• G. U. Patil, H. S. Kwon, B. I. Popa, Interpreting how neural networks infer scatterer geometry from echolocation echoes, Advanced Intelligent Systems, 8, e70434 (2026) [Link] 

• H. S. Kwon, G. U. Patil, B. I. Epureanu, B. I. Popa, Specialized convolutional neural network models for echolocation-based perception, IEEE Access, 13, 156811-158623 (2025) [Link] 

• G. U. Patil, H. S. Kwon, B. I. Epureanu, B. I. Popa, Synthetically-trained neural networks for shape classification from measured acoustic scattering, Journal of Sound and Vibration, 618, 119229 (2025) [Link] 

  • • Featured in Interesting Engineering [Coverage], The National Interest [Coverage], The Cool Down [Coverage], NextGenDefense [Coverage], Visegrad Post [Coverage], iHLS [Coverage], The Debrief [Coverage], and FutureWarTech [Coverage] 

• G. U. Patil, A. Fantetti, K. H. Matlack, Shear wave-induced friction at periodic interfaces for programmable mechanical responses. Journal of Applied Mechanics, 90(9), 091002 (2023) [Link]

• G. U. Patil, Songyuan Cui, K. H. Matlack, Leveraging nonlinear wave mixing in rough contacts-based phononic diodes for tunable nonreciprocal waves. Extreme Mechanics Letters, 55, 101821 (2022) [Link]

• G. U. Patil, K. H. Matlack, Strongly nonlinear wave dynamics of continuum phononic materials with periodic rough contacts. Physical Review E, 105(2), 024201 (2022) [Link]

  • • Editor’s pick for “Physical Review E Spotlights” on “Solitary Wave Dynamics in Strongly Nonlinear Phononic Materials” 

• G. U. Patil, K. H. Matlack, Review of exploiting nonlinearity in phononic materials to enable nonlinear wave responses. Acta Mechanica, 233(1), 1-46 (2022) [Link]

• G. U. Patil, K. H. Matlack, Wave self-interactions in continuum phononic materials with periodic contact nonlinearity. Wave Motion, 105, 102763 (2021) [Link]

• O. Babatola*, G. U. Patil*, D. Hsieh*, K. H. Matlack, S. Sinha, Independently tunable thermal conductance and phononic bandgaps of 3D lattice materials. Advanced Engineering Materials, 22(2), 1901004 (2020) (* equal contribution) [Link] 

• G. U. Patil, A.S. Shedge, K. H. Matlack, 3D auxetic lattice materials for anomalous elastic wave polarization. Applied Physics Letters, 115(9), 091902 (2019) [Link]

• G. U. Patil, K. H. Matlack, Effective property evaluation and analysis of three-dimensional periodic lattices and composites through Bloch-wave homogenization. The Journal of the Acoustical Society of America, 145(3), 1259–1269 (2019) [Link]

The presenter is denoted by an asterisk *

• G. U. Patil*, From engineered control to bio-inspired interpretation of mechanical waves, Department of Applied Mechanics and Biomedical Engineering, Indian Institute of Technology Madras, Chennai (Dec 2025) [Departmental Seminar]

• G. U. Patil*, H. S. Kwon, B. I. Epureanu, B. I. Popa, Simulation to reality learning for geometry inference of finite acoustic scatterers, Sixth Joint Meeting of the Acoustical Society of America and the Acoustical Society of Japan, Honolulu, Hawaii, USA (Dec 2025) [Invited Technical Talk]

• G. U. Patil*, B. I. Popa, Transforming perception with AI and biosonar, U-M Annual Data Science & AI Summit 2025, Ann Arbor, Michigan, USA (Nov 2025) [Research Vision Talk] 

• G. U. Patil*, Artificial Echolocation: Neural models for object perception from wave scattering, Department of Mechanical Engineering, Indian Institute of Science, Bangalore (Sept 2025) [Invited Departmental Seminar] [Link]

• G. U. Patil*, Biosonar-inspired neural framework for object perception from ultrasound, Department of Aerospace Engineering, Indian Institute of Technology Bombay, Mumbai (Sept 2025) [Invited Departmental Seminar]

• G. U. Patil*, Echolocation-inspired neural framework for wave-based perception, Department of Mechanical Engineering, Indian Institute of Technology Bombay, Mumbai (Sept 2025) [Invited Departmental Seminar]

• H. S. Kwon*, G. U. Patil, B. I. Epureanu, B. I. Popa, Modular convolutional neural networks for adaptable ultrasound sensing and echo analysis, The Journal of Acoustical Society of America, 157 (4), A84 (2025) [Link] [ASA joint with the 25th International Congress on Acoustics, New Orleans, Louisiana, USA]

• G. U. Patil*, H. S. Kwon, B. I. Epureanu, B. I. Popa, Artificial Echolocation: Leveraging Neural Networks for Ultrasound-based Shape Recognition, International Mechanical Engineering Congress & Exposition, Portland, Oregon, USA (Nov 2024)

• G. U. Patil*, Nonlinear wave dynamics of continuum phononic materials with periodic rough contacts, The NASEM’s USNC/TAM 5MT (Sept 2024) [Finalist Presentation]

