Abstract
The outer wall of re-entry vehicles is covered with heat shield materials in order to protect them from severe aerodynamic heating. An ablator is a type of heat shield material effective for re-entry vehicles. In particularly an ablator made of Phenolic carbon fiber-reinforced plastics (CFRP) is known to possess superior resistance against severe aerodynamic heating. Okuyama laboratory has been studying the lightweight ablator series for transfer vehicle systems (LATS). From the past research results, it was confirmed that the heat-resistant performance of this LATS is equivalent to high-density ablator material made of that CFRP. However, we do not confirm those details about the temperature dependency of the mechanical property of this heated LATS. In this research, we compared the elastic modules of the LATS and a conventional heavy density CFRP which were heated. We could identify that the reduction phenomenon of the elastic modulus of the CFRP occurs from approximately 600K, this phenomenon of the LATS happens from after a heating start. Moreover, we were able to find out that we can predict the temperature dependency of the elastic modulus of LATS using the Arrhenius equation.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
