Analysis for the residual prestress of composite barrel for railgun with tension winding

作     者：Dong-mei Yin Bao-ming Li Hong-cheng Xiao Dong-mei Yin;Bao-ming Li;Hong-cheng Xiao

作者机构：National Key Laboratory of Transient PhysicsNanjing University of Science&TechnologyNanjing210094China 

出 版 物：《Defence Technology（防务技术）》 (Defence Technology)

年 卷 期：2020年第16卷第4期

页      面：893-899页

核心收录：

学科分类：082601[工学-武器系统与运用工程] 08[工学] 0826[工学-兵器科学与技术] 

主　　题：Railgun Barrel Composite materials Filament winding Winding tension Residual prestress 

摘      要：Based on the elastic theory of cylindrical shells and the theory of composite laminates,a prediction model for the residual prestress of the simplified round composite barrel for railgun is *** the fibre pretension is considered in this model.A three dimensional numerical simulation for the residual prestress in the railgun barrel is carried out,by combining the temperature differential method with the element birth and death *** results obtained by the two methods are *** reveals that the distribution trends of residual prestress are *** the difference for residual prestress in the filament wound composite housing of barrel is relatively *** same finite element method is used to analysis the residual prestress in the non-simplified composite barrels for railgun,which are under different control modes of winding *** results mean that the residual prestress in barrel will increase while the taper coefficient for winding is ***,the sealing performance in bore is improved,but the strength of the filament wound composite housing *** addition,the axial and circumferential residual prestress in the filament wound composite housing with constant torque winding are close to the ones in iso-stress design for barrel.