循环内压下球形封头开孔接管的安定评估方法  

Shakedown Estimation Methods for Perforated Spherical Cover under Cyclic Internal Pressure

作　　者：郑小涛[1] 陈瑶[1] 喻九阳[1] 徐建民[1] 王成刚[1] 林纬[1] 

机构地区：[1]武汉工程大学化工装备强化与本质安全湖北省重点实验室,湖北武汉430205

出　　处：《压力容器》2014年第12期18-22,共5页Pressure Vessel Technology

基　　金：国家自然科学基金资助项目(51305310);湖北省教育厅科学研究计划项目(Q20131506)

摘　　要：基于有限元软件Abaqus系统,研究了开孔半径和开孔位置因素对球形封头在循环内压下弹性安定极限载荷的影响,提出了相应的经验评估方法。验证结果表明,安定评估方法可较好地评定循环内压下开孔球形封头的安定性。Based on the finite element program Abaqus,the elastic shakedown limit of perforated spherical cover considering the main effect factors,such as opening radius and opening position,was investigated system atically according to the simplified shakedown limit algorithm under cyclic internal pressure,and the corresponding shakedown evaluation method was further proposed.Results presented that the proposed shakedown estimation method shows good reliability for shakedown evaluation of perforated spherical cover under cyclic internal pressure.

关 键 词：球形封头 安定性 极限载荷 开孔 

分 类 号：TH49[机械工程—机械制造及自动化] TQ055.8[化学工程]