add wiki

wiki/concepts/Abaqus Eulerian and Particle Methods.md

@@ -4,7 +4,7 @@ title: "Abaqus Eulerian and Particle Methods"
 complexity: advanced
 domain: computational-mechanics
 created: 2026-05-29
-updated: 2026-05-29
+updated: 2026-06-01
 address: c-000088
 aliases:
   - Abaqus Eulerian analysis
@@ -19,12 +19,15 @@ tags:
 status: current
 related:
   - "[[Abaqus-Analysis-User-s-Guide-Volume-II|Abaqus Analysis User's Guide Volume II]]"
+  - "[[Abaqus-Analysis-User-s-Guide-Volume-IV|Abaqus Analysis User's Guide Volume IV]]"
+  - "[[Abaqus Fluid Acoustic Eulerian and Particle Elements]]"
   - "[[Abaqus Adaptivity and Mesh Replacement]]"
   - "[[Direct Time Integration Methods]]"
   - "[[Finite Element Contact Formulation]]"
   - "[[Finite Element Heat Transfer and Field Problems]]"
 sources:
   - "[[Abaqus-Analysis-User-s-Guide-Volume-II|Abaqus Analysis User's Guide Volume II]]"
+  - "[[Abaqus-Analysis-User-s-Guide-Volume-IV|Abaqus Analysis User's Guide Volume IV]]"
 ---
 
 # Abaqus Eulerian and Particle Methods
@@ -41,6 +44,8 @@ The discrete element method represents large numbers of rigid spherical particle
 
 Smoothed particle hydrodynamics represents a continuum with particles and kernel interpolation instead of a connected finite element mesh. It is fully Lagrangian and useful for large deformation, free surfaces, and fluid-like continuum motion, though it can be less accurate than finite elements when deformation is moderate.
 
+[[Abaqus-Analysis-User-s-Guide-Volume-IV|Volume IV]] supplies the element-library side: `PD3D` is the discrete particle element for DEM workflows, `PC3D` is the continuum particle element for SPH workflows, and Eulerian element names such as `EC3D8R` identify multimaterial Eulerian bricks in Abaqus/Explicit.
+
 ## Why It Matters
 
 These methods are alternatives when a conventional Lagrangian mesh would distort, lose accuracy, or be the wrong abstraction. They trade finite element mesh connectivity for volume-fraction transport, contact-dominated particle motion, or mesh-free interpolation.
@@ -48,10 +53,11 @@ These methods are alternatives when a conventional Lagrangian mesh would distort
 ## Connections
 
 - [[Abaqus Adaptivity and Mesh Replacement]] is the mesh-smoothing/remeshing alternative for large deformation.
+- [[Abaqus Fluid Acoustic Eulerian and Particle Elements]] covers the element families behind Eulerian, DEM, SPH, acoustic, and pipe-flow workflows.
 - [[Finite Element Contact Formulation]] matters for Eulerian-Lagrangian and DEM contact.
 - [[Direct Time Integration Methods]] supplies the explicit dynamics context used by these methods.
 
 ## Sources
 
 - [[Abaqus-Analysis-User-s-Guide-Volume-II|Abaqus Analysis User's Guide Volume II]]
-
+- [[Abaqus-Analysis-User-s-Guide-Volume-IV|Abaqus Analysis User's Guide Volume IV]]