FEM Foam Project

Contest Ended, Winner(s) have been selected.
Description:
Objective is to construct and replicate (to a high degree of accuracy) the experimental compressive test results for a foam specimen in Abaqus. Please find the attached file with the product dimensions and experimental test data. Upon the succesful completion of this project, additional work will be granted to the designer. We will require the Abaqus project file with the stress strain plots to ensure that the project tasks have been met.
Wants:
Accuracy of model results to actual experimental test results and the speed of which we recieve the submissions from different designers (i.e. speed and accuracy is key).
Don't Wants:
I don't want a model that does not work ;-) I also do not want a one time designer, I am looking for designers who can demonstrate highly accurate results and are willing to take on further work after this project.
Ask for Sample:
As for a sample we would require screenshots of the Abaqus model stress strain test results and a side by side comparison of the experimental data (provided in the attached file) and the Abaqus data (graphs and data tables)
Software:
  1. Abaqus
  2. ANSYS
  3. Siemens NX (Unigraphics NX)

Entries

1st Winner
#1 Foam model by Maxim Khudyakov
Hello,
I am sending you a working model (inp. file) that reproduces test 1 with a high degree of accuracy. A comparison of the model and the test and the required screenshots are presented in the enclosed Excel file and Word file, respectively.
I am looking forward to further cooperation.
Regards,
Maxim
more
Jan 2, 2017 19:28
#2 Foam_part by MarK91
Hello,
I am sending you the input file of my model (Abaqus) that repeats the experimental data for the Test 1.
Excel file that compares the curves is also attached.
If you have any questions, do not hesitate to ask.
more
Jan 8, 2017 14:19
#3 Foam Model by mohamed khairy
Hi ,
I send you compressed file contains the following :
1)Abaqus Input Files (.inp)
2)Comparison graphs between abaqus model and Experimental Data
3)Excel sheet shows the Numerical data of the abaqus model
4)Report in word file that descipe some theoritical background along with the results
Note: you'll find the results of all the tests you've sent not just the first test.
I'm an Aerospace Engineering student , nonlinear and Advanced materials is part of my studies . So i am really interested in this field and i really would like to work with you in your further studies.
Regards,
Mohamed Khairy
more
Jan 16, 2017 3:44
#4 Foam material by MaazCad
I have attached the Model which uses the test data provided by you and behaves accordingly you can change the material to access various tests.
more
Jan 16, 2017 11:33

Discussion

Fri, 13 Jan 2017 13:20:17 +0000
Hi Browne03,
Can you extend this contest?

Browne03

Buyer

Sat, 31 Dec 2016 15:14:08 +0000
Dimension is in mm, Force can be found... , four cycles of loading and unloading, take test 1 preferrably!
Sat, 31 Dec 2016 08:30:00 +0000
why is there four set of test? are you looking at the average for extracting material property?
Sat, 31 Dec 2016 08:29:38 +0000
Helo Sir,

Dimension of object is in mm or cm?
Sat, 31 Dec 2016 07:49:43 +0000
how much force needs to be applied
Fri, 30 Dec 2016 21:24:53 +0000
As he mentioned it is allowed to use any software. But the problem with Solidworks is that it can't read more than 200 points for stress-strain curve to make a material properties profile. It will turn out to be inaccurate. I suppose that the proper way is to look for foam material mathematical model which has all poisson ratio, shear modulus, compression, tension and so on then numerically solve it. Make approximate fitting curve for the experimental data provided. Then fine tune the properties.

Anyway its long journey unless someone has more sophisticated tool to quickly read data and extract the relevant details. But I'm skeptical that solidworks can do it.

That was my opinion, though I may try it out. Not really sure where I can end up.:D
Fri, 30 Dec 2016 20:24:19 +0000
can we use Catia or SolidWorks?

Browne03

Buyer

Fri, 30 Dec 2016 13:26:04 +0000
Thats correct, the material properties would then be used as input for the model.
Fri, 30 Dec 2016 13:21:08 +0000
Seems you want to extract material properties of the foam? Am I getting it right?

Browne03

Buyer

Fri, 30 Dec 2016 12:50:38 +0000
Not compulsory, you can try it out in Ansys or any other software of your choosing
Fri, 30 Dec 2016 12:33:46 +0000
Can we use another software for simulation?
Fri, 30 Dec 2016 12:05:51 +0000
is it compulsory to model it in abaqus? I can do it in ansys

Browne03

Buyer

Fri, 30 Dec 2016 08:07:27 +0000
Great, best of luck to you! Looking forward to seeing your submission!
Fri, 30 Dec 2016 05:32:52 +0000
Hello sir I can do that.

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