Studies in Three‐Dimensional Photoelasticity Stress Concentrations in Shafts with Transverse Circular Holes in Tension Relation Between Two‐ and Three‐Dimensional Factors

摘要: Part I. General problems of technique arising in three‐dimensional photoelastic analysis by means the frozen stress pattern method are discussed. These include suggestions for loading, slicing, improvement boundary visibility, a discussion time stresses, and methods determination fringe order value model with static or pattern. A number instructive patterns shown. II. Stress concentration factors shafts ratios r/d equal to 0.0666, 0.323, 0.164 determined, r being radius hole, D diameter shaft, d=D−2r. III. relation is established between two‐ range which does not exceed 0.5, believed cover most practical cases. It shown that somewhat greater than two‐dimensional same ratio r/d.