The 2020 JN Reddy Medal Inaugural Recipient

C.W. Lim

Professor, Department of Architecture and Civil Engineering, City University of Hong Kong, P.R. China

Citation:

For significant and original contributions to vibration of plates and shells, smart piezoelectric structures, nanomechanics, and symplectic elasticity.

Ir Professor Lim received a BEng from University of Technology of Malaysia, MEng and PhD from National University of Singapore and Nanyang Technological University, respectively. Prior to joining City University of Hong Kong (CityU), he was a post-doctoral research fellow at the University of Queensland and the University of Hong Kong. He has expertise in theory of plates and shells, dynamics of smart piezoelectric structures, nanomechanics, metamaterials and symplectic elasticity.

Two highlights of Professor Lim’s research impact are as follows.

One of Professor Lim’s first-authored papers, published in JMPS jointly with Professor J.N. Reddy, is not only a highly cited paper with over 560 citations in the journal but also the most cited paper since 2009 although it was first published much later in 2015. This work generalizes and integrates two separate models, the nonlocal elasticity and the strain gradient theory, to a generalized nonlocal strain gradient theory. It is the first reported work that successfully explains the intriguing experiment observation of integrated softening-hardening dispersive frequency response published by Brockhouse and Iyengar in 1958 from measurements of neutron scattering in germanium.

Professor Lim published one very well-selling title in Engineering Mechanics entitled “Symplectic Elasticity”, as recorded in April 2010 and again in June 2011 by the publisher, World Scientific. His work on symplectic elasticity is recognized as one of the breakthrough analytical methodologies beyond the classical Timoshenko approaches. It derives asymptotic analytical solutions for plates and shells problems beyond the Navier and Levy solution methods.

Professor Lim is one of the editors for JoMMS, Assoc Editor (Asia-Pacific Region) for JVET, Assoc Editor for IJBC, subject editor for AMM, etc. and also on the editorial board of more than 10 international journals. He has published more than 300 international journal papers, accumulated more than 10500 citations and had an H-index 54. One of his papers was granted the IJSS 2004-2008 most cited article award. He was also awarded Top Referees in 2009, Proc. A, The Royal Society. Professor Lim is also a registered professional engineer (RPE) in Hong Kong. He is a co-inventor of two patents on local surface nanocrystallization treatment methods and devices. Currently, he is a fellow of American Society of Mechanical Engineers (ASME), American Society of Civil Engineers (ASCE), Engineering Mechanics Institute (EMI) and Hong Kong Institution of Engineers (HKIE).

Glaucio Paulino

Raymond Allen Jones Chair and Professor Department of Civil and Environmental Engineering Georgia Institute of Technology

Citation:

For pioneering contributions to theoretical and computational mechanics leading to advances in mimetic inspired methods, topology optimization, and geometric mechanics associated to origami engineering including configurational metamaterials and reconfigurable structural systems.

Professor Paulino received his B.S. (1985) from University of Brazilia, M.S. (1988) from PUC-Rio, Brazil, and M.S. (1993) and Ph.D. (1995) from Cornell University. His academic appointments include University of California at Davis (1995-1998), University of Illinois at Urbana Champaign (1998-2015), before joining Georgia Tech in 2015. He also served as the Program Manager at National Science Foundation (2009-2012). He moved in 2021 as the Margareta Engman Augustine Professor of Engineering in Civil and Environmental Engineering and the Princeton Materials Institute, Princeton University.

Professor Paulino’s seminal contributions are in applied and computational mechanics, which include the development of methodologies to characterize the deformation and fracture behavior of existing and emerging materials and structural systems; topology optimization for large-scale multiscale/Multiphysics problems; and geometric mechanics associated to origami and tensegrity engineering including configurational metamaterials and reconfigurable structural systems. According to a Daily Digest article, he created “Tech’s first Origami Engineering class” (arguably the first in the USA) during the Fall/2017 and received the “Class of 1940 Course Survey Teaching Effectiveness Award”. He earned the Walter L. Huber Civil Engineering Research Prize from ASCE (2004) and he is a Fellow of USACM (2011), IACM (2012), AAM (2015), EMI/ASCE (2017), and ASME (2019). He received the 2014 Ted Belytschko Applied Mechanics Award from ASME; and the 2015 Cozzarelli Prize from the National Academy of Sciences (NAS), “which recognizes recently published PNAS papers of outstanding scientific excellence and originality,” and the 2020 Drucker Medal from the American Society of Mechanical Engineers. His PNAS paper presents a unique method of coupling tubes derived from the Miura-ori pattern – the “zipper coupled” tubes have a single flexible motion for deployment but are substantially stiffer for all other deformations such as bending and twisting. Such versatility can be used for making various deployable systems ranging from metamaterials and micro-robotics to aerospace systems and deployable architecture. The PNAS altmetric score indicates that it is “in the top 5% of all research outputs scored by Altmetric” and has “High Attention Score compared to outputs of the same age (99th percentile).” According to the PNAS website, its abstract was downloaded more than 28,000 times. The zipper tubes have been patented in the USA and Japan. In summary, Professor Paulino has contributed to research and education through his publications, well-written series of educational papers, and professional service (e.g. President of SES, 2018). In was elected to the US National Academy of Engineering in 2021 (soon after he received the JN Reddy Medal).

Link to Web Page: https://cee.princeton.edu/people/glaucio-h-paulino