Presenter：Yihao Song
Topic：Research Progress
Time: 2023/5/17 16:00-17:00
Place：Room 214，AMIS Lab，JI-Building
Professor Tribikram Kundu, from the University of Arizona, visited JI and delivered a lecture of “Recent Developments In Non-Destructive Testing and Structural Health Monitoring Technology” on December 19th, 2023. The presentation covered the research carried out by the speaker over the last three decades on structural health monitoring and non-destructive evaluation techniques for engineering and biological materials and structures. In particular, it focused on acoustic source localization (ASL) and damage detection techniques using linear and nonlinear ultrasonic methods. The SJTU scholars and AMIS researchers had a great opportunity to communicate with Professor Kundu.
Shulong Zhou, a second-year doctoral student in the AMIS lab, delivered an oral presentation at the International Conference on Aerospace Structural Dynamics (ICASD) and presented his research work on piezoelectric composites. Through the collaborative design of piezoelectric composites at the micro and macro scales, this study proposed a novel sensor integration approach for structural health monitoring. This system combines the structural self-sensing ability with the load-bearing function. The organization committee selected the best oral presentations. The competition was based on the voting of the experts at the venue. Finally, Shulong's talk stood out and won the best oral presentation award. Runye Lu, a fourth-year doctoral student in the AMIS lab, presented a paper and a poster presentation at the QNDE 2023 conference, reporting his work on the monitoring of bolt loosening. In this study, the nonlinear impedance method was proposed to break through the limitations of traditional methods insensitive to incipient loosening. The nonlinear effect and the change of structural resonance information were used to monitor the bolt throughout the service span. The poster eventually won the best poster of the conference through fierce competition.
The University of Michigan-Shanghai Jiao Tong University Join Institute (JI) Associate Professor Yanfeng Shen just won the "Highest Citation Paper Award" from ASME Journal of Nondestructive Evaluation, Diagnostics and Prognostics of Engineering Systems. Warm congratulations!
Professor Fuh-Gwo Yuan, from North Carolina State University, visited JI and delivered a speech of “We Are Small! But We Can Do Big Things!-An Engineer's Reflection” on May 5th, 2023. The presentation covered both frontier fundamental and applied research on structural health monitoring/management (SHM), non-destructive evaluation (NDE), machine learning, multi-functional materials, nano/meso scale sensors, advanced computing tools with smart sensors, damage prognosis, and energy harvesting. The SJTU scholars and AMIS researchers had a great opportunity to communicate with Professor Yuan.
Recently, the 2021 National Scholarship winners have been announced. AMIS lab members, Junzhen Wang, Lingchun Yan, and Shaopeng Jiang were recognized by this honor. Congratulations to all three students!
Professor Yanfeng Shen has won the award of 2021 Shanghai Jiao Tong University Ko Guan Top Ten Teachers, claiming the highest number of votes in the final competition held on December 16 in the No. 100 Auditorium of Chen Ruiqiu Building, SJTU Minhang campus.
In Nov. 2021, the International Mechanical Engineering Congress & Exposition (IMECE) was held online by the American Society of Mechanical Engineers (ASME). AMIS PhD student, Runye Lu, attended the meeting and delivered an oral presentation on his recent research progress about the health monitoring of high-damping viscoelastic materials. This work pushed the barrier of electro-mechanical impedance spectroscopy (EMIS) method for high-damping viscoelastic material applications. Runye utilized artificial resonance peaks derived from sub-resonators to address the great challenge of large energy attenuation at high frequencies. His method considerably improved the sensitivity of EMIS for the health monitoring of high-damping viscoelastic materials. The Best Student Paper Award competition was organized by ASME Noise Control and Acoustics Division (NCAD). The competition result was based on the evaluation from the NCAD Expert Committee. Finally, Runye’s paper stood out in the fierce competition and won the First Place of the Best Student Paper Award.
Professor Yanfeng Shen has obtained support from Shanghai Rising-Star Program (Class A), after his research project entitled “Investigation on the Mechanism of Ultrasonic Sensing for Incipient Damage in Complex Structures” was approved by the Science and Technology Commission of Shanghai Municipality (STCSM). Related research tasks will be carried out at Shanghai Key Laboratory for Digital Maintenance of Buildings and Infrastructure, according to a recent STCSM announcement. Engineering structures are prone to material degradation, fatigue and corrosion due to cyclic loadings and hash service environments. If incipient structural damage situations are not found, they may cause catastrophic failures. There have been innumerable accidents in aerospace, mechanical, structural, and civil engineering, resulting in heavy loss of treasure and lives. Thus, it is of critical importance to achieve online nondestructive evaluation and real-time health monitoring of engineering infrastructures to enhance their safety and reliability. Structural health monitoring technology may push the barrier for reducing the maintenance cost, elongating the service lives of equipment and structures, as well as contributing boosting economic value to the industry.
The Active Materials and Intelligent Structures (AMIS) Lab focuses on developing advanced structural health monitoring (SHM), online nondestructive evaluation (NDE), and fault diagnostic technology of aerospace, mechanical, and civil structures. We conduct research on various cutting-edge technologies, covering piezoelectric wafer active sensors, scanning laser Doppler vibrometry, tunable metamaterials, and distributed sensing. The strength of AMIS Lab resides in the strong comprehension of vibration and wave mechanics, the analysis of complex structural systems via analytical and numerical modeling, as well as sensing data processing methods. We strive to provide the state-of-the-art solutions...
Learn MorePresenter：Yihao Song
Topic：Research Progress
Time: 2023/5/17 16:00-17:00
Place：Room 214，AMIS Lab，JI-Building
Presenter：Hexuan Xu
Topic：Research Progress
Time: 2023/3/31 16:00-17:00
Place：Room 214，AMIS Lab，JI-Building
Presenter：Haoyu Fu
Topic：Research Progress
Time: 2023/3/17 16:00-17:00
Place：Room 214，AMIS Lab，JI-Building
Presenter：Xuezhi Peng, CATL Group
Topic：Research Progress
Time: 2021/4/16 15:00-16:00
Place：Room 212-10，AMIS Lab，JI-Building
Presenter：Yiran Tian
Topic：Research Progress
Time: 2021/4/2 15:00-16:00
Place：Room 212-10，AMIS Lab，JI-Building
Guided waves generation, propagation, interaction with damage, and reception in piezoelectric composite plate
Wave generation and propagation in an anisotropic composite panel: theoretical phase velocity curve; experiment (left) vs. numerical simulation (right)
Damage imaging using virtual time reversal algorithm before and after transducer transfer function compensation
Time reversal results for damage localization and imaging in piezoelectric composite plates
Dispersion curves of unit cells with different aluminum and lead cylinder height ratios (shifting bandgaps)
Active sensing experiment for fatigue crack detection (up) and fatigue experiment (bottom)
Nonlinear scattering and mode conversion of Lamb waves from a rough fatigue crack
Nonlinear interaction between guided waves and impact damage in piezoelectric composite plate
Highly efficient modeling of wave propagation in a damaged rail track: rail head crack
Highly efficient modeling of wave propagation in a damaged rail track: rail foot crack
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