Experimental Stress Analysis

The course covers the fundamental aspects of experimental stress analysis that includes exhaustive treatment of the most versatile techniques like photoelasticity and strain gauges and a brief introduction to the emerging techniques like digital image correlation. In addition, it also provides the fundamental aspects of six different experimental techniques such as Moiré, Brittle Coatings, Holography, Speckle Methods, Thermoelastic Stress Analysis and Caustics. INTENDED AUDIENCE: Students in Engineering Colleges and working professionals in similar areasPRE-REQUISITES: Basic course on Strength of Materials. Course on Theory of Elasticity desirable INDUSTRY SUPPORT: HAL, GE, GM, NAL, DMRL, DRDO, BEML, Mahindra & Mahindra, Tata Motors, L&T, VSSC, Defence and Atomic energy Laboratories

Week 1 : Overview of Experimental Stress AnalysisWeek 2 : Physical Principle of Experimental Techniques, Introduction to Various experimental TechniquesWeek 3 : Fringe Patterns – Richness of Qualitative Information, Multi Scale AnalysisWeek 4 : Selection of Experimental Techniques, Introduction to Crystal OpticsWeek 5 : Light Ellipse, Retardation Plates and Plane PolariscopeWeek 6 : Jones Calculus, Plane and Circular Polariscope analysisWeek 7 : Compensation Techniques, Calibration of Photo-elastic MaterialsWeek 8 : Fringe ordering and Three-Dimensional Photo-elasticityWeek 9 : Photo-elastic CoatingsWeek10 : Brittle Coatings and Strain Gauges IntroductionWeek11 : Strain Gauge Alloys, Performance of Strain Gauge SystemWeek12 : Correction factor for Special Applications