Professor J. N. Reddy, Texas A & M University, College Station

On numerical simulations of physical phenomena and nonlocal and strain gradient theories
When Jun 09, 2016
from 02:00 PM to 03:00 PM
Where LR1
Contact Name
Contact Phone 01865-273172
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In this lecture, two distinct topics are addressed. The first one deals with numerical simulations of biological cells, composite and functionally graded shells, and flows of viscous incompressible fluids. The second topic deals with the authors’ recent research on nonlocal elasticity and modified couple stress/strain gradient theories in formulating the governing equations of functionally graded material beams and plates. The importance of numerical simulations of biological cells is discussed briefly, followed by the development of a high-order spectral/hp continuum shell finite element that is free of all types of locking, and the least-squares finite element model for the numerical simulation of flows of viscous incompressible fluids. In the second part of the lecture, two different nonlinear gradient elasticity theories that account for geometric nonlinearity and microstructure-dependent size effects are revisited to establish the connection between the modified couple stress theory of Mindlin and the strain gradient theory of Srinivasa-Reddy. Some numerical examples are presented to bring out the salient features.


About the author:

Dr. Reddy is a Distinguished Professor, Regents’ Professor, and inaugural holder of the Oscar S. Wyatt Endowed Chair in Mechanical Engineering at Texas A&M University, College Station, Texas. Dr. Reddy earned a Ph.D. in Engineering Mechanics in 1974 from University of Alabama in Huntsville. He worked as a Post-Doctoral Fellow in Texas Institute for Computational Mechanics (TICOM) at the University of Texas at Austin, Research Scientist for Lockheed Missiles and Space Company, Huntsville, during l974-75, and taught at the University of Oklahoma from 1975 to 1980, Virginia Polytechnic Institute & State University from 1980 to 1992, and at Texas A&M University from 1992.

Dr. Reddy’s research has involved theory and applications of the finite element method to a broad range of problems, encompassing composite structures, numerical heat transfer, computational fluid dynamics, and biology and medicine.  His shear deformation plate and shell theories and their finite element models have been implemented into commercial finite element computer programs like ABAQUS, NISA, and HyperXtrude. Dr. Reddy is one of the original top 100 ISI Highly Cited Researchers in Engineering around world with over 19,640 citations  with h-index of over 66 as per Web of Science; the number of citations is over 47,000 with h-index of 89 and i10-index of 405 as per Google Scholar. Dr. Reddy is a member of the US National Academy of Engineering and a Foreign Fellow of the Indian National Academy of Engineering.