Study on the ground impact vibration intensity model of high energy warhead explosion

Introduction: In the warhead explosion process, ground impact vibration intensity will directly affect target buildings and instruments safety, it is also of great significance to accurately evaluate ammunition damage power. Methods: this study, finite element numerical simulation method was used analyze shock wave pressure velocity TNT explosive with a mass 100 kg∼1000 kg, transmission medium sandy soil, C35 C140 concrete, propagation distribution law clarified. Based on similarity dimensional analysis method, theoretical calculation model clear physical established by introducing property parameters, taking into account factors affecting velocity. Results: The accuracy verified measured data. verification results show that higher than 91.8%, which improves site Discussion: This research provides more accurate scientific theory data support for power evaluation, reference resistance performance design instruments, equipment buildings. It has strong engineering application value.