김경종
53 lines
2.6 KiB
Markdown
53 lines
2.6 KiB
Markdown
---
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type: concept
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title: "Midas FEA Element Library"
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created: 2026-06-02
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updated: 2026-06-02
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address: c-000146
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aliases:
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- MIDAS FEA element library
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- midas FEA structural elements
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tags:
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- concept
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- finite-element-method
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- elements
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- midas-fea
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status: current
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related:
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- "[[Midas-FEA-Analysis-Manual|Midas FEA Analysis Manual]]"
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- "[[midas FEA]]"
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- "[[Finite Element Method]]"
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- "[[Isoparametric Finite Elements]]"
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- "[[Abaqus Element Library]]"
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- "[[Abaqus Structural Element Families]]"
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- "[[Abaqus Continuum Element Families]]"
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sources:
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- "[[Midas-FEA-Analysis-Manual|Midas FEA Analysis Manual]]"
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---
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# Midas FEA Element Library
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## Definition
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Midas FEA element library is the set of structural and field elements described in the [[Midas-FEA-Analysis-Manual|Midas FEA Analysis Manual]], including truss, beam, plane stress, plate, plane strain, axisymmetric, solid, spring, rigid link, reinforcement, interface, contact, heat-transfer, and CFD elements.
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## How It Works
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The structural element chapters organize each element around finite element kinematics, degrees of freedom, coordinate systems, stiffness contribution, and result recovery. The same product library also includes embedded reinforcement, interface elements, geometric nonlinear variants, and heat-transfer or fluid elements used by specialized analyses.
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The manual's element coverage sits between textbook element derivations and broad commercial element catalogs. It is not just a list of element names; it shows how production analysis procedures depend on element-specific stiffness, mass, geometric stiffness, body force, pressure load, contact, and result output routines.
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## Solver Development Notes
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- Start a custom solver with a small structural subset before mirroring the full production library.
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- Treat element routines as contracts: nodal DOFs, shape functions, Jacobian mapping, material calls, element matrices, load vectors, and output recovery.
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- Keep geometric stiffness and nonlinear strain measures separate from the linear stiffness path so buckling and nonlinear procedures can reuse them explicitly.
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- Use [[Abaqus Element Library]] as a comparative reference for naming, family selection, reduced integration, hybrid behavior, sections, and user elements.
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## Connections
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- [[Isoparametric Finite Elements]] provides the common interpolation and mapping framework.
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- [[Abaqus Element Selection and Formulation]] gives a parallel production selection workflow.
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- [[Midas FEA Embedded Reinforcement Modeling]] and [[Midas FEA Interface Elements and Nonlinearities]] are specialized element-library extensions.
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