Effect of Ambient Temperature on Solid Motor Grain in Shipboard Multi-launch Container

Abstract

In order to study the effects of shipboard environment on solid motor grain, the ambient temperature in multi-launch containers were monitored. The temperature and stress fields of solid propellant grain under different ambient temperature were obtained using three-dimensional viscoelastic finite element method. It is shown by the results that the changed trend of temperature, stress and strain of motors in multi-container is similar to the environment temperature. The stress and strain were largest at the star tip of grain, and the stress and strain were closer in the upper and bottom layer containers.