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Predictive wave engineering in polymer phononic materials via viscoelastic-geometric coupling.

Sidharth Beniwal1, Ranjita K Bose1, Anastasiia O Krushynska1

  • 1Engineering and Technology Institute Groningen (ENTEG), Faculty of Science and Engineering, University of Groningen, Groningen, The Netherlands. s.beniwal@rug.nl.

Materials Horizons
|June 16, 2026
PubMed
Summary

This study presents a validated framework for predicting wave dynamics in additively manufactured phononic materials. Integrating experimental material data with design variations improves accuracy for polymer phononic devices.

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Area of Science:

  • Materials Science
  • Acoustics
  • Mechanical Engineering

Background:

  • Additive manufacturing enables complex polymer phononic materials for wave control.
  • Inaccurate material characterization hinders predictive accuracy and reproducibility.

Purpose of the Study:

  • To establish an experimentally validated framework for predicting wave dynamics in additively manufactured polymer phononic materials.
  • To integrate experimentally characterized viscoelastic properties with design variations for accurate numerical predictions.

Main Methods:

  • Utilized disc-ligament phononic crystal designs analogous to mass-spring systems.
  • Performed finite-element simulations with experimentally measured viscoelastic properties.
  • Examined band gap sensitivity to unit-cell geometry, material distribution, and porosity variations.

Main Results:

  • Achieved close agreement between predicted and measured transmission responses across various geometries and polymer types.
  • Demonstrated the framework's ability to accurately predict wave dynamics.
  • Condensed band diagrams effectively visualized band gap sensitivity.

Conclusions:

  • The developed framework enables accurate prediction of wave dynamics in additively manufactured polymer phononic materials.
  • Experimental validation confirms the framework's reliability for phononic device design.
  • This approach enhances the design and development of advanced wave-control applications.