Numerical simulation of foreign body penetration process caused by solid motor drop
Energetic materials are prone to ignition and even explosion under stimuli such as impact and friction,while solid rocket motor contains a large amount of propellant charges.In practical scenarios such as missile launch failure,falling during lifting,overturning and collision during production and transportation,there is a risk of safety accidents.At this time,the motor is severely impacted,causing changes in internal pressure of the charge,and even causing combustion and explosion,it will pose a serious threat to the surrounding environment and personnel.This study focuses on the safety issues of solid rocket motor and uses numerical simulation methods to conduct research.In particular,simulation calculations that are closer to actual scenarios such as falling to raised ground and falling accompanied by metal rod penetration were carried out.The pressure,stress,reactivity,and other results of the solid rocket motor charge under different operating conditions were obtained.After safety evaluation,it is believed that all operating conditions calculated in this study will not explode.
solid motordropping safetyfinite element analysispenetrationignition growth model
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