Hi Salah

You can check YouTube tutorials, there are so many that you can benefit from.

You will need to simulate two bodies with contact property between them, so you need to learn about the contact.

I have simulated dynamic macro indentation in the past, and I can tell you it's not that hard. However, incorporating the nano physics in there is the challenge. I have done experimental nano indentations, but did not have the chance to simulate them

If I can be of any help, let me know

Regards

Hi Amin,

Thank you for the suggestions. I am right now going with the interactive tutorials abaqus has, to get acquainted with the abaqus.

Thanks

Salah

Hi Salah

i am working on the exact same problem. And like you, i too am new to ABAQUS. Can you please suggest on how should i get started.

Regards

Harshit, I could not find anything which would help to jump-start the project. So, I started from the basics. The interactive edition of abaqus manual, user manual and example problem which are related to contact problem, these are the things I am trying to cover. This takes time, but right now I think that's the best thing do.

My progress: I was able to model the experiment for 2-d; however, I could not initiate the contact as of yet.

Dear friends,

You might find some basic and beneficial tutorials in the attached file. Sorry in advance if you already have it.

My best wishes,

Navid

Hi Navid,

Thanks for sharing the file. I will take a look.

Hamim

Thanks Salah. i too think that would be the best way to proceed,

Thanks Navid for the file.

Hey guys, i am working on bending of sheet metal in which i have to model the punch and the metal sheet which is quite similar to your problem of indentation in which the indenter would be deforming the material plastically....

I have modeled a 3D plate and circular punch, but i am getting an error which says "there are 2 unconnected regions in the model" .....I am not able to drive away this error...

Please help....thank you

Dear Bhakti

there must be something wrong with your contact between the two bodies. try to review that. try using surface to surface contact

HI Bhakti,

http://abaqusdoc.ucalgary.ca/v6.9/books/gsa/default.htm

this example from the abaqus documentation might help you.

I am simulating a plate (deformable) and a ciculrar punch (analytical rigid)....the plate is simply supported and the punch is initially not in contact with the plate....i am giving displacement input to the punch using Boundary condition's tab...

Also, i have defined surface to surface contact in interaction module with punch as master surface and plate as the slave surface

@ Amin: the two bodies are not at all coming in contact with each other which was evident when i saw the result in visualization module...this is the reason of the error message( "there are 2 unconnected regions in the model")...i have used surface to surface contact only....

@ Harshit: I could not find any specific example related to my contact problem in the link provided by you....

Thank you all for replying....:)

Try different types of contact

There is one tutorial. Search google for "sheet metal forming simulation ABAQUS".

@ Salah.....Thanks....it would be great if you could upload that pdf over here....because i tried downloading some pdf tutorial from the above mentioned google search page..but could not download it....

Also please have a look at the attached thesis....check if it could help you in your project....

@Bhakti: Sorry for delayed response. See the attached pdf and follow the tutorial.

@Dr. Raabe: Thank you so much. I will read up the things you have provided and get back to you.

@Salah: thanks a lot for that pdf....just had a glance at it....it really looked very helpful as i am still stuck with contact issues in my ABAQUS simulation....

I will get back to you when i read it in detail....

And could you please tell me about the source of this pdf...it does not look like the ABAQUS manual that i am following....

Thanks again for all your help......

@Bhakti: I believe this is from the ABAQUS interactive manual. This can be accessed from the ABAQUS software. If you can't find it, let me know.

@Salah: I followed the pdf manual which you had uploaded and could run my simulation successfully....I am no more getting the error "there are two unconnected regions in the model"....thank you loads for the pdf....

And yes I was able to locate the manual that you uploaded in my ABAQUS documentation....unfortunately I never myself found this tutorial while i was referring the ABAQUS manual......

Really thanks a lot for all your help....:)

@Salah... what is the status of your ABAQUS nano-indentation simulation?..are you able to simulate it successfully...?

And I would like to mention this that my simulation is not even having a single warning....and that is exceptional....too happy...:)....:)......thanks

@Bhakti: glad to hear about the news. Happy that I could help.

I have my model running for regular materials. Now learning how to write and implement UMAT.

Hey Bhakti Patel.. how you are not getting 2 unconnected regions. Please share what to do. Regards

Hi, Salah. I'm on the same situation. I just started studying nanoindentation response of Shape Memory Alloys and I'm going to be using ABAQUS. This is a very good tutorial to start with:

https://www.youtube.com/watch?v=urD_VD2UP5w

Regards! 

Thank you Francisco :)

Go through attached video.