DEPARTMENT OF MECHANICAL ENGINEERING Indian Institute Of Technology Madras
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Ratna Kumar Annabattula

Professor

208, Machine Design Section

PhD from University of Groningen, The Netherlands

+91-44-2257-4719

ratna[at]iitm[.]ac[.]in

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  • 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 researcher at Karlsruhe Institute of Technology, Germany for about two and half years before joining IIT Madras in December 2012. He worked at G.E. India Technology Centre, Bangalore, India for about 10 months as a Design Engineer during 2004-2005.
  • His current research interests include mechanics of stimuli-responsive thin films, mechanics of granular materials and multi-scale materials modeling.

  • Stimuli-Responsive Soft Materials
  • Mechanics of Granular Materials
  • Coupled Problems in Mechanics

  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

    Current Courses

  • ID6108 - Process and Design for Additive Manufacturing
  • ME2200 - Materials and Design

    Previous Courses

  • ME2200 - Materials and Design
  • ME7223 - Optimisation Methods for Mechanical Design
  • ME6232 - Mechanics of Thin films for Microsystem Design
  • ME5201 - Computational Methods in Engineering
  • ME5203 - Advanced Mechanics of Solids
  • ME5204 - Finite Element Analysis

  1. Vipin Kumar, Sachin Singh Rajput, Ratna Kumar Annabattula*, and Dillip K. Satapathy* Rapid response of polyvinylidene fluoride films to vapor stimuli: Role of polymorphic phase fractions, Applied Physics Letters, 126, 144101 (2025)
  2. Sujith Reddy Jaggannagari, Yixiang Gan, Ratna Kumar Annabattula* A comparative study of JKR and DMT contact models for the DEM simulation of powder spreading in additive manufacturing, Computational Particle Mechanics (2025)
  3. Sujith Reddy Jaggannagari, Wen Hao Kan, Louis N.S. Chiu, Gwénaëlle Proust, Aijun Huang, Yixiang Gan, Ratna Kumar Annabattula* Numerical and experimental analysis of powder bed homogeneity through multi-layer spreading in additive manufacturing, Additive Manufacturing, 97, 104571 (2025)