Digital Forum
Online Only
22 - 26 March 2021
Plenary Events
Monday Plenary Session
Date: Monday, 22 March 2021LIVE EVENT
Time: 9:00 AM - 11:00 AM PDT
Location: Zoom
Session Chairs: Zoubeida Ounaies, The Pennsylvania State Univ. (United States) and Hoon Sohn, KAIST (Korea, Republic of)

9:00 - 9:05 AM: Conference Welcome

9:05 - 9:15:
  • 2021 NDE Lifetime Achievement Award presented to Paul D. Wilcox, Univ. of Bristol (United Kingdom)
  • 2021 SSM Lifetime Achievement Award presented to Kwang Jin Kim, Univ. of Nevada, Las Vegas (United States)
9:15 – 10:00 AM: Plenary Presentation

Generation of Higher Harmonics and Their Application to Material Characterization
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Laurence J. Jacobs
Georgia Institute of Technology (United States)
2019 NDE Lifetime Achievement Award Winner

Predictive health monitoring will require the development of advanced sensing techniques capable of providing quantitative information on the damage state of structural materials. Second harmonic generation techniques can measure absolute, strength-based material parameters which can be coupled with uncertainty models to enable accurate and quantitative life prediction. Starting at the material level, this talk will examine a combination of sensing techniques and physics-based models to characterize damage in metals. These second harmonic techniques are acoustic-wave-based, so component interrogation can be performed with bulk, surface, and guided waves using the same underlying material physics. The talk will consider applications to characterize fatigue damage, thermal embrittlement, irradiation damage, and sensitization.

Laurence J. Jacobs is Associate Dean for Academic Affairs of the College of Engineering at the Georgia Institute of Technology, and Professor of Civil and Environmental Engineering and Mechanical Engineering. Professor Jacobs’ research focuses on the development of quantitative methodologies for the nondestructive evaluation and life prediction of structural materials.

Plenary Presentation 10:15 – 11:00 AM:

Aerospace Materials 2030: Challenges and Opportunities
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Richard A. Vaia
Air Force Research Lab. (United States)

Over a hundred years ago, the pioneers of aviation took flight in no small part due to material innovations ranging from novel casting of the aluminum engine block to judicious selection of natural materials. Unquestionably, the future of aerospace will look as different from today as the Wright Flyer and Curtiss June Bug differ from UAVs and F35s. However, the role of materials will remain unchanged; they will be the crucial ingredient that enables these future machines to push the performance envelope and become active partners with the human operator. The presentation will share thoughts on how the materials enterprise could accelerate this future through convergence of innovations in biotechnology, nanotechnology, automation, artificial intelligence, and infomatics.

Dr. Richard A. Vaia is the Senior Technologist for Emergent Material Systems in the Air Force Research Laboratory (AFRL). He has published more than 250 articles on nanomaterials, with honors including the AF McLucas Award for Basic Research, ACS Doolittle Award, Air Force Outstanding Scientist, DARPA Service Chief Fellow, and Fellow of the Materials Research Society, American Physical Society, American Chemical Society, NextFlex, and AFRL. Register for SPIE Smart Structures + NDE Digital Forum to add this event to your calendar.
Tuesday Plenary Session
Date: Tuesday, 23 March 2021LIVE EVENT
Time: 9:00 AM - 11:00 AM PDT
Location: Zoom
Session Chairs: Zoubeida Ounaies, The Pennsylvania State Univ. (United States) and Hoon Sohn, KAIST (Korea, Republic of)

9:00 – 9:05 AM: Welcome

9:05 - 9:15 Founding Chair Awards
Presented to Yoseph Bar-Cohen, Jet Propulsion Lab. (United States) and Vijay Varadan, Univ. of Arkansas (United States)

Plenary Presentation 9:15 – 10:00 AM:

Additive-manufacturing-driven, Nanocomposite-inspired Sensing Technology for New Era of Structural Health Monitoring
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Zhongqing Su
The Hong Kong Polytechnic Univ. (Hong Kong, China)

Additive manufacturing approaches, from spray-coating through drop-on-demand inkjet printing to aerosol jet printing, are used hierarchically to fabricate ultralight, flexible, compatible, nanocomposite sensors with the ability to respond precisely to high-frequency guided ultrasonic waves, yet not at the cost of sacrificing the integrity of host structures. The nanostructure of individual sensing element is morphologically optimized to facilitate triggering of a local quantum tunneling effect when modulated by ultrasonic waves. This study has spotlighted a new breed of functional composites with an endowed capability of self-health monitoring. Not only does it reduce the weight and volume penalties to composites, it also minimizes possible mechanical degradation due to sensor intrusion, blazing a trail in developing “sensor-free” SHM for composites.

