Av. Seleznev et al., STRESS GRADIENTS IN 3-DIMENSIONAL PROBLEMS STUDIED BY THE OPTICAL POLARIZATION METHOD, Industrial laboratory, 61(1), 1995, pp. 50-52
The first principal stress gradient has been calculated using experime
ntal data obtained on photoelastic three-dimensional models of standar
d structural elements of power-generating equipment. The results can b
e recommended for use in standard technical specifications.