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Acoustical Properties Of Anisotropic Spinodoid Structures, Yutong Xue, Brittany Wojciechowski, Bhisham Sharma, J Stuart Bolton
Acoustical Properties Of Anisotropic Spinodoid Structures, Yutong Xue, Brittany Wojciechowski, Bhisham Sharma, J Stuart Bolton
Publications of the Ray W. Herrick Laboratories
Spinodoid structures, also called spinodoid metamaterials, are non-periodic cellular structures that mimic the spinodal topologies that are observed during diffusion-driven phase separation processes. Spinodoid structures are computationally efficient to model and they can be fabricated using additive techniques; as a result, they offer an attractive way to design multifunctional structures that can simultaneously provide mechanical stiffness and noise reduction performance. In recent work, the normal incidence sound absorption behavior of four distinct spinodoid topologies was studied: isotropic, cubic, columnar, and lamellar. The isotropic and cubic topologies are essentially isotropic in terms of acoustical behavior, and they can be successfully modeled …
Topological Interactions Of Spiky Particles With A Planar Wall, Elizabeth Andrew
Topological Interactions Of Spiky Particles With A Planar Wall, Elizabeth Andrew
Theses
Synthetic spiky colloids are attractive for different technologies, but quantifying the effect of orientation on the particle-surface interactions is still lacking and hinders the use of spiky colloids in different applications. This thesis tackles one of the main challenges in colloid science and engineering to describe the electrostatic and van der Waals interaction energies of a dilute suspension of spiky anisotropic colloids with a planar wall. The model reported here quantifies the DLVO interactions of a spiky particle with a planar wall, extending the surface element integration method and including the effects of particle position and orientation. The effect of …