김경종
4.2 KiB
type, title, complexity, domain, created, updated, address, aliases, tags, status, related, sources, source_refs
| type | title | complexity | domain | created | updated | address | aliases | tags | status | related | sources | source_refs | ||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| concept | Abaqus Eulerian and Particle Methods | advanced | computational-mechanics | 2026-05-29 | 2026-06-01 | c-000088 |
|
|
current |
|
|
Abaqus Eulerian and Particle Methods
Definition
Abaqus Eulerian and particle methods are nonstandard discretization workflows in Abaqus/Explicit for severe deformation, flow-like motion, granular motion, and mesh-free continuum behavior.
How It Works
In Eulerian analysis, nodes are fixed in space and material flows through elements. Elements can be partly void, partly filled, or contain more than one material. Abaqus tracks material with Eulerian volume fractions and reconstructs material boundaries during each increment. Coupled Eulerian-Lagrangian contact lets Eulerian materials interact with conventional Lagrangian structures.
The discrete element method represents large numbers of rigid spherical particles as single-node elements with contact interactions. It is meant for granular or particulate systems rather than deformable continua.
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 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.
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.