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2026-06-01 09:36:33 +09:00
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wiki/concepts/MITC4 Shell Element.md
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@@ -8,7 +8,7 @@ aliases:
- Mixed Interpolation of Tensorial Components shell element
- four-node quadrilateral MITC shell
created: 2026-05-28
updated: 2026-05-28
updated: 2026-06-01
address: c-000023
tags:
- concept
@@ -32,11 +32,14 @@ related:
- "[[Assumed Transverse Shear Strain Interpolation]]"
- "[[Scordelis-Lo Shell Benchmark]]"
- "[[OOFEM]]"
- "[[Abaqus Structural Element Families]]"
- "[[Abaqus Beam and Shell Section Definitions]]"
sources:
- "[[On-the-Finite-Element-Analysis-of-Shell-Structures]]"
- "[[Four-Node-Quadrilateral-Shell-Element-MITC4]]"
- "[[MITC Study Notes]]"
- "[[Dynamic-Buckling-Analysis-of-Shell-Structures-using-Finite-Element-Method]]"
- "[[Abaqus-Analysis-User-s-Guide-Volume-IV|Abaqus Analysis User's Guide Volume IV]]"
---
# MITC4 Shell Element
@@ -55,6 +58,8 @@ The dynamic buckling thesis uses MITC4 as the shell element for a full analysis
[[On-the-Finite-Element-Analysis-of-Shell-Structures]] places MITC in the broader shell FE reliability problem: mixed interpolation should reduce [[Shell Locking Phenomenon]] in bending and mixed-dominated shells while preserving consistency and ellipticity in membrane-dominated shells.
[[Abaqus-Analysis-User-s-Guide-Volume-IV|Abaqus Analysis User's Guide Volume IV]] provides the production shell-library context around this research thread: conventional shells, continuum shells, axisymmetric shells, shell section definitions, reduced integration, and hourglass/drill stiffness controls are the practical choices analysts see when selecting elements such as `S4R` or `SC8R`.
## Why It Matters
Low-order shell elements are computationally attractive, but thin-shell bending exposes shear locking if the element cannot represent near-zero transverse shear strain. MITC4 preserves the economy of a four-node quadrilateral while making the element usable across thick and thin shells.
@@ -73,3 +78,4 @@ The paper reports patch-test verification for pure bending, pure shear, pure twi
- [[MITC Study Notes]]
- [[Dynamic-Buckling-Analysis-of-Shell-Structures-using-Finite-Element-Method]]
- [[On-the-Finite-Element-Analysis-of-Shell-Structures]]
- [[Abaqus-Analysis-User-s-Guide-Volume-IV|Abaqus Analysis User's Guide Volume IV]]