UD Mechanical Engineering Vinson Lecture 2021

The Department of Mechanical Engineering is proud to announce the

Jack R. Vinson Distinguished Lecture

Yonggang Huang

Jan and Marcia Achenbach Professor of Mechanical Engineering, Northwestern University

Relation Between Blood Pressure and Pulse Wave Velocity for Human Arteries

03/19/21 | 11 a.m.

HTTPS://UDEL.ZOOM.US/J/96791702458

LECTURER BIOGRAPHY

Yonggang Huang Yonggang Huang is the Jan and Marcia Achenbach Professor of Mechanical Engineering at Northwestern University. He is interested in mechanics of stretchable electronics, and mechanically guided deterministic 3D assembly. He has published 2 books and >600 journal papers, including 10 in Science and 5 in Nature. He is a member of the US National Academy of Engineering, US National Academy of Sciences, and a fellow of American Academy of Arts and Sciences. His recent research awards include the Drucker Medal (2013), Nadai Medal (2016) and Thurston Lecture Award (2019) from the American Society of Mechanical Engineers; Prager Medal (2017) from the Society of Engineering Sciences; and Bazant Medal (2018) and von Karman Medal (2019) from the American Society of Civil Engineers. He has received awards and recognitions for undergraduate teaching and advising from the University of Arizona (1993), University of Illinois at Urbana-Champaign (2003, 2004, 2005, 2006, and 2007), and Northwestern University (2016, 2018).

ABSTRACT SUMMARY

Relation Between Blood Pressure and Pulse Wave Velocity for Human Arteries Continuous monitoring of blood pressure, an essential measure of health status, typically requires complex, costly, and invasive techniques that can expose patients to risks of complications. Continuous, cuffless, and noninvasive blood pressure monitoring methods that correlate measured pulse wave velocity (PWV) to the blood pressure via the Moens−Korteweg (MK) and Hughes Equations, offer promising alternatives.

The MK Equation, however, involves two assumptions that do not hold for human arteries, and the Hughes Equation is empirical, without any theoretical basis.

The results presented here establish a relation between the blood pressure P and PWV that does not rely on the Hughes Equation nor on the assumptions used in the MK Equation. This relation degenerates to the MK Equation under extremely low blood pressures, and it accurately captures the results of in vitro experiments using artificial blood vessels at comparatively high pressures. For human arteries, which are well characterized by the Fung hyperelastic model, a simple formula between P and PWV is established within the range of human blood pressures. This formula is validated by literature data as well as by experiments on human subjects, with applicability in the determination of blood pressure from PWV in continuous, cuffless, and noninvasive blood pressure monitoring systems.

The Jack R. Vinson Lectureship THE VINSON LECTURESHIP HONORS JACK R. VINSON, H. FLETCHER BROWN PROFESSOR EMERITUS OF MECHANICAL AND AEROSPACE ENGINEERING AT THE UNIVERSITY OF DELAWARE. Dr. Jack Vinson received his BS of Mechanical Engineering from Cornell University and Ph.D. in Engineering Mechanics from the University of Pennsylvania. After several years of research in defense and industry, Dr. Vinson joined the University of Delaware in 1964 and served as Chairman of the Mechanical and Aerospace Engineering Department at Delaware for fourteen years (1965-79).

Dr. Vinson is credited with teaching one of the first composites courses in the US in 1969. Dr. Vinson co-founded of the Center for Composite Materials at the University of Delaware in 1974 and was its first Director. For the past four decades, Dr. Vinson has been a dedicated teacher, a prominent researcher in structural mechanics and composite materials, an author or co-author of seven popular textbooks, a highly active contributor to several professional societies and an inspiring mentor to graduate and undergraduate students.

Dr. Vinson is a Life Fellow of the American Society of Mechanical Engineers (ASME), a Fellow of the American Institute of Aeronautics and Astronautics (AIAA), and a Fellow of the American Society for Composites (ASC). He was Chairman of the ASME Aerospace Division, and was twice the Chairman of the ASME Structures and Materials Committee. He has served on the AIAA Structures Technical Committee twice, and was an Associate Editor of the AIAA Journal. He is a past recipient of the Office of Naval Research (ONR)-AIAA Research Award. He is a Past President of ASC and has been the recipient of the ASC Technomic Award.

In 2007, he was awarded the ASC National Distinguished Research Award. He has authored/co-authored eight textbooks, almost all of which deal with composite materials and their use in various structures and products. He is the founder and Editor-in-Chief of the Journal of Sandwich Structures and Materials. Upon his retirement in 2005, Dr. Vinson continues to teach his four graduate courses at UD via long distance learning to students throughout the United States and abroad. He continues his consulting practice through his firm, Structural Mechanics Associates.

Past Vinson Lecturers 2019 | DIMITRIS BERTSIMAS MASSACHUSETTS INSTITUTE OF TECHNOLOGY 2018 | ALEXANDRE M. BAYEN UNIVERSITY OF CALIFORNIA BERKELEY 2017 | TSU-WEI CHOU UNIVERSITY OF DELAWARE 2016 | KEN E. GOODSON STANFORD UNIVERSITY 2015 | ARUN MAJUMDAR STANFORD UNIVERSITY 2014 | LORNA GIBSON MASSACHUSETTS INSTITUTE OF TECHNOLOGY 2013 | NADINE AUBRY NORTHEASTERN UNIVERSITY 2012 | BELINDA A. BATTEN OREGON STATE UNIVERSITY 2011 | SHELDON WEINBAUM THE CITY COLLEGE OF NEW YORK 2010 | SUBRA SURESH MASSACHUSETTS INSTITUTE OF TECHNOLOGY 2009 | IWONA JASIUK UNIVERSITY OF ILLIONOIS 2008 | FU-KUO CHANG STANFORD UNIVERSITY 2006 | ROBERT SIERAKOWSKI AIR FORCE RESEARCH LABORATORY 2005 | DANIEL J. INMAN VIRGINIA TECH 2004 | SAMUEL I. STUPP NORTHWESTERN UNIVERSITY

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