2024
DOI: 10.1002/nag.3916
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A Dynamic Three‐Field Finite Element Model for Wave Propagation in Linear Elastic Porous Media

Bruna Campos,
Robert Gracie

Abstract: A three‐field finite element (FE) model for dynamic porous media considering the de la Cruz and Spanos (dCS) theory is presented. Due to fluid viscous dissipation terms, wave propagation in the dCS theory yields an additional rotational wave compared to Biot (BT) theory. In addition, introducing porosity as a dynamic variable in the dCS model allows solid‐fluid nonreciprocal interactions. Due to the volume‐averaging technique, the dCS model further accounts for a macroscopic shear modulus and adds a new macros… Show more

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