Abstract

The methodology for residual stress analysis using X-ray diffraction combined with the penetrating power of neutrons offers the possibility of measurement of elastic stress and stress distributions in the interior of solid materials. The feasibility of this technique is discussed. Analysis of factors such as creation and control of internal probe regions, specimen thickness, alignment and determination of peak positions indicates that the method has potential. Application to a curved beam aluminum alloy sample with a 25.4 mm square cross-section under an applied load has shown that results in reasonable agreement with theory are attainable. Limitations and applications are discussed.

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