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Ramathasan Thevamaran

Ramathasan Thevamaran

Bernard A. and Frances M. Weideman Associate Professor

Professor Thevamaran’s research focuses on advancing our fundamental knowledge of process-structure-property-function relations in structured materials such as hierarchical carbon nanotube foams and mats, gradient-nano-grained metals, polymer nanocomposites, and nonhermitian and parity-time symmetric metamaterials. His research group investigates such structured materials over a broad length- and timescales using a variety of tools such as laser-enabled microballistics, direct macroscale impact testing, vibration testing, and quasistatic compression and tension testing apparatuses along with scanning and transmission electron microscopy and high-speed microscope. His research group is primarily experimental and uses numerical and analytical techniques to guide the experiments. The key design principles developed through his fundamental research will guide the development of revolutionary materials for various engineering applications—from impact protection to controlling mechanical waves and vibrations in unprecedented ways.
Professor Thevamaran has earned a Doctor of Philosophy and a Master of Science in Mechanical Engineering from the California Institute of Technology (Caltech), CA and a Bachelor of Science in Engineering in Civil Engineering from the University of Peradeniya, Sri Lanka. Prior to joining University of Wisconsin, he was a Postdoctoral Research Associate at the Department of Materials Science and NanoEngineering of Rice University, TX.

Department

Mechanical Engineering

Contact

539, Engineering Research Building
1500 Engineering Dr
Madison, WI

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Professor Ramathasan Thevamaran, Mechanical Engineering, University of Wisconsin-Madison

  • PhD 2014, California Institute of Technology
  • MS 2010, California Institute of Technology
  • BS 2008, University of Peradeniya—Peradeniya, Sri Lanka

  • Mechanical behavior of structured materials
  • Dynamic properties
  • Hierarchical materials
  • Nanomaterials
  • Metamaterials
  • Wave propagation
  • Experimental techniques

  • 2024 College of Engineering, University of Wisconsin-Madison, Bernard A. and Frances M. Weideman Associate Professorship
  • 2024 Office of the Provost, University of Wisconsin-Madison, Vilas Early Career Investigator Award
  • 2022 The National Aeronautics and Space Administration (NASA, NASA Early Career Faculty Award
  • 2022 Wisconsin Alumni Research Foundation, WARF Innovation Award
  • 2021 American Society for Engineering Education (ASEE), Ferdinand P. Beer and E. Russel Johnston, Jr. Outstanding New Mechanics Educator Award
  • 2019 University of Wisconsin-Madison, Faculty Fellow, Madison Teaching and Learning Excellence (MTLE)
  • 2014 British Society for Strain Measurement, Young Stress Analyst (second prize)
  • 2012 IUTAM, Travel Award
  • 2009 California Institute of Technology, Mechanical Engineering Fellowship
  • 2008 University of Peradeniya, A. Thurairajah Prize for Geotechnics
  • 2008 University of Peradeniya, C. H. Hewavitharana Prize for the Best Performance in Engineering
  • 2008 University of Peradeniya, Ceylon Development Engineering Prize for the Best Performance in Civil Engineering
  • 2008 University of Peradeniya, E. O. E. Pereira Prize for Structures
  • 2008 University of Peradeniya, M. Amaratunga Prize for Strength of Materials
  • 2004 University Grant Commission, University of Peradeniya, Mahapola Higher Education (Merit) Scholarship

  • Xu, H., Lee, S., Cai, J., & Thevamaran, R. (2024). Micro-craters and phase transformations induced by supersonic microprojectile impacts. In 2024 Goldschmidt Conference.
  • Chen, R., Cai, J., Chin, K. C., Wang, S., Boydston, A. J., Thevamaran, R., & Gopalan, P. (2024). Block copolymer additives for toughening 3D printable epoxy resin. Giant, 17, 100204.
  • Griesbach, C., Bronkhorst, C. A., & Thevamaran, R. (2024). Crystal plasticity simulations reveal cooperative plasticity mechanisms leading to enhanced strength and toughness in gradient nanostructured metals. Acta Materialia, 270, 119835.
  • Fang, Y., Tuxbury, W., Gupta, A., Kottos, T., & Thevamaran, R. (2024). Damping reveals hidden dimensions in elastic metastructures through induced transparency. Physical Review Applied, 21(5), 054022.
  • Gupta, A., Chawla, K., & Thevamaran, R. (2024). Embracing Nonlinearity and Geometry: A dimensional analysis guided design of shock absorbing materials. arXiv preprint arXiv:2406.04803.
  • Maheswaran, B., Chawla, K., & Thevamaran, R. (2024). Mitigating Oblique Impacts by Unraveling of Buckled Carbon Nanotubes in Helmet Liners. Experimental Mechanics, 64(2), 197-209.
  • Chawla, K., Cai, J., Thompson, D., & Thevamaran, R. (2024). Superior thermal transport properties of vertically aligned carbon nanotubes tailored through mesoscale architectures. Carbon, 216, 118526.
  • Masri, A., Zhang, Y., Rezwan, A. A., Griesbach, C., Thevamaran, R., Gerczak, T., & Jiang, W. (2023). Effects of Porosity on Buffer Layer Fracture Mode. In Materials in Nuclear Energy Systems (MiNES 2023).
  • Kononchuk, R., Cai, J., Ellis, F., Thevamaran, R., & Kottos, T. (2023). Author Correction: Exceptional-point-based accelerometers with enhanced signal-to-noise ratio. Nature, 615(7953), E22-E22.
  • Chawla, K., Gupta, A., & Thevamaran, R. (2023). Disrupting density-dependent property scaling in hierarchically architected foams. ACS nano, 17(11), 10452-10461.