Prof. Zhongqing Su is a Professor of Mechanical Engineering at the Hong Kong Polytechnic University, and the current Editor-in-Chief of Ultrasonics. His research group focuses on ultrasonic wave-based SHM, ultrasonics, sensors, and composites. He earned his Ph.D. in 2004 from the University of Sydney, Australia. He is also an Associate Editor for SHMIJ, ASME JNDE, and was a Subject Editor of JSV (2016-2018). He was the Chair of the 7th Asia-Pacific Workshop on SHM, and is the Co-Chair of the SPIE Conferences SSN06 and SSN08. He was the recipient of “SHM - Person of the Year” Award in 2012.

Plenary Presentation 10:15 – 11:10 AM:

Stretchable Electronics for Ubiquitous Physiological Monitoring
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Michelle Khine
Univ. of California, Irvine (United States)

While great advances in medicine has been made in the past century, the overall infrastructure of the healthcare system has not progressed. Patients (who are not feeling well) are still expected to travel to a centralized location for discrete, reactionary-based care where the healthcare provider only has a brief window to assess the patient’s health. Unless the symptoms are overt at the time of examination, the subjective evaluation relies heavily on the self-reporting of symptoms from the patient. This often results in delayed or improper diagnoses. In contrast, we know that physiological signals precede clinical deterioration. We have developed a suite of low-cost, unobtrusive, Band-Aid©-like physiological sensors to continuously monitor patients’ cardiovascular and pulmonary functions. We seek to continuously quantify subtle physiological changes to predict, and eventually prevent, the onset of acute clinical events.

Michelle Khine, Ph.D. is a Professor of Biomedical Engineering at UC Irvine. She is the founding Director of Faculty Innovation at the Samueli School of Engineering and founding Director of BioENGINE (BioEngineering Innovation and Entrepreneurship) at UC Irvine. Prior to joining UC Irvine, she was an Assistant & Founding Professor at UC Merced. Michelle received her BS and MS from UC Berkeley in Mechanical Engineering and her PhD in Bioengineering from UC Berkeley and UCSF. She is the Scientific Founder of 6 start-up companies. Michelle was the recipient of the TR35 Award and named one of Forbes ’10 Revolutionaries’ in 2009 and by Fast Company Magazine as one of the '100 Most Creative People in Business' in 2011. She was awarded the NIH New Innovator's Award, was named a finalist in the World Technology Awards for Materials, and was named by Marie‐Claire magazine as 'Women on Top: Top Scientist'. She was named Innovator of the Year 2017 for the Samueli School of Engineering at UC Irvine. Register for SPIE Smart Structures + NDE Digital Forum to add this event to your calendar.
Wednesday Plenary Session
Date: Wednesday, 24 March 2021LIVE EVENT
Time: 9:00 AM - 11:00 AM PDT
Location: Zoom
Session Chairs: Zoubeida Ounaies, The Pennsylvania State Univ. (United States) and Hoon Sohn, KAIST (Korea, Republic of)

9:00 – 9:05 AM: Welcome

9:05 - 9:15: EAP-in-Action Demonstration Awards

Plenary Presentation 9:15 – 10:00 AM:

Integrative Smart Systems: A Call to Action
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Diann E. Brei
Univ. of Michigan (United States)
2019 SSM Lifetime Achievement Award Winner

All around us our world is undergoing rapid transformative change, from energy to mobility to manufacturing. To meet volatile needs, there is a growing demand for integrative thinking. Integrative thinking is systematically integrating disparate disciplines to effectively tackle complex engineering problems. For decades, the field of Smart Materials and Structures has fostered an integrative mindset – it is in our DNA. Yet, while our field has made great strides in research, successful transition and adoption of technology in the field still tends to be a challenge. Highlighting several integrative smart systems from the past to the future, this talk is designed to provoke a conversation within the community with the hopes to inspire the advocacy of our integrative thinking beyond our field to empower solutions to the most pressing problems of today.

Dr. Diann Brei is the Chair of the Integrative Systems + Design Division and Professor of Mechanical Engineering at the University of Michigan. She received her PhD (1993) in Mechanical Engineering and her BSE (1988) in Computer Systems Engineering (1988). Her research is focused on the underling design science for device innovation using smart materials. Her smart material architectural models along with her multi-domain, multi-stage design methods have set the foundation for a successful translational research and development paradigm adopted by industries in the automotive, medical and aerospace sectors.

