E3S Web Conf.
Volume 376, 2023International Scientific and Practical Conference “Environmental Risks and Safety in Mechanical Engineering” (ERSME-2023)
|Number of page(s)
|I Environmental Risks and Safety in Mechanical Engineering
|31 March 2023
Finite element modeling of thermal stresses in aerospace structures from polymer composite materials
Bauman Moscow State Technical University 5, 2-ya Baumanskaya str., 105005 Moscow, Russian Federation
* Corresponding author: email@example.com
The conjugate problem of aerodynamics and heat and mass transfer in heat-shielding structures made of ablating polymer composite materials is considered. To determine the heat fluxes in the shock layer, the chemical composition of the atmosphere is taken into account. A mathematical formulation of the joint problem is formulated and an algorithm for numerical solution is proposed. An example of a numerical solution of the problem for the reentry spacecraft Stardust is presented. It is shown that due to the high temperatures of aerodynamic heating of a structure made of a polymer composite material, an intense internal generation of gas appears in the structure of the material, which can lead to the destruction of the material.
Key words: polymer composite material / finite element / aerodynamic heating / mathematical formulation
© The Authors, published by EDP Sciences, 2023
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