The Terzaghi and Biot solutions differ most when it comes to predicting the horizontal strain at the edge of the bedrock step. The Biot poroelasticity analysis predicts horizontal strain; the Terzaghi compaction analysis does not.

Biot Poroelasticity Application ID: 483 The Poroelasticity interface couples Darcy's law and solid mechanics to assess deformation of porous media that results from fluid withdrawals.

In his seminal work, Biot extended the classical theory of linear elasticity to porous media saturated with fluids (Ref. 1, Ref. 2, and Ref. 3). In Biot’s theory, the bulk moduli and compressibilities are independent of the wave frequency, …

The Biot–Willis coefficient, α B, relates the volume of fluid expelled (or sucked into) a porous material element due to the volumetric change of the same element. This coefficient can be measured experimentally as the change in mean pressure due to changes in the pore pressure under constant deformation (constant volumetric strain).

Jan 23, 2025 · But in principle, you could still set it up in a Comsol Multiphysics environment, and then (in the case of a 1D curve) define an appropriate post-processing line-integral operation to compute the field contribution explicitly using the Biot Savart law.

“多孔弹性”接口将达西定律和固体力学相耦合，用于评估流体抽取引起的多孔介质变形。 此模型基于“Terzaghi 固结”示例构建，将“Terzaghi 固结”和“Biot 多孔弹性”分析的结果进行了比较，结果表明，二者与已发表的分析结果非常吻合。

Learn how to include viscous and thermal losses when analyzing a multilayered porous material. Includes tutorial guide and MPH-file for the example model.

Biot Poroelasticity Application ID: 483 The Poroelasticity interface couples Darcy's law and solid mechanics to assess deformation of porous media that results from fluid withdrawals.

COMSOL Multiphysics solves Equation 2 using the predefined Poroelastic Material interface. where E is Young’s modulus (Pa) and is Poisson’s ratio of the drained porous matrix.

The Terzaghi and Biot solutions differ most when it comes to predicting the horizontal strain at the edge of the bedrock step. The Biot poroelasticity analysis predicts horizontal strain; the Terzaghi compaction analysis does not.