肩部减薄缺陷三通塑性极限面内弯矩的研究  

Research of In-plane Plastic Limit Moment of Tee with Defect of Thinned Should

作　　者：贾慧灵[1] 王昌[1] 孙亮[2] 杜鹏飞[3] 

机构地区：[1]内蒙古科技大学机械工程学院,包头014032 [2]国家质量监督检验检疫总局特种设备检测研究中心,北京100013 [3]内蒙古包头市交通运输管理处,包头014010

出　　处：《化工设备与管道》2007年第5期47-51,共5页Process Equipment & Piping

基　　金：国家"十五"科技攻关课题2001BA803 B03-05

摘　　要：利用ANSYS有限元分析软件对含肩部减薄缺陷焊制三通进行了弹塑性有限元分析,确定了影响三通塑性极限面内弯矩的主要因素,建立了覆盖常用三通几何尺寸及缺陷尺寸的塑性极限面内弯矩有限元解数据库,并拟合得到形式简单且具有较高精度的塑性极限面内弯矩工程估算式。By using finite element software ANSYS, the elasto-plastic analysis for welded tee with flaws at should was carried out. The main factors to influence the plastic limit of in-plane moment for tee were determined and the database of finite element analysis solution for the plastic limit of in-plane moment for tee with flaws at should was built. Then, the empirical equation with simple form, which covers usual geometry tee sizes and flaw sizes, used to estimate the plastic limit of in-plane moment was obtained.

关 键 词：三通 塑性极限载荷 肩部减薄缺陷 有限元分析 工程估算公式 

分 类 号：TQ055.8[化学工程]