,Malek-Ashtar University of Technology
Ghasemi Mohammad Amin - Composite Materials & Technology Center,Malek-Ashtar University of Technology
Jafar Eskandari Jam - Composite Materials & Technology Center,Malek-Ashtar University of Technology

In this paper the energy absorption capacity of stiffened circular composite tube is considered. The governing equations and dynamic equilibrium are first derived and then solved. Additionally, a finite element model of reinforced circular composite tube structure is modeled. At the following, the effects of various parameters such as structural geometry, number of rings and stingers on mechanical behavior of such tubes are considered. The Stiffened cylinder is under axial loading and internal pressure, and boundary conditions for both sides of the cylinder are considered as simple supports. Results show increasing in the amount of energy in the stingers while the number of stingers increases, and decreasing in the amount of total energy while the number of rings and stringers are increase. Total strain energy and the strain energy created in structural elements increase by increasing the ratio of radius to thickness. The analytical solution results are in good compatibility with the results achieved from the finite element method.

Energy, Finite Element, Rings, Stringers, Deflection