We do research on the mechanics of metamaterial to develop insight comprehension on how wave modulation occurs due to several periodic alterations of the constitutive unit cell of the metamaterial. Effect of coupling, veering, and locking of various wave modes on the bandgap generation, due to the periodicity, usual attachments or boundary conditions, internal architecture, etc. Extensive study has been performed on the monocouple systems, mass-in-mass (negative mass/inertia) metamaterial, negative stiffness, inertial amplifier, nonlinear and non-reciprocal metamaterial. In addition to the standard bandgap study, we also carried out research on the estimation of overall damping enhancement. Damping enhancement is crucial in mitigating transient responses caused due to extreme events such as storms, earthquakes, blasts, impacts, etc. In parallel to the theoretical advancement, we also make prototypes of metamaterial structures and try to use these in controlling the vibration of various infrastructures. We have designed suitable metamaterials for wind turbine towers, lightweight panel walls, railway pads, piles, and structural sections. Reduced scale lab testing is performed to assess their performance. We have expertise in formulating spectral element matrices, and obtaining closed-form expressions for vibration control. We also often use machine learning and artificial intelligence for predicting responses or designing and obtaining optimum parameters.
We also extensively work on the clean and green renewable energy sector. We do research on the analysis and design of offshore and onshore wind turbine piles and towers, their blades, solar panel mounting structures, etc. Recently exploring the edge-state phenomenon of periodic lattice and inertial amplification we have enhanced the bandgap and energy harvesting level significantly.
Non-reciprocal metamaterial from actuation and sensing
Active meta damping
Spectral element formulation and non-linear eigenvalue:
Energy harvesting
Bandgap merging
Metamaterial-based rail pad for noise control
Metamaterial-impregnated wind-turbine tower and pile system
Nonlinear metamaterial
2D metamaterial
Dr. Banerjee has been serving the Civil Engineering Department of IIT Delhi as Assistant Professor, grade-I since March 2021. He joined IIT Delhi as Assistant Professor, grade-II in May 2019. He started his professional career as an Assistant Professor, grade-II at IIT Jammu in August 2018. Dr. Arnab Banerjee earned his Ph.D. from the University of Auckland, New Zealand in March 2018 in mechanical metamaterial. Before that, he received M.Tech and B.Tech degrees in Structural Dynamics from the Earthquake Engineering Department of IIT Roorkee in 2013 and Construction Engineering from Jadavpur University in 2011, respectively.
Dr. Banerjee received the following recognition:
INAE Young Associate from the Indian National Academy of Engineering (INAE) in 2023.
Invited speaker in Phononics-2023 at Manchester, UK.
Inspire Faculty Award from the Department of Science and Technology (DST) India on 2018.
Newton International postdoctoral Fellow from Royal Society London on 2018
In the top 2% of researchers for citations in last year's 2023 list published from the University of Standford.
Best research paper award in 6th International conference on Computational Mechanics (ICCM), at Auckland on 2014.