How to apply PBC with Force Loads in ABAQUS
Тәжірибелік нұсқаулар және стиль
This video shows how youcan impose PBCs with Force loads as against displacement loads.
#cmvideos #abaqustutorial #rve #composites #pbcgen2d #pbcgenlite #montcarlgen #periodicboundarycondition #concentratedforces
Time stamps
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You can quickly navigate through the videos using these chapters.
00:00 Intro
00:28 Why I am making this video
00:45 Creep vs Stress Relaxation Experiments
01:08 Design of the Composite model example used
01:25 Specification for the mateiral properties used
02:02 Creating History ouptus (variables) based on Corner nodes
02:45 Imposing relevant boundary conditions for tensile loading
03:37 How to specify the Force load
04:25 PBCGen2D: A Tool for imposing Periodic Boundary Conditions
05:23 Running PBCGen2D to impose PBCs
07:48 Reslts of PBCs with force load simulations
08:11 Which is better for PBC: Displacement or Force Loads?
10:13 Outro
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PBCGen2D: A software for applying periodic boundary condition
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Пікірлер: 9
wow! this are really helpfull! Thanks very much for share all your knowledge from ABAQUS dear doctor!
@MichaelOkereke
Жыл бұрын
Thanks, too. My, pleasure.
@MichaelOkereke, thanks for the nice tutorial. if possible, please provide us with a tutorial for 3D + RVE + PBC compression or tension
@MichaelOkereke
Жыл бұрын
Yes in deed...I have that in mind ... in future.
dear doctor！Great vedio~i have a question: abaqus Explicit computation Applying periodic boundary error? How to modify ***ERROR: Abaqus/Explicit has formed at least one very large implicit system of equations associated with enforcing constraints.abaqus explicitly computes an error when applying a periodic boundary? How to modify ***ERROR: Abaqus/Explicit has formed at least one very large implicit system of equations associated with enforcing constraints.
great video, can we do inverse homogenization to get the desired properties of material by Abaqus?.
@MichaelOkereke
9 ай бұрын
Hello, I cannot see why you should not be able to do inverse homogenization here. I have shown how for known microstructural constituent properties, you can use PBC (in this case based on a Force loading) to generate effective properties of the composite (globally). For inverse homogenization, you are trying to reverse what I have done. You properly will know some experimental data of the effective properties of the composite, then run this type of simulation (assuming some random microscale properties). In the end, you can generate the curve that matches what you ahve experimentally. The assumed microscale properties can then become you optimal microscale constituent properties. The big elephant in the room here is the 'assumed' and it goes to the question of how do you assume? Therefore, within the literature on inverse homogenization, some implementations like the Mori-Tanaka approach have been chosen to help you make that 'assumption' objectively. I hope this make sense.
Great videos! Would you like to record a tutorial for "direct FE2" in abaqus？
@MichaelOkereke
Жыл бұрын
Thanks for this. It's not straightforward to make such a video, but what might help is explain how one can do so in ABAQUS. This is something I can consider. Thanks.