Nozzles on spheres with outward weld area under internal pressure analysed by FEM and thin shell theory

被引：13

作者：

Dekker, CJ ^{[1
]}

Brink, HJ ^{[1
]}

机构：

[1] Continental Engn BV, NL-1096 CJ Amsterdam, Netherlands

来源：

INTERNATIONAL JOURNAL OF PRESSURE VESSELS AND PIPING | 2000年 / 77卷 / 07期

关键词：

nozzles on spheres; internal pressure; thin shell theory;

D O I：

10.1016/S0308-0161(00)00043-0

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Internal pressure stresses at nozzle/vessel (spherical) junctions, obtained by various analysis methods based on thin shell theory, will be compared in this study. To evaluate an improved shell-based analysis method capable of accounting for the effect of the additional material in the weld, an axi-symmetric 3D finite element analysis is also included. For information purposes, two methods from recognized vessel codes have been added. The main conclusions are that any outward weld area offers little reinforcement and that stress analyses based upon thin shell theory are quite acceptable. (C) 2000 Elsevier Science Ltd. All rights reserved.

引用

页码：399 / 415

页数：17