김경종
80 lines
3.5 KiB
Markdown
80 lines
3.5 KiB
Markdown
---
|
|
type: concept
|
|
title: "Abaqus Continuum Element Families"
|
|
complexity: advanced
|
|
domain: computational-mechanics
|
|
created: 2026-06-01
|
|
updated: 2026-06-01
|
|
address: c-000106
|
|
aliases:
|
|
- Abaqus continuum elements
|
|
- Abaqus solid elements
|
|
- Abaqus fluid continuum elements
|
|
tags:
|
|
- concept
|
|
- finite-element-method
|
|
- abaqus
|
|
- continuum-elements
|
|
- solid-elements
|
|
status: current
|
|
related:
|
|
- "[[Abaqus-Analysis-User-s-Guide-Volume-IV|Abaqus Analysis User's Guide Volume IV]]"
|
|
- "[[Abaqus Element Selection and Formulation]]"
|
|
- "[[Isoparametric Linear Solid Elements]]"
|
|
- "[[Isoparametric Finite Elements]]"
|
|
- "[[Reduced Integration and Hourglass Control]]"
|
|
- "[[Hybrid Incompressible Elements]]"
|
|
- "[[Plane Stress and Plane Strain Elements]]"
|
|
- "[[Axisymmetric Finite Elements]]"
|
|
sources:
|
|
- "[[Abaqus-Analysis-User-s-Guide-Volume-IV|Abaqus Analysis User's Guide Volume IV]]"
|
|
source_refs:
|
|
- source: "[[Abaqus-Analysis-User-s-Guide-Volume-IV|Abaqus Analysis User's Guide Volume IV]]"
|
|
raw_path: ".raw/AbaqusAnalysisUserGuide4/"
|
|
raw_files:
|
|
- "AbaqusAnalysisUserGuide4_023.md"
|
|
- "AbaqusAnalysisUserGuide4_003.md"
|
|
- "AbaqusAnalysisUserGuide4_006.md"
|
|
- "AbaqusAnalysisUserGuide4_021.md"
|
|
md_indices:
|
|
- 23
|
|
- 3
|
|
- 6
|
|
- 21
|
|
match: "heuristic-heading-keyword"
|
|
confidence: high
|
|
---
|
|
|
|
# Abaqus Continuum Element Families
|
|
|
|
## Definition
|
|
|
|
Abaqus continuum element families model volume or area continua with translational and field degrees of freedom rather than structural-section degrees of freedom.
|
|
|
|
## How They Work
|
|
|
|
The general-purpose continuum library includes one-dimensional links, two-dimensional plane stress and plane strain solids, three-dimensional solids, cylindrical solids, axisymmetric solids, and axisymmetric elements that allow nonlinear asymmetric deformation. Common stress/displacement examples include tetrahedra, wedges, pyramids, and bricks such as `C3D4`, `C3D6`, `C3D8`, `C3D8R`, `C3D8I`, and `C3D10`.
|
|
|
|
Many continuum families have variants for coupled fields and special formulations. Suffixes identify thermally coupled, pore-pressure, piezoelectric, hybrid, reduced-integration, incompatible-mode, and improved stress-visualization behavior. The same geometric topology can therefore support different analysis physics.
|
|
|
|
The volume also covers fluid continuum elements for Abaqus/CFD, infinite elements for unbounded domains, acoustic elements, and warping elements for beam-section calculations.
|
|
|
|
## Practical Selection Notes
|
|
|
|
- First-order fully integrated solids can lock in bending-dominated or incompressible limits.
|
|
- First-order reduced-integration solids can be efficient but require hourglass control and adequate mesh refinement.
|
|
- Hybrid elements are important for incompressible or nearly incompressible material behavior.
|
|
- Modified tetrahedral elements are often preferable to constant-stress tetrahedra when tetrahedral meshing is unavoidable.
|
|
|
|
## Connections
|
|
|
|
- [[Isoparametric Linear Solid Elements]] supplies the basic 3D continuum interpolation pattern.
|
|
- [[Plane Stress and Plane Strain Elements]] and [[Axisymmetric Finite Elements]] are reduced-dimensional continuum abstractions.
|
|
- [[Reduced Integration and Hourglass Control]] and [[Hybrid Incompressible Elements]] describe the main formulation variants.
|
|
- [[Abaqus Fluid Acoustic Eulerian and Particle Elements]] covers continuum-adjacent acoustic, fluid, and particle families.
|
|
|
|
## Sources
|
|
|
|
- [[Abaqus-Analysis-User-s-Guide-Volume-IV|Abaqus Analysis User's Guide Volume IV]]
|
|
|