75 lines
2.9 KiB
Markdown
75 lines
2.9 KiB
Markdown
---
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type: concept
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title: "Abaqus Loads and Predefined Fields"
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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-000119
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aliases:
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- Abaqus loads
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- Abaqus predefined fields
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- Abaqus pretension loads
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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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- loads
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- predefined-fields
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status: current
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related:
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- "[[Abaqus-Analysis-User-s-Guide-Volume-V|Abaqus Analysis User's Guide Volume V]]"
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- "[[Abaqus Prescribed Conditions and Amplitudes]]"
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- "[[Finite Element Load Vector Assembly]]"
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- "[[Abaqus Surface and Assembly Modeling]]"
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- "[[Abaqus Multiphysics Coupling and Co-simulation]]"
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- "[[Abaqus Connector Elements and Behaviors]]"
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sources:
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- "[[Abaqus-Analysis-User-s-Guide-Volume-V|Abaqus Analysis User's Guide Volume V]]"
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source_refs:
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- source: "[[Abaqus-Analysis-User-s-Guide-Volume-V|Abaqus Analysis User's Guide Volume V]]"
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raw_path: ".raw/AbaqusAnalysisUserGuide5/"
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raw_files:
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- "AbaqusAnalysisUserGuide5_023.md"
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- "AbaqusAnalysisUserGuide5_004.md"
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- "AbaqusAnalysisUserGuide5_024.md"
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- "AbaqusAnalysisUserGuide5_003.md"
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md_indices:
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- 23
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- 4
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- 24
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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 Loads and Predefined Fields
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## Definition
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Abaqus loads and predefined fields are prescribed external actions and non-solution-dependent spatial fields applied to an analysis model.
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## How They Work
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The load library includes concentrated loads, distributed loads, thermal loads, electromagnetic loads, acoustic and shock loads, pore-fluid flow, substructure loads, added mass, base motion, current density, electric charge, film conditions, fluxes, pressure, and other procedure-dependent loading types.
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Predefined fields supply spatially and temporally varying quantities that are not solved as primary unknowns in the current procedure. Temperature is the most common predefined field, especially for sequential thermal-stress workflows.
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Prescribed assembly loads include pretension sections for bolts or other fasteners in Abaqus/Standard. Connector elements can also receive prescribed loads or motions to represent actuated mechanisms.
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## Why It Matters
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Loads and fields are the right-hand side and environment of the finite element problem. They must be compatible with the active procedure, degrees of freedom, element families, and intended time history.
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## Connections
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- [[Finite Element Load Vector Assembly]] gives the finite element interpretation of concentrated and distributed loading.
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- [[Abaqus Surface and Assembly Modeling]] supplies surfaces, assemblies, and pretension-related regions.
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- [[Abaqus Multiphysics Coupling and Co-simulation]] uses predefined fields for sequentially coupled analyses.
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- [[Abaqus Connector Elements and Behaviors]] covers connector loads and motions.
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## Sources
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- [[Abaqus-Analysis-User-s-Guide-Volume-V|Abaqus Analysis User's Guide Volume V]]
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