Use of X-rays and Neutrons to Measure (Residual) Stress Elastic Constants

摘要

From this study, one can conclude that, for a sample without a large stress gradient, the diffraction elastic constants should not be dependent upon the radiation source which is used to measure them. Nor are they dependent upon whether uniaxial tension or four-point bending is used. This is, of course, just a beginning; future experiments must address the effects of a large stress gradient in the sample. This is necessary not merely as a logical next step, but because it is also a more realistic representation of typical residual stress samples. Keywords: Residual Stress; Elastic constants; Neutron diffraction.