Materials Research Express, Journal Year: 2024, Volume and Issue: 11(8), P. 085604 - 085604
Published: Aug. 1, 2024
Abstract The use of carbon fiber-reinforced resin matrix composites instead metals to manufacture cryogenic propellant tanks for spacecrafts is a development trend in the world aerospace industry. Cryogenic mechanical properties should be investigated detail due that ultra-low temperature environment may cause micro cracks composites, leading leakage. In present study, tensile fiber reinforced silicon-containing epoxy aomposite are using experimental and numerical simulation methods. A with excellent developed by introducing synthesized organic silicon polymer epoxidized polysiloxane Nano-SiO 2 into bisphenol F type resin. strength modulus at −180 °C 202.63 MPa 7.81 GPa, which 16.71% 3.03% higher than those increased 107.7% compared room temperature, nearly twice temperature. composite prepared vacuum injection molding. finite element model representative volume unidirectional plate established. random sequence expansion method used randomly distribute fibers simulate thermal residual stress, elastic performance, damage environments. Through comparison, it found results good agreement results. reliability verified. It expected provide reference analysis evaluation tanks.
Language: Английский