Thermal radiation damage is an important aspect of the comprehensive evaluation of explosives. Continuous enhancement in explosive performance and the development of various new weapons and ammunition have recently raised interest in assessing the thermal radiation damage effects induced by explosive fireballs. The thermal radiation damage threshold is a core parameter that directly influences the assessment of explosive performance and weapon design. However, current calculation methods only lead to single-point thermal radiation damage thresholds at specific distances from a fireball, failing to reflect the spatial distribution characteristics of thermal radiation damage, which constrains the applicability of the thermal radiation damage threshold parameter for the optimization of explosive performance and the development of weapons and ammunition. The paper calculates the spatial thermal radiation damage threshold based on the true temperature field of explosive fireballs, fully accounting for the spatial distribution characteristics of fireballs and the time-dependent nature of spectral emissivity. This research provides a solid theoretical foundation for the comprehensive evaluation of thermal radiation damage effects.

Zhentao Wang, Jingmin Dai. A Method for Calculating Spatial Thermal Radiation Damage Thresholds Based on the True Temperature Fields of Explosive Fireballs. International Journal of Frontiers in Engineering Technology(2025), Vol. 7, Issue 2: 84-95. https://doi.org/10.25236/IJFET.2025.070212.

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