Publications by authors named "Washington DeLima"
Article Synopsis
- - The study focuses on advancing the dynamic responses of micro-architected acoustic metamaterials, which have been underexplored compared to their quasi-static properties, particularly at high-frequency ranges.
- - Researchers propose an innovative design framework using microspheres to adjust the mechanical characteristics of 3D metamaterials, achieving a significant increase in stiffness and wave propagation speeds without changing material density.
- - This framework allows for easier design and production of metamaterials, opening up new possibilities for applications in medical ultrasound and analog computing through both experimental and numerical methods.
Mechanical metamaterials at the microscale exhibit exotic static properties owing to their engineered building blocks, but their dynamic properties have remained substantially less explored. Their design principles can target frequency-dependent properties and resilience under high-strain-rate deformation, making them versatile materials for applications in lightweight impact resistance, acoustic waveguiding or vibration damping. However, accessing dynamic properties at small scales has remained a challenge owing to low-throughput and destructive characterization or lack of existing testing protocols.
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