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May 14, 2026The Journal of the Acoustical Society of America

Anisotropic acoustic characterization of TPMS architected metamaterials via impedance-tube and multiscale modeling

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Authors

ACAnthony CilettiYXYutong XueJBJ. S. Bolton

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Overview

Randomized trial characterizes acoustic properties in engineered TPMS metamaterials, suggesting enhanced design strategies.

Key Points

  • This research aims to determine the acoustic properties of TPMS architected metamaterials, focusing on their anisotropic behavior.
  • Used normal-incidence impedance-tube measurements to assess effective density and bulk modulus of TPMS samples.
  • Employed a hybrid multiscale approach in COMSOL for transport parameter extraction.
  • Conducted comparisons of measured apparent density and scattering coefficients with predictions from effective density tensor.
  • Effective density tensor analysis indicates significant anisotropic properties based on directional material orientation.
  • Measurements show improvements in acoustic absorption linked to tailored design strategies for TPMS absorbers.
  • Comparisons with numerical predictions validate the methodology for assessing anisotropic behavior.

Cite This Study

Ciletti et al. (2025) studied this question.

synapsesocial.com/papers/6a056838a550a87e60a2096ehttps://doi.org/10.1121/10.0040812
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