김경종
74 lines
3.0 KiB
Markdown
74 lines
3.0 KiB
Markdown
---
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type: concept
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title: "Abaqus Porous Media and Pore Fluid Materials"
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complexity: advanced
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domain: computational-mechanics
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created: 2026-06-01
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updated: 2026-06-01
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address: c-000102
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aliases:
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- Abaqus pore fluid materials
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- Abaqus permeability
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- Abaqus sorption
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- Abaqus moisture swelling
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- Abaqus porous media
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tags:
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- concept
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- finite-element-method
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- abaqus
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- porous-media
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- pore-fluid
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- materials
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status: current
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related:
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- "[[Abaqus-Analysis-User-s-Guide-Volume-III|Abaqus Analysis User's Guide Volume III]]"
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- "[[Abaqus Geomaterial and Concrete Plasticity]]"
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- "[[Abaqus Multiphysics Coupling and Co-simulation]]"
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- "[[Finite Element Heat Transfer and Field Problems]]"
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- "[[Mixed Finite Element Formulations]]"
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sources:
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- "[[Abaqus-Analysis-User-s-Guide-Volume-III|Abaqus Analysis User's Guide Volume III]]"
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source_refs:
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- source: "[[Abaqus-Analysis-User-s-Guide-Volume-III|Abaqus Analysis User's Guide Volume III]]"
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raw_path: ".raw/AbaqusAnalysisUserGuide3/"
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raw_files:
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- "AbaqusAnalysisUserGuide3_068.md"
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- "AbaqusAnalysisUserGuide3_069.md"
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- "AbaqusAnalysisUserGuide3_070.md"
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- "AbaqusAnalysisUserGuide3_003.md"
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md_indices:
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- 68
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- 69
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- 70
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- 3
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match: "heuristic-heading-keyword"
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confidence: high
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---
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# Abaqus Porous Media and Pore Fluid Materials
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## Definition
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Abaqus porous media and pore fluid material definitions describe flow, compressibility, saturation, sorption, and swelling behavior in fluid-filled porous materials.
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## How It Works
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The guide lists pore-fluid material properties for coupled pore fluid diffusion and stress analysis. Permeability defines the relation between flow rate and hydraulic or piezometric head gradients. In Abaqus/Standard it can be isotropic, orthotropic, anisotropic, velocity-dependent, and saturation-dependent; in Abaqus/CFD it can also use relations such as Carman-Kozeny and inertial drag.
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Porous bulk moduli define the compressibility of solid grains and the permeating fluid. Sorption defines absorption and exsorption under partially saturated flow. Swelling gel and moisture swelling capture saturation-driven volumetric swelling behavior, including anisotropic swelling ratios and consistency requirements for initial saturation and pore pressure.
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## Why It Matters
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Porous media analysis couples mechanical deformation, pore pressure, saturation, and flow. The material data are not just constitutive constants; they control the coupled storage, transport, and deformation response of soils, rocks, gels, and other saturated or partially saturated media.
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## Connections
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- [[Abaqus Geomaterial and Concrete Plasticity]] supplies adjacent pressure-dependent solid skeleton models.
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- [[Mixed Finite Element Formulations]] is relevant because pore pressure acts as an additional field.
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- [[Abaqus Multiphysics Coupling and Co-simulation]] provides the broader coupled-analysis workflow.
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## Sources
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- [[Abaqus-Analysis-User-s-Guide-Volume-III|Abaqus Analysis User's Guide Volume III]]
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