缠绕角度对碳/环氧厚壁管件轴压性能影响的有限元分析  

FEA for Effect of Winding Angles on Axially Compressive Properties of Thick-Walled C_f/E Tubes

作　　者：彭超义[1] 鞠苏[1] 杜刚[1] 曾竟成[1] 肖加余[1] 

机构地区：[1]国防科学技术大学航天与材料工程学院,长沙410073

出　　处：《宇航材料工艺》2005年第6期27-30,共4页Aerospace Materials & Technology

基　　金：国家863计划项目资助(2003AA724052)

摘　　要：建立厚壁缠绕管件的轴压有限元模型,分析相同压缩载荷条件下不同缠绕角度对管件轴压模量,径向形变和剪应力的影响,并对厚壁缠绕管件在轴压载荷下的破坏模式和部位进行了预测分析。结果表明:受轴压管件的缠绕角度宜控制在20°以内,对管件端头进行环向缠绕加强可以提高管件的轴压强度和刚度。Finite element analysis （FEA） model of the filament winding tubes is built to analyze the effect of different winding angles on the axially compressive modulus, radial deformation and shearing stresses of the tubes under the same compression loads, and the failure mode and position of the compressed tubes are predicted and analyzed according to the FEA results. The results show that the filament winding angles should be less than 20° for axially compressed tubes and hoop-winding reinforcement can improve the axially compressive strength and stiffness.

关 键 词：缠绕角度 厚壁 碳/环氧 轴压 有限元分析 

分 类 号：TB33[一般工业技术—材料科学与工程]