Study the stability of composite laminated thin cylindrical shell with stiffeners

Abstract EN

The determination of critical buckling load of stiffened composite cylinder is an important factor in determining the structural stability, which was done by ANSYS program and experimental investigation.

Buckling of a stiffened composite cylinder is a very complex phenomenon that involves complex interactions between the skin and the stiffeners.

Depending on different configurations of the skin and stiffener, different buckling failure modes and failure loads are observed in stiffened cylinders.

In this work failure modes and buckling loads of stiffened composite cylinders under uniaxial loading condition is investigated by using analytical and experimental approaches.

A three dimension finite elements models was built which takes into consideration the exact geometric configuration and the orthotropic properties of the stiffeners and the shell.

Based on the finite element model the different buckling failure modes are observed.

An experimental analysis was also performed to compliment the analytical method used to determine the buckling load of the stiffened cylinder.

Good agreement in the results are presented.