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Residual Stress Analysis with Neutrons

Published online by Cambridge University Press:  21 February 2011

Aaron D. Krawitz
Aaron D. Krawitz*
Affiliation:
Dept. of Mechanical and Aerospace Engineering, University of Missouri, Columbia, MO 65211
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Abstract

The use of neutrons for the measurement of stress is complementary to and extends traditional x-ray diffraction methods to new types of problems. This is due to the lower absorption of neutrons compared to x-rays by most engineering materials, which increases the sampling depth from microns to millimeters. It is particularly suitable for triaxial macrostress gradients through the depth of engineering components and volumetric microstresses in composites. In addition, applied stress studies may also be performed. This paper briefly describes the nature of residual stresses, the use of diffraction for stress measurements, experimental aspects of the use of neutrons, and illustrative applications.

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Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 166: Symposium J – Neutron Scattering for Materials Science , 1989, 281
Copyright
Copyright © Materials Research Society 1990

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