Пікірлер

• 
  @talhatahir56416Күн бұрын

  sir i hope you are fine i am a student of mechanical engineering i have done few simulations during my studies but i face the problem during setting the step time. every time i randomly selected the step time for the simulation but i face the time increment error. sir can you please tell me how to exactly the set the step time to avoid this error

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  @preethisrisrinivasan57973 күн бұрын

  Hi, I am interested in the heating and cooling cycle to simulate shape recovery. May I know how I can achieve that?

• 
  @anulekhachakraborty99013 күн бұрын

  *** Error:ABAQUS/Standard rank 0 failed to allocate memory *** ERROR CATEGORY: ASSEMBLY I am getting this error, what could be the reason? My time increments are very small 1e-5, and the odb file till now is taking 55gb disk space. could this error mean that I require to run this analysis on a machine with more physical memory?

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  @ghumakkad_ladka80225 күн бұрын

  How to find displacement at failure for damage evolution for Johnson cook model

• 
  @RohitIITR5 күн бұрын

  one vedio LPBF on comsol multiphysics software

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  @ahmedaljumele27016 күн бұрын

  Can you please make a video for the damage in FGM using UMAT?

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  @ahmedaljumele27016 күн бұрын

  Thank you very much. Your videos are always the best, and I can't wait for the next video.

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  @cuongvucong79539 күн бұрын

  can you explain, why you use 'Ductile Damage Model' and not 'Johnson-Cook damage model'???

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  @ahmedaljumele270112 күн бұрын

  Awesome, thank you very much for your efforts. Please can you make a video for damage in the FGM using UMAT

• 
  @syedtahakhursheed838814 күн бұрын

  Can CPFEM be used with a surface-surface contact pair or should we use 3D contact? if yes what should be the appropriate timestep for it? A paper "Comparison of the implicit and explicit finite element methods using crystal plasticity" By Harewood states convergence is not achieved when using Contact Pairs with CPFEM model.

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  @memduhklc120915 күн бұрын

  Wonderful tutorial sir ! Just out of curiosity , at last step what is the reason behind multiplying step increment time with 50 MPa and calling it as failure pressure.

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  @Sandro-ss1st19 күн бұрын

  Many thanks for uploading this video.

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  @CompositesImdea20 күн бұрын

  Thanks for your useful tutorials. I can't find any tutorial about UEPACTIVATIONVOL Abaqus subroutine anywhere, could you make a video about it?

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  @niklausory874724 күн бұрын

  Hi, in abaqus in CP the results like stress are displayed in the local coordinate system of each point. Do you know field lf stress in the gui are then in the global coordinate system

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  @Professor3MEC21 күн бұрын

  I think they are in global market f I understood your question correctly. For local variables like please see sdv variables.

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  @niklausory874721 күн бұрын

  @@Professor3MEC ok then the gui display them in the global coordinate system. Because in the ODB they are in the local that s for sure

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  @sajadsafaei920524 күн бұрын

  Why you did not use the composite lay up?

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  @Professor3MEC21 күн бұрын

  It was long time ago but I think idea was to show delamination and hence the approach.

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  @gape0129 күн бұрын

  I think something might be missing in the tutorial sequence. I have tried to reproduce it in Abaqus 2020 and 2023 but there is always an error and the simulation does not even start. I have tried different solvers such as Riks, and Coupled temp-displacement (both in steady-state and transient). I have tried elements B31, B31H, PIPE31 and PIPE31H with no results at all.... What version are you using to run these simulations? I thik there might be a bug in these Abaqus versions...

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  @Professor3MEC21 күн бұрын

  I tried with 2023 as well and it works, I will try to find out which version I had at that time. Thanks

• 
  @Professor3MEC21 күн бұрын

  If you send me your file I can have a quick check

• 
  @syedtahakhursheed8388Ай бұрын

  My plasticity model works for time step 1*10^-6, when i run my nanoindentation simulation using that material, the computation time is insanely large (100+ days), what can I do to reduce it?

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  @Professor3MECАй бұрын

  it is explicit or implicit analysis? for explicit you may try mass scaling while keeping any eye on total energy and kinetic energy, as later shouldn't be significant. For standard analysis try stabilisation, and also contact controls and stabilisation options.

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  @saroj4736Ай бұрын

  can the above analysis be done by ansys

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  @Professor3MECАй бұрын

  I think Ansys already have AM modules. But I haven't used it for a long time so not sure. Apologies.

