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

被引：19
|
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
收藏
页码：143 / 152
页数：10
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