Technical Seminar: Shedding New Lights on Seismic Metamaterial Design from the Perspective of Multidirectional Wave Attenuation

Technical Seminar:
Shedding New Lights on Seismic Metamaterial Design from the Perspective of Multidirectional Wave Attenuation

Date, time & venue

29 May 2024 (Wednesday), 17:00-18:00, Seminar via Zoom Meeting

Organized by

HKIE Civil Division and The Hong Kong Polytechnic University

Programme Highlight

Seismic metamaterials (SMs) present an emerging technology for protecting infrastructures from earthquakes. They exhibit exceptional strength in directing seismic waves, leading to significantly improved energy absorption compared to traditional methods. Considering the direction of the incident seismic wave is generally unknown due to the unpredictable nature of earthquakes, this study aims to quantify multidirectional seismic attenuation performance of SMs and use it as the key metric for guiding SM design in real-world scenarios. A high-fidelity modeling approach is developed, which is further integrated with tailored features to achieve efficient performance assessment. Building upon this approach, a hierarchical design, involving the optimal identification of unit cell topology and unit cell arrangement pattern in the SM, is conducted to enhance the multidirectional seismic attenuation performance. This study offers a novel perspective on the SM design by incorporating practical considerations, showcasing practical applicability and significance. The efficacy of the proposed methodology is validated by implementing a comprehensive case study of the SM design.

Language

English

Fee

Free of Charge.

Speakers
Dr Kai Zhou is currently an Assistant Professor in Department of Civil and Environmental Engineering at The Hong Kong Polytechnic University (PolyU). He received his Bachelor and Ph.D. degrees from Chongqing University and University of Connecticut (UConn), respectively. After graduation, he worked in the Bentley Systems as a research engineer for civil engineering software development, and then returned to academia as a postdoctoral researcher at UConn with the key focus on the uncertainty quantification in advanced manufacturing processes funded by Air Force Research Laboratory (AFRL), USA.

Dr Kai Zhou has a broad research interest, ranging from structural dynamics, vibration and noise control, structural health monitoring, to smart materials and sensors. He has strong expertise in data-driven design optimization, uncertainty quantification and reliability analysis, machine learning, and modeling and simulation of multi-physics systems and processes. He currently serves as a member of Technical Committee on Vibration, Dynamic System & Control Division, ASME, and the associate editor of the Cureus Journal of Engineering (Springer Nature). In addition, he has been the session chairs for multiple international conferences, such as ASME IDETIC, ASME SMASIS, MECC, etc., and has won the outstanding service awards for topic chair of ASME IDETC in 2022 and 2023.

Registration & Enquiries

Please complete the on-line registration at https://us02web.zoom.us/webinar/register/WN_CEWVgHq6TKq0Yd63SmqIFQ. The number of participants is limited to 500 on a first-come-first served basis. Priority will be given to members of the Civil Division.

Email registration will not be accepted. Successful applicants will be informed by email and provided a link to the Zoom Meeting at the designated time slot. Participants need to sign in using the membership no. and name entered at the time of registration. A CPD certificate will be issued 3 weeks after the seminar based on this membership no. and name.

For enquiries, please contact Mr. David Wong via email: davidwong@pyengineering.com.