Dr. Sanjeet Kumar Singh, awarded  Doctoral degree under the supervision of  Prof. Shantanu Bhattacharya at IIT Kanpur, India. He has submitted a thesis in the area of ACOUSTIC METAMATERIALS

Throughout his doctoral research, he focused on creating and enhancing thin and ventilated acoustic metamaterials specifically designed for aerospace applications. Within aircraft, the predominant source of cabin noise stems from both engine noise and turbulent airflow. Turbofan-powered aircraft produce noise within the 800-12000Hz range, while turbojets exhibit notable acoustic signals in the 100-800Hz , and turbojets exhibiting significant acoustic signals in the 100-800Hz range. For that, he has crafted three types of metamaterials with diverse designs, modeled their damping frequencies, prototyped panels, and extensively tested them for aerospace applications. Our research aimed to create thin, lightweight acoustic metamaterials for sound mitigation in low to medium frequencies. Previous structures effectively absorbed sound but hindered airflow, posing challenges in aerospace multifunctionality. To overcome this, we developed one- and two-dimensional meta-materials, allowing sound passage and absorption in the low to mid-frequency range. Computational, theoretical (Transfer Matrix method), and experimental studies confirmed their performance.

In his prior MTech. research, he investigated the buckling and vibrational characteristics of fiber composite plates featuring hexagonal cut-outs. This involved assessing cut-out ratio and orientation across different laminate configurations. The analysis was conducted using ANSYS-13.0 software and applied first-order shear deformation theory for both thin and thick laminates. Additionally, explored comparisons with square cut-outs, considering equal area, boundary conditions, and loading conditions.

He has expertise in the filed of acoustic metamaterials , fluid-structure interaction, as well as  involvement in teaching and Innovative product design