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

M. R. Allazadeh, C. I. Garcia, A. J. DeArdo, M. R. Lovell

Research output: Chapter in Book/Report/Conference proceedingChapter

1 Citation (Scopus)

Abstract

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 Al2O 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 1300°C. 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.

Original languageEnglish
Title of host publicationQuenching and Cooling, Residual Stress and Distortion Control
Subtitle of host publicationSTP 1523
EditorsLauralice de C.F. Canale, Michiharu Narazaki
Place of PublicationWest Conshohocken, Pa
Pages253-268
Number of pages16
DOIs
Publication statusPublished - 31 Jan 2010

Publication series

NameJournal of ASTM International: Selected Technical Papers
VolumeSTP1523

Keywords

  • FEM
  • inclusion rigidity factor
  • nonmetallic inclusion-steel matrix interface
  • stress concentration zone
  • thermally induced strain
  • finite element methods

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