自增强厚壁圆筒双线性理论模型及试验研究  

The Theory of Autofrettaged in Thick-walled and it′s Experiments Study

作　　者：薛青利[1] 

机构地区：[1]福建炼油化工有限公司聚丙烯厂

出　　处：《压力容器》2001年第3期1-6,57,共7页Pressure Vessel Technology

摘　　要：本文根据自增强圆筒材料的实际特点 ,建立了自增强筒体加载 ,卸载都为线性应变强化的双线性理论模型 ;推导出了自增强厚壁圆筒塑性区应力应变的本构关系式 ;建立了计算BEF的简化模型 ;推导出了自增强筒体应力、应变及BEF影响的计算公式。通过实验 。According to the specific characteristics of the material of autofrettaged tube;this paper established the bilinear harden model both for loading and unloading;The common significance relationship of plastic-elastic has been deduced,The simple model of calculating BEF has also been established.The formulate of stress、strain and BEF have been deduced and all these have been testified by experiment.

关 键 词：自增强 应变强化 包辛格效应 厚壁圆筒 双线性理论模型 超高压技术 

分 类 号：TH49[机械工程—机械制造及自动化]