Dr. Ratna Kumar Annabattula

Associate Professor

Office: Room No: 208, Machine Design Section
Tel: (O): +91 44 2257 4719


Dr. Ratna Kumar Annabattula received his PhD from University of Groningen, The Netherlands in 2011. He received his B.E. (Andhra University) and M.E. (Indian Institute of Science) in 2002 and 2004, respectively, both in Mechanical Engineering. He was as a postdoctoral researcher at Karlsruhe Institute of Technology, Germany for about two and half years before joining IIT Madras in December 2012. He was with G.E. India Technology Centre, Bangalore, India for 10 months as a Design Engineer during 2004-2005.

His current research interests include mechanics of stimuli-responsive thin films, mechanics of granular materials for energy applications such as nuclear fusion, lithium-ion batteries and solar thermal energy and multiscale materials modeling.

Awards & Honors

  1. Young Faculty Recognition Award (YFRA) for teaching and research at IIT Madras, 2015
  2. Thomas Young Centre’s Junior Research Fellowship at UCL, London, 2012
  3. DAAD-GO8 visiting fellowship at The University of Sydney, Australia, August 2012
  4. Young Scientist award from MRS to attend World Materials Summit held in Washington D.C, USA, October 2011

Selected Publications

  1. Raghuram Karthik Desu, Akhil Reddy Peeketi and R. K. Annabattula Influence of bed conditions on the effective thermal conductivity of ceramic breeder pebble beds using thermal DEM (TDEM), Fusion Engineering and Design 159, 111767 (2020)
  2. V. Anju, R. Pratoori, D. Gupta, R. Joshi, R. K. Annabattula and P. Ghosh Controlled Shape Morphing of Solvent Free Thermoresponsive Soft Actuators, Soft Matter 16, 4162-4172 (2020)
  3. Kanishk Mehta, Akhil Reddy Peeketi, Jeroen A. H. P. Sol, Michael G. Debije, Patrick R. Onck and Ratna Kumar Annabattula Modeling of surface waves in photo-responsive viscoelastic liquid crystal thin films under a moving light source, Mechanics of Materials 147, 103388 (2020)
  4. Jagannadh Boddapati, Shaswat Mohanty and Ratna Kumar Annabattula An analytical model for shape morphing through combined bending and twisting in piezo composites, Mechanics of Materials 144, 103350 (2020)
  5. Akhil Vijayan, Yixiang Gan and Ratna Kumar Annabattula Evolution of fabric in spherical granular assemblies under the inuence of various loading conditions through DEM, Granular Matter, 22, 34 (2020)
  6. Veral Bhartia, Matthias Kolb, Marigrazia Moscardini, Marc Kamlah and Ratna Kumar AnnabattulaElastic response of individual European advanced ceramic breeder pebbles during uniaxial compression, Fusion Engineering and Design 153, 111502 (2020)
  7. Shaswat Mohanty, Pramod Kumbhar, Narasimhan Swaminathan and Ratna Kumar AnnabattulaA phase-field model for crack growth in electro-mechanically coupled functionally graded piezo ceramics, Smart Materials and Structures, 29, 045005 (2020)
  8. Sri Datta Rapaka, Manoj Pandey and Ratna Kumar Annabattula, Effect of defects on the dynamic compressive behaviour of cellular solids, International Journal of Mechanical Sciences, 170, 105365 (2020)