Aluminum, as a critical constituent material for missile casings, undergoes ablation phase transformation under X-ray irradiation, resulting in structural damage to the surface layer of the missile casing.

The aim of this research is to deeply explore the interaction between X rays and aluminum materials, observe the key physical phenomena during the process, and understand the mechanism of the thermal effect of X-ray irradiation on aluminum foil.

Through multi-scale modeling and simulation, while considering the temperature changes of both the electronic system and the lattice system, the TTM-MD model was selected to conduct thermal effect simulation of X-ray interaction with the material. The temperature of the surface electrons of the material was used to characterize the energy of the incident X rays, in order to simulate the rapid temperature rise process of electrons when X-rays act on the surface of aluminum foil. In-depth research was conducted on the energy deposition of X rays on the aluminum foil and the heat conduction process within the material.

By analyzing the specific influence of X-ray energy on the thermal effect of aluminum foil, the evolution laws of physical parameters such as electron and lattice temperatures, and material density over time were obtained. At the same time, the influence laws of X-ray irradiation on the thermal effect of aluminum foil were also explored: During the X-ray irradiation of the aluminum foil, the energy of the X rays is absorbed by the aluminum foil material and converted into thermal energy. This heating effect leads to a decrease in the surface density of the aluminum foil and its gradual deposition towards the deeper layers. At the same time, the temperature increase caused by the irradiation also results in a dynamic response of the internal pressure of the aluminum foil, which first increases sharply and then gradually stabilizes. The changes in these physical parameters are not only closely related to the irradiation conditions but are also influenced by the inherent properties of the aluminum foil material.

Through multi-scale modeling and simulation studies, this paper analyzed the specific influence of X-ray energy on the thermal effects of aluminum foil, and obtained the evolution laws of physical parameters such as electron and lattice temperatures, and material density over time. The multi-scale simulation method successfully captured the characteristics of these changes, providing a perspective for understanding the thermal effects of aluminum foil under X-ray irradiation.