Three-dimensional Stress Analysis for Solid Propellant Engine Chamber

摘要：

In the paper, the stress fields of the solid propellant engine are analyzed using three dimensional linear viscoelasticity finite element model. There are three important engine parts, propellant grain, heat insulation layer and case, in the calculating model. The stresses of the solid propellant engine are calculated under axial overload and transverse overload. The viscoelasticity capability of heat insulation layer and case is considered in the analysis. The critical parts of cracks or unbonded joints were indicated in front- end, back-end, slots of propellant grain and case- insulation interfaces. It supplies a scientific basis for the structural integrity and design of solid propellant engine.

关键词： propellant grain solid propellant engine viscoelasticity overload crack unbonded joint combustion chamber

作者: ZHI Youhai WEI Feng GOU Wenxuan

作者单位: School of Mechanics, Civil Engineering and Architecture, Northwestern Polytechnical University, Xian 710072, Shaanxi, China

会议类型: 国际会议

会议名称: 2007国际推进剂、炸药、烟火技术秋季研讨会(The 2007 International Autumn Seminar on Propellants,Explosives and Pyrotechnics)

会议地点: 西安

会议语种:英文

页码: 756-760

在线出版日期: 2007-10-23（万方平台首次上网日期，不代表论文的发表时间）