Optical Methods for Solid and Fluid Mechanics

ABOUT THE COURSE: Course dealing with use of optical methods for quantification of fluid and solid mechanics phenomena. On the fluid mechanics front, the course will focus primarily on fluid flow visualization and quantification. Techniques discussed will include shadowgraphy, particle tracking velocimetry (PTV) and particle imaging velocimetry (PIV). The section on solid mechanics will cover a range of methods, including strain field visualization using Digital Image Correlation (DIC), stress measurements using photoelasticity and volumetric imaging using tomography.INTENDED AUDIENCE: Final year undergraduate students in engineering; PG & PHD students wanting to specialize in experimental methods in fluid and solid mechanicsPREREQUISITES: Not required, but background in fluid and solid mechanics and optics can be helpful.INDUSTRY SUPPORT: Industries requiring experimental work specially those involved in aviation.

Week 1: Introduction and Historical Context.Week 2:Vector and Tensor fields in Mechanics.Week 3:Imaging and Optics.Week 4:Fluid Flow Visualization (Basics, Shadowgraphy, PIV/PTV).Week 5:Solid deformation visualization (comparison with fluids, DIC methods).Week 6:Stress-optic law and photoelasticity for plane stress problems.Week 7:Tomography methods for volumetric imaging (optical, X-ray).Week 8:Lab demo and discussion.