Design of spherical vessels under steady-state thermal loading using thermo-elasto-plastic concept

被引：20

作者：

Darijani, H. ^{[1
]}

Kargarnovin, M. H. ^{[1
]}

Naghdabadi, R. ^{[1
]}

机构：

[1] Sharif Univ Technol, Dept Mech Engn, Tehran 11365, Iran

来源：

INTERNATIONAL JOURNAL OF PRESSURE VESSELS AND PIPING | 2009年 / 86卷 / 2-3期

关键词：

Optimum wall thickness; Elasto-plastic; Thick-walled vessels; Temperature gradient; AUTOFRETTAGE TUBES; BEHAVIOR; PRESSURE; LIFE;

D O I：

10.1016/j.ijpvp.2008.12.001

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Governing equilibrium equations of thick-walled spherical vessels made of material following linear strain hardening and subjected to a steady-state radial temperature gradient using elasto-plastic analysis are derived. By considering a maximum plastic radius and using the concept of thermal autofrettage for the strengthening mechanism, the optimum wall thickness of the vessel for a given temperature gradient across the wall thickness is obtained. Finally, in the case of thermal loading on a vessel, the effect of convective heat transfer on the optimum thickness is studied and a general formula for the optimum wall thickness and design graphs for several different cases are presented. (C) 2008 Elsevier Ltd. All rights reserved.

引用

页码：143 / 152

页数：10

共 17 条

[1] Analytical approach in autofrettaged spherical pressure vessels considering the Bauschinger effect [J].