Hongye Liu is an Associate Professor in the Department of Instrument Science and Technology at the University of Shanghai for Science and Technology, China, and a Postdoctoral Research Fellow in the Acoustics and Functional Materials Laboratory at the Department of Mechanical Engineering, Virginia Tech, USA. He earned his Ph.D. in Mechanical Engineering from Beijing University of Technology in 2016, including a joint program at Georgia Institute of Technology funded by the China Scholarship Council from 2013 to 2015. Dr. Liu has led or participated in over eight NSFC-funded projects, including major research plans, key projects, and general grants. He has authored 40+ peer-reviewed publications, holds several invention patents, and, according to Google Scholar, his work has been cited 350+ times with an h-index of 11. A Senior Member of the Chinese Mechanical Engineering Society, he serves on multiple technical committees and reviews for more than ten high-impact international journals, including Mechanical Systems and Signal Processing, Engineering Structures, Nano Energy, and Ultrasonics. His research focuses on nondestructive testing and structural health monitoring of composite materials, optical–acoustic holography, acoustic field manipulation and functional materials, physics-based modeling, and machine learning–assisted signal processing. His interdisciplinary expertise and global collaborations position him to lead a high-impact Special Issue on Polymer Composites.