Why Traditional Meshing Breaks Down in Extreme Deformation Problems
Some of the most demanding simulation problems involve extreme deformation: fluid structure interaction, fragmentation, blast loading, or high speed impact. Traditional Lagrangian meshing struggles here, since large deformations distort the mesh badly and often require extensive remeshing just to keep a model running. Eulerian and Smoothed Particle Hydrodynamics (SPH) approaches avoid this problem entirely, since neither relies on a mesh that deforms with the material. Abaqus offers two techniques built specifically around this idea: Coupled Eulerian Lagrangian (CEL) analysis, which combines an Eulerian domain with Lagrangian bodies, and Smoothed Particle Hydrodynamics (SPH), a mesh free particle based method for even more extreme deformation.

Webinar Scope
In this webinar, 4RealSim will introduce both CEL and SPH in Abaqus. Participants will learn what each technique is, when to use one over the other, and how to set up a basic analysis using each. We will walk through practical examples including liquid filled tanker impact, blast loaded structures, bird strike, tire hydroplaning, projectile impact, and spraying.

Topics Covered

• Why traditional Lagrangian meshing struggles with extreme deformation

• CEL fundamentals: combining Eulerian and Lagrangian domains in one model

• Setting up a CEL analysis: Eulerian geometry, material definition, volume fractions, and general contact

• CEL examples: liquid filled tankers, blast loading, bird strike, tire hydroplaning, forging, digging, and airbag inflation

• SPH fundamentals: mesh free particle based modeling for extreme deformation

• Setting up an SPH analysis: converting elements to particles, and particle generation

• SPH examples: water wave impact, pump priming, spraying, and high speed projectile impact

• Choosing between CEL and SPH for a given problem

• Known limitations of both techniques

Who Should Attend?

• Simulation engineers dealing with fluid structure interaction or extreme deformation problems

• Analysts working on impact, blast, ballistics, or fragmentation simulations

• Engineers modeling spraying, compaction, or other highly dynamic material behavior

• Anyone whose problems are too extreme for traditional Lagrangian meshing alone

Prerequisite

• 4RealSim Abaqus customer