Elastic analysis of rotating functionally graded polar orthotropic disks

被引：51
|
作者：
Peng, X. -L. [2 ]
Li, X. -F. [1 ,3 ]
机构：
[1] Cent S Univ, Sch Civil Engn, Changsha 410075, Hunan, Peoples R China
[2] Changsha Univ Sci & Technol, Sch Civil Engn & Architecture, Changsha 410114, Hunan, Peoples R China
[3] Cent S Univ, State Key Lab Powder Met, Changsha 410083, Hunan, Peoples R China
来源：
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES | 2012年 / 60卷 / 01期
基金：
中国国家自然科学基金;
关键词：
Orthotropic disk; Functionally graded materials; Radial inhomogeneity; Rotating disk; STRESS-ANALYSIS; VARIABLE-THICKNESS; ANNULAR DISKS; VIBRATION;
D O I：
10.1016/j.ijmecsci.2012.04.014
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
This paper investigates an elastic problem of rotating functionally graded hollow polar orthotropic circular disks. Emphasis is placed on the influence of orthotropy and gradient on the elastic field in particular the hoop stress distribution in hollow annular plates rotating at constant angular speed about its axis. For the gradient of power-law profile, we obtain explicit expressions for the elastic field. For arbitrarily variable gradient, we present a method for transforming the problem into solving a Fredholm integral equation. Numerical results are presented for two particular cases: free boundaries and clamped-free boundaries. A comparison of numerical results with exact ones for power-law material properties is made, indicating the effectiveness of our proposed method. For material properties varying in any way according to the Voigt rule, numerical results are presented to show the effects of gradient parameter and allotropy degree on the distribution of elastic field. (C) 2012 Elsevier Ltd. All rights reserved.
引用
收藏
页码：84 / 91
页数：8
相关论文
共 50 条
12345