Mapping function model representing the relationship between explosion shock wave pressure and wavefront temperature

The evaluation of ammunition damage power and guidance for design heavily relies on the shock wave pressure wavefront temperature produced by an explosion. However, test results are often inaccurate unreliable. Therefore, this study utilized Autodyn explicit dynamics simulation software to conduct finite element numerical simulations explosion pressure, propagation, distribution trinitrotoluene explosives weighing 10, 20, 50, 100 kg. were measured at different measuring points. cloud maps propagation evolution obtained times analyzed determine attenuation laws in near field far field. Based similarity law explosions dimensional analysis method, a mapping function model was established represent relationship between wave’s peak temperature. parameters include explosive mass (w), point radius (r), specific heat capacity air (c), (p). model’s accuracy calculating exceeds 89.75%, effectively resolving issue low tests calculations. provides data theoretical support testing evaluating explosives, proposed has high applicability engineering