Example 6.5 Calculate laminate properties using Computational Micromechanics in Abaqus RVE

[@civilalgeria8087]

Thank you very much Professor Barbero for your scientific sharing.

[@EverBarbero]

your are welcome

[@mdasifrezwanshishir742]

we can't thank you enough Professor! Also, like your book very much!

[@EverBarbero]

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[@aloksrivastava4185]

Thank you so much for such helpful tutorials.

[@EverBarbero]

You are welcome!

[@turanturan2831]

Dear Prof. Barbero, I have a question regarding composite modelling. We can use solid or shell modelling in our modellings. I did that actually. In solid we need to make partition and use material orientation in material section and define orientation in each ply. In shell you define in composite layup directly in abaqus. I just have a question. When we model using the solid we normally define material properties in the corresponding section (E_11, E_22, and etc). In shell you define material properties in each layup. So, could we conclude that the one in solid is laminate properties and in shell the lamina properties should be defined, since in shell we define layer by layer, but in solid we just input material properties as a whole. Thank you

[@EverBarbero]

For each lamina, in solid and in shell models, we enter the lamina properties. For a solid it wants more properties like E3, but the other properties like E1, E2, G12, are the same.

[@turanturan2831]

@@EverBarbero Thank you Prof. Barbero, You are the only one I need to understand composites with abaqus. I hope you receive 1000 subscribers soon and put also thermomechanical and damage analysis.

[@Pishgul]

Thank you professor. Two questions. First, why you used interaction here? Second, what is the difference between applying bc in an initial step and propagate to other steps with directly apply in the next steps not the initial one?

[@EverBarbero]

Under "static, general" you can change the b.c. from step to step. If I want the b.c. to be applied always the same for all steps, then I put in on the "initial step" and let it propagate to the subsequent steps. If I wanted, I could make it disappear after a few steps, and put a different b.c. if needed.

[@EverBarbero]

I use "interaction" when b.c. are not enough to simulate periodicity conditions. In previous videos, symmetry b.c. maybe was enough to simulate the periodicity. If it is no longer the case, then I have to use interaction.

[@narendrakumarjharesearchsc5159]

when i tried to run the script i found this error can you say about this error ...........according to me i will have to change the location of file

[@EverBarbero]

yes, where Abaqus can find it

[@raviphanindra9454]

Thank you Professor for these videos. Professor I am using "Finite Element Analysis of Composite Materials Using APDL" text book. How can I proceed for getting E1, E2 for the laminated RVE ?

[@EverBarbero]

Make a simulation like you would do an experiment in the lab. Apply tensile stray, Ansys tell you the stress, divide one be the other to get E

[@raviphanindra9454]

@@EverBarbero Thank you Professor.

[@narendrakumarjharesearchsc5159]

File"C:/SIMULIA/Ex_6.5-post.py", line 5, in os.chdir(r'C:\SIMULIA\Ex_6.5') windows error: (2, 'the system cannot find the file specified','C:\\SIMULIA\\Ex_6.5')

[@EverBarbero]

you have to move the file

[@narendrakumarjharesearchsc5159]

Sir can you provide me python script

[@EverBarbero]

Go to barbero.cadec-online.com/feacm-abaqus/index.html > Examples ... and there you have all the .py, cae, etc. that you may need. Search by Example #.