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X-ray Multiaxial Stress Analysis on Materials with Stress Gradient by Use of Cos Ψ Function

Published online by Cambridge University Press:  06 March 2019

Yasuo Yoshioka ,
Toshihiko Sasaki  and
Makoto Kuramoto
Yasuo Yoshioka
Affiliation:
Musashi Institute of Technology 1 Tamazutsumi, SetagayaTokyo 158Japan
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
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Abstract

When X-ray residual stresses are determined taking into account the stress gradients within the penetration depth of X-rays, three assumptions have usually been made; 1) the stress gradient is linear in respect to the depth from the specimen surface, 2) the penetration depth of X-rays is a function of Sin2ψ and 3) the strain measured by X-rays corresponds to the average strain weighted on the intensity of the diffracted X-rays. However, the assumption of the penetration depth of X-rays is the reason we sometimes observed noticeable errors which depend on the combination of stress components in the stress tensor.

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. 255 - 264
Copyright
Copyright © International Centre for Diffraction Data 1984

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References

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