This $418,136 Project Grant awarded by the National Science Foundation's (NSF) Engineering program (CFDA 47.041) aims to investigate integrating nonlinear acoustics with advanced wavefront shaping to surpass the diffraction limit in acoustic imaging, therapeutic ultrasound, multizone sound field reproduction, and active noise control. The three-year project at the Pennsylvania State University starting September 1, 2024 will develop numerical models and experimental demonstrations of nonlinear...
This $558,370 federal Project Grant award from the National Science Foundation's Engineering program (CFDA 47.041) supports fundamental research into using mixed energized fields (electrical, magnetic, and ultrasound) to control the microstructure and properties of freeze-cast porous materials. The research will characterize how these fields interact with the freeze casting process and develop a constitutive theory to predict the resulting material properties. The goal is to provide a foundation...
This $400,000 Project Grant awarded by the National Science Foundation (NSF) Engineering program (CFDA 47.041) supports research to systematically understand the dislocation-phonon drag regime in metallic materials across a wide range of strain rates. The research aims to develop a novel, small-scale, high-throughput approach to study the characteristics of dislocation-phonon interactions in metals and alloys at extremely high deformation rates. The integrated experimental-computational...
This $223,010 Project Grant award from the National Science Foundation's (NSF) Division of Civil, Mechanical, and Manufacturing Innovation (CMMI) under the Engineering program (CFDA 47.041) supports the development of a new class of ultralight, manufacturable materials with jointly optimized mechanical and transport properties. The key activities include: Characterizing the benefits of exploiting local uniformity and hyperuniformity in materials design and fabrication, Measuring the mechanical...
The National Science Foundation Division of Civil, Mechanical, and Manufacturing Innovation awarded a $399,662 Project Grant to The Regents of the University of Colorado, doing business as the University of Colorado Office of Contracts and Grants Division, under the Engineering program (CFDA 47.041). The grant will fund research to enable the adaptive steering of acoustic waves through engineered or biological structures, with applications including the control of structure-borne noise,...
This $200,000 Project Grant award from the National Science Foundation's (NSF) Mathematical and Physical Sciences (CFDA 47.049) program supports the development of efficient and accurate algorithms for modeling acoustic and electromagnetic wave propagation in complex domains. The primary goals are to create robust algorithms using high-frequency integral equations, microlocal and numerical analysis, asymptotic methods, and finite element techniques. This work aims to enhance the simulation of...
This $450,000 Project Grant award from the National Science Foundation's (NSF) Engineering program (CFDA 47.041) supports research by the New Jersey Institute of Technology (NJIT) to investigate the elastic properties of fluids confined in nanoporous materials and their impact on wave propagation. The project aims to develop a molecular theory to quantify the effects of fluid confinement on elastic properties like compressibility, and apply this to improve models of wave propagation in...
This National Science Foundation award provides $249,901 in funding to the University of Massachusetts Lowell under the Engineering program (CFDA 47.041) from September 1, 2022 through August 31, 2025. The funding supports fundamental research on consistent treatment of boundaries and interfaces in metamaterials. A multi-disciplinary team will perform theoretical and computational analysis of transition layers and use inverse design principles to create devices that control propagation of...
This $375,000 federal Project Grant awarded by the National Science Foundation (NSF) Engineering program (CFDA 47.041) supports collaborative research at Trustees of Boston University on wave engineering using hierarchical nanostructured dynamical systems. The research aims to advance the understanding of sound wave propagation in tailored two-dimensional mediums composed of a periodic array of nanoscale cavities with single-atom-thick membranes. The project will explore how these nanostructures...
The National Science Foundation (NSF) Directorate for Engineering (CFDA 47.041) awarded a $275,000 Project Grant to The Pennsylvania State University, doing business as Penn State, to develop an environmentally benign replacement for lead-containing piezoelectric transducers. The project aims to fabricate nano-structured silicon devices that can leverage a newly observed phenomenon, space charge induced flexoelectricity, to create high-performance transducers for sensing, actuation, and energy...