压力容器圆筒大开孔应力分析设计中的弯曲应力  

BENDING STRESS IN DESIGN BY ANALYSIS FOR LARGE OPENING IN CYLINDER OF PRESSURE VESSELS

作　　者：桑如苞[1] 元少昀[1] 王小敏[1] 

机构地区：[1]中国石化工程建设公司,北京100101

出　　处：《石油化工设备技术》2009年第5期16-19,共4页Petrochemical Equipment Technology

摘　　要：回顾了长时期以来人们对"大开孔"边缘弯曲应力的认识过程,引出其应力的属性问题。文章对此属性进行了考证,论证指出各压力容器标准将此应力视为二次应力的观点是失误的。The cognition process for local bending stress in large opening during a long time in the past is reviewed,and the issue of bending stress classification is put forward.This paper researches the property of the stress,and demonstrates that it is not correct to regard the bending stress as secondary stress in relevant standards of pressure vessels.

关 键 词：压力容器 大开孔 补强设计 弯曲应力 

分 类 号：TH49[机械工程—机械制造及自动化]