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A Practical ϕ-Method for the Evaluation of Stress on Materials with Stress Gradient by X-rays

Published online by Cambridge University Press:  06 March 2019

Toshihiko Sasaki ,
Makoto Kuramoto  and
Yasuo Yoshioka
Toshihiko Sasaki
Affiliation:
The Institute of Vocational Training 1960 Aihara, SagamiharaKanagawa 229, Japan
Makoto Kuramoto
Affiliation:
The Institute of Vocational Training 1960 Aihara, SagamiharaKanagawa 229, Japan
Yasuo Yoshioka
Affiliation:
Musashi Institute of Technology 1 Tamazutsumi, SetagayaTokyo 158, Japan
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Extract

Nonlinear sin2ψ curves are often obtained in X-ray stress measurement. One of the reasons, for non-textured materials, is a steep stress gradient snowing in a surface layer of a sample. Regarding such experimental results, several new principles have been developed for X-ray stress analysis. At the present stage, we can evaluate the stress gradient in a triaxial stress state. As the next stage of the investigation, it is necessary to consider the validity of the assumptions taken in the principle, especially, the assumption about linear distribution of stress along the depth direction.

Type
VIII. X-Ray Strain and Stress Determination
Information
Advances in X-Ray Analysis , Volume 28: Thirty-Third Annual Conference on Applications of X-ray Analysis, July 30 - August 3, 1984 , 1984 , pp. 265 - 274
Copyright
Copyright © International Centre for Diffraction Data 1984

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References

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