Analysis of stress concentration around inclusions due to thermally induced strain to the steel matrix

被引：2
作者：
Allazadeh, M.R. [1 ]
Garcia, C.I. [1 ]
Deardo, A.J. [1 ]
Lovel, M.R. [2 ]
机构：
[1] Materials Science and Engineering Department, University of Pittsburgh, 848 Benedum Hall, Pittsburgh
[2] Swanson School of Engineering, University of Pittsburgh, 323 Benedum Hall, Pittsburgh
来源：
Journal of ASTM International | 2009年 / 6卷 / 05期
关键词：
FEM; Inclusion rigidity factor; Nonmetalllic inclusion-steel matrix interface; Stress concentration zone; Thermally induced strain;
D O I：
10.1520/JAI102041
中图分类号：
学科分类号：
摘要：
A finite element method (FEM) was employed to aid in the thermodynamic analysis of the cooling process of steel containing nonmetallic Inclusions In a homogenous, isotropic, single-phase steel matrix. Three different contact techniques available In ANSYS were used in a 2-D model of AI2O 3 Inclusions In a 1010 steel grade to define different types of Inclusion-steel interfaces, Comparisons of these numerical techniques examine the effect of the characteristic of the interface on the residual stress concentration zone around inclusions embedded In a steel matrix with an initially free stress state and their thermal Interaction during the cooling process from 1300̈C. Results are presented to discuss the significance of the inclusion surface and boundary conditions (axisymmetric and fully constrained) on the stress distribution within the stress concentration zone in the vicinity of the interface. Copyright © 2009 by ASTM International,.
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