A SIMULIA e-Learning Resource
created using Abaqus 6.11 

With the smoothed particle hydrodynamic (SPH) modeling technique you can model violent free-surface fluid flows (such as wave impact) and extremely high deformation/obliteration of solid structures (such as ballistics).

Note: This functionality was enhanced in 6.12. While the workflow presented here can still be used in 6.12, you now have the alternative of creating finite elements and having Abaqus automatically convert them into SPH particles.  This conversion may occur at the start of the analysis, or during the analysis based on criteria you specify.  The conversion option is supported in Abaqus/CAE and provides a much simpler method for generating SPH models.  For more information see  "Smoothed particle hydrodynamics improvements," Section 5.6 of the Abaqus 6.12 Release Notes. 

Narrated video:

The following video includes:
     - An introduction to SPH (0-3:27)
     - SPH Workflow overview (3:27-6:20) and demonstration ( 6:20-12:20)

This video was produced using Abaqus 6.11 and can also be found in the Introduction to Abaqus 6.11 web-based training site.

Now You try it! 

Download the attached file: SPH-BirdStrike-Model-Abaqus611.zip
Extract its contents, and run ws_sph_birdstrike.py before starting the steps shown in the demo.   If you get stuck, you can run ws_sph_birdstrike-demoAnswer.py to complete the Abaqus/CAE model as shown in the demo, and/or run completed input file birdstrike-final.inp.

Written instructions are provided in SPH-BirdStrike-StepByStep-Abaqus611.pdf (included in SPH-BirdStrike-Model-Abaqus611.zip)

References

 Attached PDF References:
 ---- Workflow quick reference:  SPH-Workflow-Abaqus611.pdf (a one-page printable reference)
 ---- Slides: SPH-Slides-Abaqus611.pdf

Technology Brief in the SIMULIA Resource Center:
---- “Abaqus Technology Brief: Abaqus/Explicit SPH Analysis of a Prosthetic Heart Valve”

Abaqus Manual references:
---- “Smoothed particle hydrodynamic analyses,” Section 15.1 of the Abaqus 6.11 Analysis User's Manual
-----“Impact of a water-filled bottle,” Section 2.3.2 of the Abaqus 6.11 Example Problems Manual
---- “Cask drop with foam impact limiter,” Section 2.1.12 of the Abaqus 6.11 Example Problems Manual

Training: Modeling Extreme Deformation and Fluid Flow with Abaqus

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