Experimental and numerical investigation of hyper composite plate structure under thermal and mechanical loadings

الملخص EN

In this study eleven models of the rocket fins were made of hyper composite material with different values of volume fraction of components (70%, 60%,50% for polyester, 40%, 30%,25%,20%,10% for fibers and 0%, 5%, 10%, 20%, 30%,40%for powder) to produce an isotropic composite plate structure.

The reinforcement of the matrix is done by mixing of the polyester resin with the carbon fiber and carbon powder.

Mechanical and thermal properties were evaluated by conducting several tests.

A concentrated load was applied on these models the effect of adding the carbon powder on the maximum deflection and the effect of temperature on this deflection were studied and discussed.

The temperature range was suggested according to the matrix ability and applications.

The experimental results were verified numerically using ANSYS finite element program.

The results showed that the addition of carbon powder to the composite material composed of polyester and glass fiber leads to increase the value of Young 's Modulus (maximum value 6.36 GPa) and decrease the amount of maximum deflection.

The maximum deflection was increased with the increasing of temperature.

The lowest value of maximum deflection was occurred in the model composed of (50% polyester,30%glass fiber and 20% powder) which reached to 1.56 mm.

The comparison between experimental and numerical results showed a good agreement between them.