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Summary of Advantages of the Photoelastic
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1RDER 5°C per hour achieved adhesive tape Araldite CT200 Aroclor auxiliary lines axis Bamber Bridge birefringence components compression deformation diameter directions disc elastic engineer epoxy resin ﬁnal ﬁnish ﬁrst freezing Fringe Multiplication fringe order fringe value frozen stress graph Hardener interference patterns isochromatics isoclinic load is removed machining magnitudes Mat1alon milling cutter model material modiﬁed monochromatic normal number of fringes obtained optical oven Perspex photoelastic materials photoelastic model photoelastic pattern photoelastic stress analysis photoelastic technique plane-polarized light plastic Poisson’s ratio polariscope polarized light polarizer and analyser principal stresses produced prototype rays Reﬂective refractive index Residual stresses ROOM TEMP room temperature Royal Aeronautical Society Sandwich Technique set-up Sharples Photomechanics Ltd Shear slope shear stress shown in Fig slices Spring Stereomicroscope stress concentration Stress Separation stress-freezing temperature structures surface Teddington thermal three-dimensional model tion two-dimensional models VIBRATING Welwyn Electric white light source zero