STATIC SEISMIC LOAD MODELING USING THE CONTINUUM SHELL ANALOGY FOR LATTICED CYLINDRICAL SHELL STRUCTURES

Buckling Analysis of Cylindrical Grooved Shell under Axial Load Discs

In this paper, buckling of cylindrical grooved shells under axial load has been examined by theoretical and experimental methods. The shell is made of USA/API – X42 5L steel standards. This material is one of the most common materials used in gas, oil and petrochemical industries. The effect of spiral grooves on cylindrical shell was analyzed, and the results obtained from the Abaqus software w...

Optimal Seismic Design of Shell Structures using Genetic Algorithm

I, Chie Matsuo, ensure that this master thesis is independently written and no other sources have been used than the stated references. Preface In spite of recent development in earthquake resistant engineering, earthquake still inflict widespread damage at various parts of the world. The importance of space structures to survive severe earthquake have been noticed again from the experience of ...

Modeling of Vibration of a Fluidized Bed Cylindrical Shell

On the Free Vibration Behavior of Cylindrical Shell Structures

Shell structures, especially cylindrical shells, are widely used in aerospace and naval architectural industries. Submarine hulls and aircraft bodies can be idealized as cylindrical shell structures. The study of vibrations of cylindrical shells is an important aspect in the successful applications of the cylindrical shells. The free vibration characteristics of a submarine hull have an importa...

Optimization of Composite Stiffened Cylindrical Shell using PSO Algorithm

Composite stiffened cylindrical shells are widely used as primary elements in aerospace structures. In the recent years, there has been a growing research interest in optimum design of composite stiffened cylindrical shell structures for stability under buckling load.  This paper focuses upon the development of an efficient optimization of ring-stringer stiffened cylindrical shell. The opti...