Plenary Presentation 10:15 – 11:00 AM:

Research Topics on Ultrasonic Testing of Materials and Structures
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Francesco Lanza di Scalea
Univ. of California, San Diego (United States)
2020 NDE Lifetime Achievement Award Winner

The presentation will discuss some recent research topics in the area of Ultrasonic Testing of materials and structures at UC San Diego. The first topic is the passive extraction of the Green’s function of the test piece subjected to an uncontrolled excitation. This concept is being utilized to detect, at high speed, internal defects in rail tracks using the train wheels as the acoustic excitation. The second topic deals with the nonlinear wave propagation regime and its increased sensitivity to material state awareness compared to the linear regime. Nonlinear wave propagation will be presented for the case of waveguides and the case of constrained solids subjected to thermal excursions. The third topic deals with ultrasonic Synthetic Aperture Focus (SAF) imaging and proposes some techniques to improve image quality in the cases of bulk-wave testing and guided-wave testing. The fourth topic is the identification of the elastic constants of multilayered composites based on the inversion of guided wave dispersion curves and optimization algorithms.

Francesco Lanza di Scalea (Ph.D. 97 Univ. of Palermo-Italy, Post-doc 98-99 Johns Hopkins Univ.) is a Professor of Structural Engineering and the Director of the Experimental Mechanics, NDE and SHM Laboratory at the University of California San Diego. His research and teaching interests are in the fields of experimental mechanics, non-destructive evaluation and structural health monitoring. Lanza di Scalea was awarded the UCSD Structural Engineering Teacher of the Year Award twice, the SHM Person of the Year Award, various ASNT Research Fellowship Awards, the ASNT Faculty Grant Award, and the Fulbright Scholarship. He serves on the Editorial Boards of various journals. He is a Fellow of ASNT, ASA and SEM, and a senior member of IEEE. He is most proud of many of his students who are currently in academic positions at various Universities. Register for SPIE Smart Structures + NDE Digital Forum to add this event to your calendar.
Thursday Plenary Session
Date: Thursday, 25 March 2021LIVE EVENT
Time: 9:00 AM - 11:00 AM PDT
Location: Zoom
Session Chairs: Zoubeida Ounaies, The Pennsylvania State Univ. (United States) and Hoon Sohn, KAIST (Korea, Republic of)

9:00 – 9:05 AM: Welcome

9:05 - 9:15 AM:
SPIE Best Student Papers Awards
Bioinspiration, Biomimetics, and Bioreplication Best Student Paper Awards: In Memory of H. Don Wolpert

Plenary Presentation 9:15 – 10:00 AM

Smart Structures: A Dance Between Collaboration, Creativity, and Commerce
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George A. Lesieutre
The Pennsylvania State Univ. (United States)
2020 SSM Lifetime Achievement Award Winner

Smart structures systems have evolved tremendously in the last 40 years, enabled by advances in constituent and integrative science and technology. Every significant advance was made by a talented individual who benefitted from collaborations with others offering complementary perspectives. Such interdisciplinary explorations illuminated potential disruptive functionality and exposed issues related to the realization of complicated systems. All aimed at a goal of societal impact: applications and technologies that improve people’s lives while creating businesses and jobs. Some advances have spurred novel products or capabilities, while others languish for a variety of reasons. Examples will illustrate the moves and missteps of this potent smart structures dance.

Over the last 25 years, Dr. George Lesieutre pioneered several smart structures technologies for flight vehicles. He holds a B.S. in AeroAstro from MIT and a Ph.D. from UCLA and joined Penn State from industry. He presently oversees an academic research enterprise with annual expenditures exceeding $150M. Dr. Lesieutre is a Fellow of AIAA and was a founding member of the AIAA Adaptive Structures TC.

Plenary Presentation 10:15 – 11:00 AM

3D Concrete Printing: Past, Present, and Future
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Richard Buswell
Loughborough Univ. (United Kingdom)

Digital Fabrication with Concrete (DFC) encompasses 3D Concrete Printing (3DCP) and many other on-site and off-site fabrication methods. DFC is beginning to move from an era of invention and demonstration to one of reality. It has only been 15 years since inception and yet printing offices, houses and bridges are just some of the applications that are being demonstrated at full scale. But this is not all DFC has to offer. Some of the greatest challenges face the production and maintenance of the built environment to deliver continual improvement with less material and ever-decreasing skilled labour. Automation of construction manufacturing will be critical if we are to realise Industry 4.0, providing greater productivity while reducing uncertainty and cost. DFC is at the vanguard of this aspiration and this session will take you through the technologies, the achievements and provide the future outlook for these techniques.

Richard Buswell is a Professor of Building Systems Engineering at Loughborough University in the UK and is a recognised pioneer of 3D Concrete printing. He led the development of the first off-site, large-scale additive manufacturing process that used concrete, producing world first demonstrators, the seminal material science in the field and a start-up initiative to bring the technology into the sector. Register for SPIE Smart Structures + NDE Digital Forum to add this event to your calendar.
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