• Ahana Arshad S
• Dinu Vijay
• Sajith R
• Jincy J C

The surface heating of re-entry vehicle is due to convection. Laminar boundary layer over the body is required. Turbulent layer increase overall heating. So the material surface should not contain any gap or discontinuities. The surface should have high emissivity, high thermal resistance. The very high temperature in front of the vehicle is reduced by the presence of bow shock wave. The region between the body and shock layer undergo endothermic reaction and a result temperature is utilized to do the chemical reaction. The material should have high thermal insulation property-tiles, reinforced carbon-carbon etc. A low density material may lack tensile strength to resist spallation if dynamic pressure is too high. A layer of fluid is allowed to circulate over the body of the vehicle which acts as a coolant. Aerodynamic heating is the major problem faced during atmospheric re-entry. In order to overcome the aerodynamic heating problem we use thermal protection system. Thermal protection system has high strength, low density, high thermal resistance. So after the analysis we found that super alloys and Nano materials are best for re-entry vehicle.

convection, emissivity, thermal resistance, aerodynamic heating, thermal protection system

"Analysis of materials used for re-entry vehicle", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 4, page no.143-147, April-2019, Available :http://www.jetir.org/papers/JETIRBF06029.pdf

"Analysis of materials used for re-entry vehicle", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 4, page no. pp143-147, April-2019, Available at : http://www.jetir.org/papers/JETIRBF06029.pdf