  • • Awarded  1st place prize in the 5-minute Virtual Thesis in Mechanics Competition 

• G. U. Patil*, H. Harley, A. K. Shorter, B. I. Popa, Estimating the soundscape around echolocating dolphins from sparse hydrophone measurements, MURI Program Review, Washington DC, USA (Jul 2024) [Poster]

• G. U. Patil*, H. S. Kwon, P. Mohan, P. Jayakumar, B. I. Epureanu, B. I. Popa, Ultrasound perception in physical environments from synthetically trained neural networks, Automotive Research Center Annual Program Review, Ann Arbor, USA (Jun 2024) [Technical Talk]

•  G. U. Patil*, H. S. Kwon, P. Mohan, P. Jayakumar, B. I. Epureanu, B. I. Popa, Ultrasound perception in physical environments from synthetically trained neural networks, Automotive Research Center Annual Program Review, Ann Arbor, USA (Jun 2024) [Poster]

• G. U. Patil*, Physics of acoustic waves: from metamaterials to ultrasound perception, Veermata Jijabai Technological Institute, Mumbai, India (Apr 2024) [Guest Lecture] 

• G. U. Patil, K. H. Matlack*, Nonlinear wave propagation through phononic materials with rough contact interfaces, Phononics 2023: 6th International Conference on Phononic Crystals/Metamaterials/Metasurfaces, Phonon Transport, and Topological Phononics, Manchester, UK (Jun 2023) 

• Md Kamruzzaman*, G. U. Patil, K. H. Matlack, Contact stiffness evaluation and wave response study of engineered contact-based nonlinear phononic material, Phononics 2023: 6th International Conference on Phononic Crystals/Metamaterials/Metasurfaces, Phonon Transport, and Topological Phononics, Manchester, UK (Jun 2023) [Poster] 

• G. U. Patil*, A. Fantetti, K.H. Matlack, Frictional instability: A nonlinear mechanism to control shear wave responses in rough contact-based metamaterials, The Journal of the Acoustical Society of America, 152 (4), A38 (2022) [Link] [183rd ASA Meeting, Nashville, Tennessee, USA]

• Md Kamruzzaman*, G. U. Patil, K. H. Matlack, Measurement of contact stiffness of engineered surface for enriched and novel nonlinear wave propagation in phononic material, International Mechanical Engineering Congress & Exposition, Columbus, Ohio, USA (Oct-Nov 2022) [Poster]

• G. U. Patil*, K.H. Matlack,  Nonlinear Wave Disintegration in Phononic Material with Weakly Compressed Rough Contacts, 10th European Nonlinear Dynamics Conference, Lyon, France, (July 2022) [Link]

  • • Received Schaller Travel Award and Conference Presentation Award, Graduate College, UIUC 

• K.H. Matlack*, G. U. Patil, Nonlinear wave propagation from periodic arrangements of rough contact interfaces. 19th U.S. National Congress on Theoretical and Applied Mechanics, Austin, Texas, USA, (June 2022) 

• G. U. Patil*, K.H. Matlack, Experimental study of nonlinear waves in phononic materials with rough contacts, The Journal of the Acoustical Society of America, 151 (4), A41 (2022) [Link] [182nd ASA Meeting, Denver, Colorado, USA]

  • • 1st Place Best Student Paper Award in Structural Acoustics and Vibration, Acoustical Society of America 

• G. U. Patil*, K.H. Matlack, Emergence of stegotons in phononic materials with strongly nonlinear rough contacts. The Journal of the Acoustical Society of America, 150 (4), A147 (2021) [Link] [181st ASA Meeting, Seattle, Washington, USA]

• G. U. Patil*, O. Babatola, D. Hsieh, S. Sinha, K.H. Matlack, Three-dimensional periodic multifunctional lattice materials for simultaneous vibration isolation and heat conduction. The Journal of the Acoustical Society of America, 148 (4), 2578 (2020) [Link] [179th ASA Meeting, Acoustics Virtually Everywhere]

  • • 1st Place Best Student Paper Award in Structural Acoustics and Vibration, Acoustical Society of America

• G. U. Patil*, K.H. Matlack, Tunable bandgaps and second harmonic generation of a one-dimensional nonlinear phononic material with periodic rough interfaces. The Virtual Meeting 2020 of the Society of Engineering Sciences (2020)

• G. U. Patil*, K.H. Matlack, Anomalous wave polarization through a 3D periodic auxetic lattice. The Journal of the Acoustical Society of America, 145 (3), 1666 (2019) [Link] [177th ASA Meeting, Louisville, Kentucky, USA]

• I. Arretche, G. U. Patil, K.H. Matlack*, Effects of geometry and mass distribution in 3D printed metastructures for vibration mitigation. The Journal of the Acoustical Society of America, 145 (3), 1760 (2019) [Link] [177th ASA Meeting, Louisville, Kentucky, USA]

• G. U. Patil, Nonlinear wave dynamics of continuum phononic materials with periodic rough contacts. Ph.D. Mechanical Engineering (2023). [Link]

• G. U. Patil, Influence of geometric parameters on 3D periodic lattice effective properties. M.S. Mechanical Engineering (2019). [Link]