김경종
59 lines
2.8 KiB
Markdown
59 lines
2.8 KiB
Markdown
---
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type: concept
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title: "Abaqus Structural Element Families"
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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-000107
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aliases:
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- Abaqus structural elements
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- Abaqus shell beam membrane truss elements
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- Abaqus shell elements
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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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- structural-elements
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- shell-elements
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status: current
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related:
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- "[[Abaqus-Analysis-User-s-Guide-Volume-IV|Abaqus Analysis User's Guide Volume IV]]"
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- "[[Abaqus Element Selection and Formulation]]"
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- "[[Abaqus Beam and Shell Section Definitions]]"
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- "[[Beam and Frame Finite Elements]]"
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- "[[Bar and Truss Finite Elements]]"
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- "[[MITC4 Shell Element]]"
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- "[[Shell Locking Phenomenon]]"
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sources:
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- "[[Abaqus-Analysis-User-s-Guide-Volume-IV|Abaqus Analysis User's Guide Volume IV]]"
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---
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# Abaqus Structural Element Families
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## Definition
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Abaqus structural element families model lower-dimensional structural idealizations such as membranes, trusses, beams, frames, elbows, conventional shells, continuum shells, and axisymmetric shells.
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## How They Work
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Structural elements reduce dimensionality by introducing kinematic assumptions and section behavior. Trusses carry axial force. Beams and frames add bending, shear, torsion, rotations, and cross-section behavior. Membranes carry in-plane behavior without bending stiffness. Shells represent surface-like structures with membrane, bending, and transverse shear effects.
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The shell library splits into conventional shell elements, continuum shell elements, and axisymmetric shell elements. Conventional shells use midsurface and thickness-section definitions, while continuum shells are three-dimensional in topology but shell-like through their section behavior. This makes element choice tightly coupled to section definition, thickness integration, and expected locking behavior.
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## Why It Matters
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Structural elements are efficient only when their assumptions match the physical structure. A beam or shell can be much cheaper than a solid model, but the section definition, orientation, transverse shear treatment, and connection to other element families become part of the model.
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## Connections
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- [[Abaqus Beam and Shell Section Definitions]] defines the section data that makes structural elements meaningful.
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- [[Beam and Frame Finite Elements]] and [[Bar and Truss Finite Elements]] provide the textbook structural-member background.
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- [[MITC4 Shell Element]] and [[Shell Locking Phenomenon]] explain why low-order shell interpolation needs careful strain treatment.
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- [[Abaqus Element Selection and Formulation]] describes how product, family, and formulation variants are encoded in element names.
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## Sources
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- [[Abaqus-Analysis-User-s-Guide-Volume-IV|Abaqus Analysis User's Guide Volume IV]]
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