This study establishes an energy conduction model of glass and concrete mediums under explosion thermal radiation, investigates the temperature response and damage state of glass and concrete materials under transient thermal radiation, and numerically simulates the material damage threshold using the finite element analysis method.
Based on the MATLAB App Designer tool, the study develops a rapid assessment system for the temperature response and damage state of glass and concrete materials under transient thermal radiation using the bilinear interpolation method and the neural network method, which lays the foundation for the subsequent study of the thermal radiation damage effects. Neural networks are used as the core algorithm for the prediction function, enabling rapid prediction of glass and concrete material destruction under transient thermal radiation with an error of less than 15%.
Numerical simulation software for thermal radiation damage results is designed based on the thermal radiation model to obtain the temperature distribution and temperature change curve within the material when the glass and concrete materials are affected by thermal radiation, and to obtain the thermal impulse and softening thickness of 10 mm glass when the heat source temperature is 3000 K–7000 K and the duration is 1∼9s, and the thickness of the damage layer of 10 mm concrete when it is 1000 K–3000 K.
Transient thermal radiation is generated by strong explosions, such as nuclear power leaks. The damaging effects of thermal radiation on building structures are a major field of study, with glass and concrete serving as the main building materials used in modern building facades. Both the intensity and duration of the radiation determine the explosion’s strong radiation effect. The radiation travels fast and the energy decays slowly, and a high temperature is formed on the medium’s surface by radiation, which is then propagated by the radiation medium, resulting in secondary accidents. In terms of engineering applications, the software in this study realizes the engineering needs for the safety assessment of the thermal radiation. Specifically, using this software, the degree of thermal radiation hazard to a target (such as the explosion time of energetic materials) can be predicted once the radius, temperature and duration of the radiant source are known.
We develop a rapid assessment software for transient thermal radiation damage effects.
