Many carbon fiber-reinforced composite materials offer a combination of higher strength and high modulus that are either comparable to or better than many traditional metallic materials which are using now days. Significant developments of these composites have occurred in the last few years. The physical understanding and numerical simulation of the buckling of laminated anisotropic beams have been the focus of intense efforts because of the extended use of fibrous composites in aerospace, automotive shipbuilding and other industries. Ansys is used as the tool for modeling and analysis of the composites .Experiments will be conducted for validating the analytical results. The beams were stiffened to prevent crippling and warping at the supports, and local tensile failure at the load points. This model will reveal many details and properties of carbon fiber reinforced composite materials.

This paper describes mathematical modeling and analysis of the opening of pilot operated solenoid valve. A series of cold gas thrusters for propellant settling and orientation control of stage before and after the main engine operation. The equations are derived and solved numerically. The mathematical model for electromagnetic and mechanical dynamics is derived by making some simplifying assumptions. It is shown that the behavior of valve in the opening processes. This makes the design complicate and prediction of valve response difficult in traditional methods. It is carrying out a mathematical model to predict the performance of the valve using MATLAB software.A discussion is presented with an explanation of the results and a Comparison of the analysis results with test results of the hardware developed.