Research


Granular Mechanics


  • Additive Manufacturing
  • Agricultural Machinery
  • Li-Ion Batteries
  • Solid Oxide Fuel Cells
granular

Stimuli-Responsive Thin Film Systems


  • Light/Heat Responsive Liquid Crystal Polymers
  • Solvent/Vapour Responsive Biopolymers
  • Soft Robotics, Microfluidics
granular

Cellular and Metamaterials


  • Dynamic compression response of honeycomb structures
  • Design of auxetic structures for energy absorption
  • Auxetic structures as soft actuators
granular

Tools/Techniques used in our research


  • Finite Element Method (in-house codes, Abaqus, FEniCS and COMSOL)
  • Discrete Element Method (in-house code: DEM_KIT, LIGGGHTS, EDEM)
  • Experimental Granular Mechanics
  • Fabrication and Characterization of Liquid Crystal Polymer Thin Films

Experimental Facilities in the Lab


  • A 50 kN UTM with tension, compression and 3-point bending fixtures (upto 600 C)
  • Triaxial test-setp for granular materials
  • Direct shear apparatus for granular materials
  • UV-Vis Spectrophotometer (UV1000 from Lab India)
  • Omnicure S2000 UV Power Source (From Excelitas)
  • NIR Laser, LSR808NL-1W
  • SLA 3D Printer, Form3 (From Form Labs)
  • Spin Coater, EZ Spin A1 (From Apex Instruments)
Research is to see what everybody else has seen, and to think what nobody else has thought.

Contact Details


 : Room No.208, Machine Design Section

: Department of Mechanical Engineering

: IIT Madras

: ratna@iitm.ac.in

 : +91-44-2257-4719