Residual stresses in autofrettaged vessel made of functionally graded material

被引：28

作者：

Jahromi, B. Haghpanah ^{[1
]}

Farrahi, G. H. ^{[2
]}

Maleki, M. ^{[2
]}

Nayeb-Hashemi, H. ^{[1
]}

Vaziri, A. ^{[1
]}

机构：

[1] Northeastern Univ, Dept Mech & Ind Engn, Boston, MA 02115 USA

[2] Sharif Univ Technol, Dept Mech Engn, Tehran, Iran

来源：

ENGINEERING STRUCTURES | 2009年 / 31卷 / 12期

关键词：

Functionally graded material; Thick vessel; Autofrettage; Pressure vessels; Variable material property method; FATIGUE LIFE; CYLINDERS;

D O I：

10.1016/j.engstruct.2009.07.019

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

We used an extension of the Variable Material Property method for materials with varying elastic and plastic properties to evaluate the residual stresses in an autofrettaged thick vessel made of functionally graded metal-ceramic composite. It is shown that the reinforcement of the metal vessel by ceramic particles, with an increasing ceramic Volume fraction from inner to outer radius, increases the magnitude of compressive residual stresses at the inner section of an autofrettaged vessel and thus, could lead to better fatigue life and load-carrying capacity of the vessel. A parametric Study is carried out to highlight the role of ceramic particle strength and spatial distribution, as well as the autofrettage pressure on the induced residual stresses in a thick vessel. (C) 2009 Elsevier Ltd. All rights reserved.

引用

页码：2930 / 2935

页数：6

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