김경종
74 lines
3.4 KiB
Markdown
74 lines
3.4 KiB
Markdown
---
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type: concept
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title: "Abaqus Material Library and Data Definition"
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complexity: intermediate
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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-000093
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aliases:
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- Abaqus material data definition
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- Abaqus material library
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- material behavior combinations
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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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- materials
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- constitutive-modeling
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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 Input File Syntax]]"
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- "[[Abaqus Spatial Model Definition]]"
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- "[[Abaqus Constitutive Integration]]"
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- "[[Abaqus User-Defined Material Behavior]]"
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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_005.md"
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- "AbaqusAnalysisUserGuide3_004.md"
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- "AbaqusAnalysisUserGuide3_019.md"
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- "AbaqusAnalysisUserGuide3_042.md"
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md_indices:
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- 5
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- 4
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- 19
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- 42
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match: "heuristic-heading-keyword"
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confidence: high
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---
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# Abaqus Material Library and Data Definition
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## Definition
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Abaqus material library and data definition is the keyword-level system for naming materials, combining compatible material behaviors, supplying property data, and attaching those materials to model regions through section definitions.
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## How It Works
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A material definition starts with a named `*MATERIAL` block and then contains one or more material behavior options. A simple linear static stress analysis may need only elasticity, while nonlinear, thermal, coupled-field, or damage analyses may combine elasticity, density, plasticity, damping, expansion, conductivity, damage, and other behavior blocks.
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Material data can depend on temperature and independent field variables. In Abaqus/Standard some behavior can also depend on solution variables. For anisotropic behavior, the material may require a local coordinate system; for spatially varying behavior in homogeneous solid continuum elements, some properties can be supplied through distributions.
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The source emphasizes data discipline: tabular material data must be ordered by increasing independent variable values, enough points must be supplied to represent strongly nonlinear behavior, and finite-strain material data should use true stress and logarithmic strain when required by the model.
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## Why It Matters
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The material library is where a finite element model becomes physically specific. The same mesh and procedure can represent a metal forming operation, elastomer seal, concrete structure, porous soil, acoustic medium, or electromagnetic material depending on the material blocks attached to the model.
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## Connections
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- [[Abaqus Input File Syntax]] supplies the keyword and data-line structure used by material definitions.
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- [[Abaqus Spatial Model Definition]] assigns materials to element regions through sections.
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- [[Abaqus Constitutive Integration]] is the integration-point process that consumes material definitions during an analysis.
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- [[Abaqus User-Defined Material Behavior]] extends the material library when built-in behavior is insufficient.
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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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