  • EMA 489 - Honors in Research (Fall 2025)
  • EMA 599 - Independent Study (Fall 2025)
  • EMA 790 - Master's Research and Thesis (Fall 2025)
  • EMA 890 - Pre-Dissertator Research (Fall 2025)
  • EMA 990 - Research and Thesis (Fall 2025)
  • ME 790 - Master's Research and Thesis (Fall 2025)
  • ME 890 - PhD Research and Thesis (Fall 2025)
  • ME 990 - Dissertator Research and Thesis (Fall 2025)
  • MS&E 699 - Independent Study (Fall 2025)
  • MS&E 790 - Master's Research or Thesis (Fall 2025)
  • MS&E 890 - Pre-Dissertator's Research (Fall 2025)
  • MS&E 990 - Research and Thesis (Fall 2025)
  • N E 790 - Master's Research and Thesis (Fall 2025)
  • N E 890 - Pre-Dissertator's Research (Fall 2025)
  • N E 990 - Research and Thesis (Fall 2025)
  • EMA 599 - Independent Study (Summer 2025)
  • EMA 790 - Master's Research and Thesis (Summer 2025)
  • EMA 890 - Pre-Dissertator Research (Summer 2025)
  • EMA 990 - Research and Thesis (Summer 2025)
  • ME 790 - Master's Research and Thesis (Summer 2025)
  • ME 890 - PhD Research and Thesis (Summer 2025)
  • ME 990 - Dissertator Research and Thesis (Summer 2025)
  • MS&E 699 - Independent Study (Summer 2025)
  • MS&E 790 - Master's Research or Thesis (Summer 2025)
  • MS&E 890 - Pre-Dissertator's Research (Summer 2025)
  • MS&E 990 - Research and Thesis (Summer 2025)
  • N E 790 - Master's Research and Thesis (Summer 2025)
  • N E 890 - Pre-Dissertator's Research (Summer 2025)
  • N E 990 - Research and Thesis (Summer 2025)
  • EMA 405 - Practicum in Finite Elements (Spring 2025)
  • EMA 599 - Independent Study (Spring 2025)
  • EMA 700 - Theory of Elasticity (Spring 2025)
  • EMA 990 - Research and Thesis (Spring 2025)
  • ME 790 - Master's Research and Thesis (Spring 2025)
  • ME 890 - PhD Research and Thesis (Spring 2025)
  • EMA 599 - Independent Study (Fall 2024)
  • EMA 990 - Research and Thesis (Fall 2024)
  • ME 790 - Master's Research and Thesis (Fall 2024)
  • ME 890 - PhD Research and Thesis (Fall 2024)
  • EMA 599 - Independent Study (Summer 2024)
  • EMA 990 - Research and Thesis (Summer 2024)
  • ME 790 - Master's Research and Thesis (Summer 2024)
  • ME 890 - PhD Research and Thesis (Summer 2024)
  • ME 990 - Dissertator Research and Thesis (Summer 2024)
  • EMA 405 - Practicum in Finite Elements (Spring 2024)
  • EMA 489 - Honors in Research (Spring 2024)
  • EMA 890 - Pre-Dissertator Research (Spring 2024)
  • ME 790 - Master's Research and Thesis (Spring 2024)
  • ME 890 - PhD Research and Thesis (Spring 2024)
  • ME 990 - Dissertator Research and Thesis (Spring 2024)
  • MS&E 890 - Pre-Dissertator's Research (Spring 2024)
  • MS&E 990 - Research and Thesis (Spring 2024)
  • EMA 405 - Practicum in Finite Elements (Fall 2023)
  • EMA 489 - Honors in Research (Fall 2023)
  • EMA 599 - Independent Study (Fall 2023)
  • EMA 890 - Pre-Dissertator Research (Fall 2023)
  • ME 790 - Master's Research and Thesis (Fall 2023)
  • ME 890 - PhD Research and Thesis (Fall 2023)
  • ME 990 - Dissertator Research and Thesis (Fall 2023)
  • MS&E 890 - Pre-Dissertator's Research (Fall 2023)
  • MS&E 990 - Research and Thesis (Fall 2023)