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Estimation of Ahisotropy of X-Ray Elastic Modulus in Steel Sheets

Published online by Cambridge University Press:  06 March 2019

Shin-ichi Nagashima
Affiliation:
Yokohama National University Department of Engineering 156 Tokiwadai, Hodogaya-ku Yokohama, 240 Japan
Masaki Shiratori
Affiliation:
Yokohama National University Department of Engineering 156 Tokiwadai, Hodogaya-ku Yokohama, 240 Japan
Ryuichi Nakagawa
Affiliation:
Yokohama National University Department of Engineering 156 Tokiwadai, Hodogaya-ku Yokohama, 240 Japan
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The oscillation from a linear relation in the 20 vs. sin2ψ diagram has been a most important problem in X-ray stress measurement. There are, therefore, a number of papers concerned with the X-ray elastic constant, lattice strains under stresses and evaluation of stresses of textured materials.

The purpose of the present study is to analyze the three-dimensional orientation distribution of steel sheets by means of the Vector method proposed by Ruer and Baro, and to calculate the elastic modulus of textured sheets by means of a finite element method (FEM) using the three-dimensional orientation distribution, and then to calculate the strain/stress ratios vs. the directions defined by the angles between the specimen normal and the normal to the diffracting planes.

Type
Research Article
Copyright
Copyright © International Centre for Diffraction Data 1985

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References

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Estimation of Ahisotropy of X-Ray Elastic Modulus in Steel Sheets
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