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, Paritosh Chaudhuri and Ratna Kumar Annabattula, High temperature oedometric compression of Li2TiO3 pebble beds for Indian TBM, Fusion Engineering and Design, in press (2018)
  2. Akhil Reddy Peeketi, Marigrazia Moscardini, Akhil Vijayan, Yixiang Gan, Marc Kamlah and Ratna Kumar Annabattula, Effective thermal conductivity of a compacted pebble bed in a stagnant gaseous environment: An analytical approach together with DEM, Fusion Engineering and Design, 130, 80-88 (2018)
  3. Mohammed Suhail, Baldev Puliyeri, Paritosh Chaudhuri, Ratna Kumar Annabattula and Narasimhan Swaminathan, Molecular dynamics simulation of primary damage in β-Li2TiO3, Fusion Engineering and Design, in press (2018)
  4. Raghuram Karthik Desu, Anand Moorthy and Ratna Kumar Annabattula, DEM simulation of packing mono-sized pebbles into prismatic containers through different filling strategies, Fusion Engineering and Design 127, 259-266 (2018)
  5. Hirshikesh, Sundararjan Natarajan and Ratna Kumar Annabattula, A FEniCS implementation of the phase field method for quasi-static brittle fracture, Frontiers of Structural and Civil Engineering (2018, in press)
  6. Joel Martis and Ratna Kumar Annabattula, A semi-analytical model for the effective thermal conductivity of a multi-component polydisperse granular bed, Granular Matter, 19:84 (2017)
  7. M. Moscardini, Y. Gan, R. K. Annabattula and M. Kamlah, A Discrete Element Method to simulate the mechanical behavior of ellipsoidal particles for fusion breeder blanket, Fusion Engineering and Design, 121, 22-31 (2017)
  8. S. S. Injeti and R. K. Annabattula, Extending Stoney’s equation to thin, elastically anisotropic substrates and bilayer films, Thin Solid Films, 598, 252-259 (2016)