• Professor, Mechanical Engineering
  • O'Donnell Foundation Chair IV Professor
  • Director, Center of Innovation in Mechanics for Design and Manufacturing (CiMDM)
  • University Distinguished Professor
  • Regents Professor
  • Affiliated Faculty, Aerospace Engineering
  • Affiliated Faculty, Civil and Environmental Engineering
  • Affiliated Faculty, Materials Science and Engineering
  • Member, National Academy of Engineering
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J.N. Reddy

Educational Background

  • Postdoctoral Fellow, Texas Institute for Computational Mechanics, University of Texas at Austin – 1973-1974.
  • Ph.D., Engineering Mechanics, University of Alabama, Huntsville – 1973
  • M.S., Mechanical Engineering, Oklahoma State University – 1970
  • B.E., Mechanical Engineering, Osmania University – 1968

Research Interests

  • Reddy is known worldwide for his significant contributions to the field of applied mechanics through his pioneering works on the development of shear deformation theories (that bear his name in the literature as the Reddy third-order plate theory and the Reddy layerwise theory) and the authorship of widely used textbooks on the linear and nonlinear finite element analysis, variational methods, composite materials and structures, applied functional analysis, and continuum mechanics. His writings have had a major impact on engineering education and technological advances around the world.

    Dr. Reddy’s research over the years has involved the development of dual-complementary variational principles in theoretical mechanics, mathematical theory of finite elements (especially mixed finite element formulations),  refined mathematical models of laminated composite plates and shells, penalty formulations of the flows of viscous incompressible fluids, least-squares formulations of solid and fluid continua, and extensions and applications of the finite element method to a broad range problems, including: composite structures, numerical heat transfer, computational fluid dynamics, and biology and medicine.  His shear deformation plate and shell theories and their finite element models and the penalty finite element models of non-Newtonian fluids have been implemented into commercial finite element computer programs like ABAQUS, NISA, and HyperXtrude.

    The current research of Dr. Reddy and his group deals with 7- and 12-parameter shell theories and non-local and non-classical mechanics theories using the ideas of Eringen, Mindlin, Koiter, and others.  Dr. Reddy and Dr. Srinivasa have conceived a transformative non-parametric network based methodology (called GraFEA) to study damage and fracture in elastic and viscoelastic solids, including composite structures.

Awards & Honors

  • 2020 Distinguished Visiting Professor, the Mechanics, Surface, and Materials Processing (MSMP), Laboratory of Arts et Metiers ParisTech (ENSAM) at Aix en Provence
  • 2019 The Timoshenko Medal, American Society of Mechanical Engineers
  • The JN Reddy Medal in Mechanics of Advanced Materials and Structures, Inaugural Recipient.
  • The Theodore von Karman Medal, The American Society of Civil Engineers (ASCE)
  • 2017 The JS Rao Medal in Vibration Engineering. The Inaugural Recipient.
  • 2017 Foreign Fellow, Brazilian Academy of Engineering, November
  • The John von Neumann Medal, The US Association of Computational Mechanics; it is the highest award given by USACM to honor individuals who have made outstanding, sustained contributions in the field of computational mechanics generally over periods representing substantial portions of their professional careers.
  • 2017 Foreign fellow, The Canadian Academy of Engineering
  • 2017 The John von Neumann Medal, The US Association for Computational Mechanics
  • 2016 ASME Medal, The American Society of Mechanical Engineers
  • 2016 Thomson Reuters IP and Science’s Web of Science Highly Cited Researchers - Most Influential Minds
  • 2016 Prager Medal, Society of Engineering Science
  • 2015 Inducted into the Hall of Fame of the College of Engineering, Technology, and Architecture at Oklahoma State University
  • 2015 Foreign Fellow, the Indian National Academy of Engineering, September
  • 2015 Member, US National Academy of Engineering (NAE), Washington, D.C.

Selected Publications

  • Md. M. Rahaman, B. Dhas, D. Roy, and J.N. Reddy, "Variational formulation for dissipative continua and incremental J-integral," Proc. Royal Society A, Vol. 474, 20170674.
  • Md Tauhidul Islam, Anuj Chaudhry, Ginu Unnikrishnan, J.N. Reddy, and Raffaella Righetti, "An analytical poroelastic model for ultrasound elastography imaging of tumors more permeable than surrounding tissues," Physics in Medicine and Biology, Vol. 63, No. 2, article 20170674, Jan 2018.
  • Archana Arbind and J.N. Reddy, “A general higher order one-dimensional theory for analysis of solid body in cylindrical co-ordinate system and it's nonlinear finite element model for large deformation,” Computer Methods in Applied Mechanics and Engineering, Vol. 328, pp.99-121, 2018.
  • Arun Srinivasa and J.N. Reddy, "An overview of theories of continuum mechanics with nonlocal elastic response and a general framework for conservative and dissipative systems," Applied Mechanics Reviews, Vol. 69, 10.1115/1.4036723, May 2017.
  • Parisa Khodabakhshi, J.N. Reddy, and Arun Srinivasa, “GraFEA: A graph based finite element approach for study of damage and fracture in brittle materials,” Meccanica (50th Anniversary Volume), Vol. 51, No. 12, 3129-3147, Dec 2016.
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