From Lambda Technologies
As a tensor property, the macroscopic residual stress will generally vary with direction at any point on a body. In most residual stress investigations, the direction of interest is indicated by the stresses applied in service, or by the orientation of fatigue cracks. The residual stress distributions produced by some processes such as shot peening, induction hardening or carburizing may be quite uniform, so that the magnitude of the residual stresses produced is nearly independent of the direction of measurement.
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Two rectangular samples of ASTM SA 508 Class 2 steel, stress relieved and shot peened to 14-16A intensity, were examined in detail to determine the principal macroscopic residual stress distribution.
A brief overview of the theory and practice of x-ray diffraction residual stress measurement as applied to shot peened materials is presented. The unique ability of x-ray diffraction methods to...
The measurement of residual stress distributions with depth is critical to understanding the impact of machining, shot peening, induction hardening, and similar processes on fatigue performance. The...
Shot peening is commonly used to produce a layer of compressive residual stress at the surface of components subject to fatigue or stress corrosion failure. Monitoring the Almen intensity controls the...
The magnitude and depth of the layer of compressive residual stress produced by shot peening is critical to achieving increased component fatigue strength. Although the Almen strip provides a...
