
%0 Journal Article
%A Winholtz, RA 
%A Cohen, JB 
%T Generalised Least-squares Determination of Triaxial Stress States by X-ray Diffraction and the Associated Errors
%J Australian Journal of Physics
%D 1988/04/01
%V 41
%N 2
%P 189-200
%K 
%R https://doi.org/10.1071/PH880189
%U https://www.publish.csiro.au/paper/PH880189 
%X The determination of residual stresses via X-ray diffraction is briefly reviewed, with particular emphasis on the triaxial stress state. A new method is proposed for determining the general stress tensor, which considerably reduces the variances of the stresses due to counting statistics and gradients. The procedure involves a generalised least-squares solution of strains measured at various tilts of the X-ray beam to the sample, and a new set of tilts is recommended to minimise these errors. 
