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+---
+type: concept
+title: "Abaqus Adaptivity and Mesh Replacement"
+complexity: advanced
+domain: computational-mechanics
+created: 2026-05-29
+updated: 2026-05-29
+address: c-000086
+aliases:
+  - Abaqus ALE adaptive meshing
+  - Abaqus adaptive remeshing
+  - Abaqus mesh-to-mesh solution mapping
+tags:
+  - concept
+  - finite-element-method
+  - abaqus
+  - adaptivity
+  - meshing
+status: current
+related:
+  - "[[Abaqus-Analysis-User-s-Guide-Volume-II|Abaqus Analysis User's Guide Volume II]]"
+  - "[[Finite Element Modeling and Convergence Checks]]"
+  - "[[Abaqus Eulerian and Particle Methods]]"
+  - "[[Abaqus Restart and Results Transfer]]"
+  - "[[Nonlinear Finite Element Analysis]]"
+sources:
+  - "[[Abaqus-Analysis-User-s-Guide-Volume-II|Abaqus Analysis User's Guide Volume II]]"
+---
+
+# Abaqus Adaptivity and Mesh Replacement
+
+## Definition
+
+Abaqus adaptivity and mesh replacement techniques change or smooth the mesh to improve result quality, control element distortion, or continue an analysis after remeshing.
+
+## How It Works
+
+The guide separates three adaptivity techniques. ALE adaptive meshing controls mesh distortion by smoothing a single mesh during a step. Adaptive remeshing improves accuracy by generating multiple meshes outside the analysis step sequence based on error indicators. Mesh-to-mesh solution mapping transfers solution state between dissimilar meshes to support rezoning and continuation.
+
+ALE spans behavior between purely Lagrangian motion, where nodes move with material, and Eulerian motion, where material flows through a fixed mesh. It is distinct from full Eulerian analysis, but it addresses the same practical problem: large deformation can make a fixed Lagrangian mesh unusable.
+
+## Why It Matters
+
+Mesh quality can determine whether a nonlinear finite element analysis remains meaningful. Adaptivity trades extra workflow complexity for controlled distortion, targeted accuracy, or the ability to continue after mesh replacement.
+
+## Connections
+
+- [[Finite Element Modeling and Convergence Checks]] gives the reliability frame for remeshing and error indicators.
+- [[Abaqus Restart and Results Transfer]] is the continuation layer needed when solution state moves between analyses or meshes.
+- [[Abaqus Eulerian and Particle Methods]] covers alternative discretizations for severe deformation.
+
+## Sources
+
+- [[Abaqus-Analysis-User-s-Guide-Volume-II|Abaqus Analysis User's Guide Volume II]]
+