Implications of equilibrium on principal macrostresses measured by neutron diffraction

The application of the elastic equilibrium condition σ ij,j =0 to stress measurements by neutron diffraction is discussed. In particular, implications of the variation of σ ii with x i are considered. This has relevance to evaluation of sub-surface triaxial stress measurements, especially assumption...

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Bibliographic Details
Published in:Materials science & engineering. A, Structural materials : properties, microstructure and processing Structural materials : properties, microstructure and processing, 1996-12, Vol.221 (1), p.33-37
Main Authors: Winholtz, R.A., Krawitz, A.D.
Format: Article
Language:English
Subjects:
Analysing. Testing. Standards
Applied sciences
Coordinate systems
Elastic equilibrium
Exact sciences and technology
Metals. Metallurgy
Neutron diffraction
Stress analysis
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Summary:The application of the elastic equilibrium condition σ ij,j =0 to stress measurements by neutron diffraction is discussed. In particular, implications of the variation of σ ii with x i are considered. This has relevance to evaluation of sub-surface triaxial stress measurements, especially assumptions about principal stress directions. The relations are also given for cylindrical and spherical coordinate systems. Examples of the use of the condition are presented in the context of neutron stress measurements.
ISSN:0921-5093
1873-4936
DOI:10.1016/S0921-5093(96)10481-0