標題: Nonlinear diffusion-induced stresses in a long bar of square cross section
作者: Hwang, CC
Lin, SP
Chu, HS
Lee, WS
機械工程學系
Department of Mechanical Engineering
公開日期: 1-Jan-1999
摘要: This paper is to investigate the nonlinear effect of the self-induced electric field on the diffusion-induced stresses in a long bar. We first approximate the nonlinear concentration-dependent diffusivity asa series of third-degree polynomials by the least-squares curve-fitting techniques, and then calculate the distributions of concentration by the Galerkin method. Afterwards, the diffusion-induced stresses inside the bar are determined analytically by introducing the Goodier displacement potential and Airy stress function. It is found that the nonlinear self-induced electric fields can depress both the concentration gradient and the maximum diffusion-induced stresses apparently, and these effects are more significant at short times than at long times. (C) 1998 Elsevier Science Ltd. All rights reserved.
URI: http://hdl.handle.net/11536/31606
ISSN: 0020-7683
期刊: INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES
Volume: 36
Issue: 2
起始頁: 269
結束頁: 284
Appears in Collections:Articles


Files in This Item:

  1. 000077187600004.pdf