Photoelastic demonstration Representation of distribution of stress and stress concentrations in component models. Can be used in conjunction with an overhead projector. Features - demonstration unit as an attachment for an overhead projector - generate stress patterns with linear or circular polarised light in typical polycarbonate components - detect stress concentrations Learning objectives/experiments - generate plane stress states in various models under load -- compressive load -- tensile load - investigate stress distributions with linear and circular polarised light - interpret photoelastic fringe patterns -- stress distribution -- stress concentration Specification [1] photoelastic experiments with an overhead polariscope [2] polariser and analyser each comprise a polarising filter and a quarter-wave filter [3] filter enclosed, with stress-free glazing [4] all filters arbitrarily rotatable in the horizontal plane [5] linear or circular polarised light possible [6] green filter for monochromatic light [7] load application device with force gauge for pressure and tensile load [8] eight different polycarbonate models are delivered [9] storage system for parts Technical data Filter bracket with polariser and analyser - diameter of filters: Ø 165mm 1 green filter, diameter: Ø 150mm Load application device with force gauge - load force: 0...250N 8 models, PC - unnotched bar - bar with hole - bar notched on one side - bar notched on both sides - rectangle without recesses - rectangle with recesses - fork - crane hook LxWxH: 500x190x30mm (frame) LxWxH: 280x280x90mm (filter bracket) Weight: approx. 8kg LxWxH: 1170x480x178mm (storage system)