Hello Prof. Barbero, I am modeling debonding of one material from another material without adhesive in between them. Which approach would you recommend for that? Best regards

¿Existen programas libres para este tipo de cálculos?

I have done mass diffusion analysis. How to use the resulting moisture concentration in a next coupled disp-temp step?

HELLO Professor, I have written the Python code; how can I convert that Txt file into .odb or .for format?

Respect to you, Professor! from Ethiopia!

Excelente trabajo, muy util.

es que il est possible de faire une simulation sur solidworks ?

Thank you, Sir

Thank you very much for this video. i tried to test the example 11.1 with the thermomechanical fatique damage. i am getting the error: This error may be due to a mismatch in the Abaqus user subroutine arguments. These arguments sometimes change from release to release, so user subroutines used with a previous release of Abaqus may need to be adjusted. I think the Subroutine.for needs adjustments, because i am using Abaqus 2022. Any hints how to solve it?

Mr. Barbero, thank you very much for your instructive video. One thing I couldn't understand for plane stress analysis in Abaqus is that I obtain zero strain along z-direction (out-of-plane direction) but it must not be. For plane stress, out-of-plane stresses are zero but not the strains. I tried to extract the strain results by defining field outputs. But the strain along z-direction is still zero. I did not figure out this situation in Abaqus. I am grateful if you have any suggestion.

Link not available . If possible please update the links

Hello professor, random question but related to safety factors, whenever you use any failure criterion, is the factor of safety just 1 - the value given in the output? Also when does one decide to have to use max stress vs hashin damage? Also are these parameters similar/the same or are they completely different?

If I am taking 3D case element type will be quad hex ?

Hi Sir! Thank you for excellent Book ''Finite Element Analysis of Composite Materials''! I m wondering if you have a video or tutorial on how to resolve in Ansys the example 5.2 page 125 : Plot sigma_yz and sigma_z, laminate with properties.. Thank you in advance!

Can you please help to get the nodal output in cylindrical coordinates?

Sir, can you please explain a damage model of FRP plate with hole load-deformation curve till failure??

THANK YOU

5:09

Thank you for the tutorial, Prof. I have a problem that the module 'UgenKeyword.inp' cannot be found Prof. I use Abaqus version 2017 and Python 12.1 then I run it on notepad ++ but I cannot run it because the .py code cannot find the UgenKeyword.inp file, Prof. Even though I have placed UgenKeyword.inp and DDM5 write keyword block.py in the same folder. Can anyone give advice and direction to solve my problem Prof? Thank you

Sorry may sound stupid, but how are the values input in failure stress found or calculated?

Thank you for the highly valuable video, Professor. I would like to ask a question: Can the symmetry constraints mentioned in the video be replaced with Tie constraints? Thank you.

G23 is calculated using theoretical formulas, rather than obtained through FEA analysis. Is my understanding correct, Professor?

Sir..excellent video.. I have added some cohesive interactions in my model. Now my model is taking too much time to finish one increment. It may take even one month to complete the job.. I am modeling a unit cell of unidirectional composite.. Are there any methods to reduce the running time sir?

if there are 8 layers of 1mm and the applied force is 100N/mm the calculation should not be 12.5Mpa and not 10Mpa

"we can plot the stress S11, which is axial, in the x-direction, taking it from any element in the 0 degree lamina But how we do that? Easy, by adding S11 for element 600 to an additional history request. " Please if any one could help, how we can add S11 for element 600 to an additional history request???

Thanks Prof. Barbero. Why is that sometimes the results differ for continuum shell element and hexahedral element for the same laminate problem (1 order of magnitude difference in displacement)?

Hello thanks a lot for the video . Please I am stuck in that, I can not find the python script and also the website is not available?

Hello sir, In damage modeling using UMAT, the following error is coming.. ''Time increment required is less than minimum provided''. My model consist of more than one material. Once the damage reaches maximum value in one element this error is coming and other elements are not even reaching the peak stress.

‏please Dr. Explain how do aply simply sypportedplate by Abaqus not clear in vidue

Sir,what you have suggested for sandwich plate modelling is validation of any research paper.

My Question: Why did you not use Solidworks? I have performed similar Simulations on Solidworks as well. But I have never used Abaqus. So any specific reason for using Abaqus and not Solidworks?

Dear professor, do you know how to get the material properties used in this model?

Thanks for you dear prof

hello Mr Barbero! thank you so much for this viedo.I just want to know how can I get the GI, GII, GIII in the BK model when in the step of intercation/contact property? someone told me to refer to paper, however, i have not got it. I just wanna get those parameters by experiment. but i dont know how to get? could help me ?

Hello Prof. Barbero, is it possible to give moisture stress through saturation value? And will there be any change without giving the change in material properties with moisture content?

Hello professor think you for the information but i want something for you and i wish to answer me i have a late of sous program of E-FGM and P-FGM but in 3D and 2 typ of degradation one with Z and another with R and I wich to halp me for use the best one or if you have m I have them if you want and thank you

Hello Dr. Ever, thank you for the video. What does mean "element relative thickness"? Why did you put "1" for all plies? What's the difference between the ply thickness and element relative thickness?

Thank you for this video. I did the same procedure but in the end, I got an error! "Error in job Job-1: 2800 elements have missing property definitions. The elements have been identified in element set ErrElemMissingSection" Could you please help me to solve this error because I also got the same error when I tried to model a scarf joint from a paper.

hi everyone, what are orthotropıc mechanical properties for timber beam in abaqus? please help me

APDL commands can be inserted in workbench.

professor do you know how to implement orthotropic viscoelasticity in Abaqus?

Thank you sir , i am a beginner but does it seems like that when we using lamina type in abaqus to define modulus , when input let say E1 equal to 2000 that mean for both tensile and compressive stress it uses E1 , but is it really same Modulus for both tensile and compressive should be used ?

I did the same, save file as .db but i only get .db files no .log files found in the same folder. Any reason why?

sir do you know how to do fgm buckling of plates using abaqus.

Hello Mr Barbero thank you for this video , i want just to know to simulate an initial push-out delamination (in the hole exit ) of an open hole composite laminate , considered as an inducted damage from the drilling process , then study the propagation of this delamination by vcct method in a compression test ?

thank you so much. but what is the critical buckling load?

Thank you very much! Helps me understand my PhD tasks.

superb

Wouner why it's idling in gear and no ones around