A special investigation to develop a general method for three-dimensional photoelastic stress analysis

M. M. Frocht, R. Guernsey, Jr.
naca-report-1148
1953


The method of strain measurement after annealing is reviewed and found to be satisfactory for the materials available in this country. A new general method is described for the photoelastic determination of the principal stresses at any point of a general body subjected to arbitrary load. The method has been applied to a sphere subjected to diametrical compressive loads. The results show possibilities of high accuracy.

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