• 
  @arnobbaiga309Ай бұрын

  Sir,In Abaqus, I'm performing an explicit coupled temperature-displacement analysis. In my analysis it requires normalizing of time. The author of the paper says "We normalized time along with the normalization of thermal conductivity with its reciprocal in order to bring down the computational cost of simulations. The obtained solution using normalized time was again converted back to normal time accordingly " . Sir, How can I return to regular time in Abaqus after normalizing? My thermal conductivity is 10 and my step time is 36000 seconds according to the paper. Does my analysis require me to inverse these values in order to normalize? Is this the correct way? Should I additionally normalize the time that I utilized as a tabular input time(0-36000 sec) for my boundary condition if I do this?. I would be very grateful if you just share your thought regarding my query.

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  @Professor3MECАй бұрын

  Its not clear to me how they have normalised, as normalising means with some specific quantity. I can better comment after looking at the paper you have mentioned. Thanks

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  @user-yr5ys5st8lАй бұрын

  Thank you professor! Your manual is very helpful. But I got a problem, when I simulated a similar task some elements with low temperature (around 3-10 Kelvins) occured during analysis. This problem aborted my analysis. What can cause this? Thank you

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  @Professor3MECАй бұрын

  did you assign initial temperature in the model definition?

• 
  @sivaadapa9255Ай бұрын

  Bro warning, Displacement increment for contact is too big, how to slove

• 
  @Professor3MECАй бұрын

  try changing boundary conditions, also check materials properties, sometime that can cause such issues.

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  @ahmedaljumele2701Ай бұрын

  Please can you make a video for the damage in FGMs using UMAT

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  @ahmedaljumele2701Ай бұрын

  Please can you make a video for the damage in FGMs using UMAT

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  @Professor3MECАй бұрын

  no promises but will try as writing UMAt is quite a bit of time investment.

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  @williamcase426Ай бұрын

  AI probably isn't going to replace CAE analysts anytime soon unlike copywriters and graphic designers

• 
  @kar-dt1hkАй бұрын

  THANK YOU SIR FOR THIS VERY INTERESTING VIDEO, SIR I HAVE ONE QUESTION , i have modeld hollow sphere , then i' applied radial displcement at inner surface ,when i submit the job i get error , can help me please to solve this error , pleaes sir can you make make video for this problem

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  @Professor3MECАй бұрын

  sure, please send me the file and i will have alook and create a video. www.professor3mec.com

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  @kar-dt1hkАй бұрын

  @@Professor3MEC sir i have send you my model to email

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  @ZahidHussain-cv2foАй бұрын

  I found this video very useful. Thank you for uploading it. I have to simulate nanoindentation experiment, I am trying to match laod displacement curve of simulation and that of experiment, but in vain. How can I find tangent modulus and yield strength of my film? I have elastic modulus (160GPa) and hardness (7Gpa)? 16:08

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  @Professor3MECАй бұрын

  Glad you find it helpful. I have another video on that if you could please have a look on the channel?

• 
  @FreelancersaneАй бұрын

  You know what? I am a regular viewer of your KZread Channel. I have seen all your videos and your content qualities are very good. I learned lots of things from you. Your channel has great quality contents but still it is not delivering its right audiences due to SEO problems. You should focus on your SEO so that You can get a big fanbase. Thanks.

• 
  @farzandali77872 ай бұрын

  Sir, can you please make a video how to model Multiwell horizontal HYDRAULIC fracturing using Abaqus XFEM

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  @Professor3MEC2 ай бұрын

  If you could send me a description with parameters then I can give it a try. For fracture using XFEM I have already created a few tutorials

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  @farzandali77872 ай бұрын

  @@Professor3MEC Sir I’ve sent you an email; please check it.

• 
  @ahmedaljumele27012 ай бұрын

  Hi Professor, can I contact you in private? Please provide me with the contact information. Thank you

• 
  @Professor3MEC2 ай бұрын

  [email protected]

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  @vikramdhanda98812 ай бұрын

  Please provide the link of Excel data I am unable to do that😢

• 
  @Professor3MEC2 ай бұрын

  I will have a look for it. Did you try downloading the files from www.professor3mec.com ? It may be there already?

• 
  @mariogalindoq2 ай бұрын

  Your blurb at the bottom left of the screen is very uncomfortable, distracting and disturbing.

• 
  @Professor3MEC2 ай бұрын

  I got rid of them recently 🙏🏻 apologies for any inconveniences

• 
  @sauravsingh16892 ай бұрын

  Yeah I got it, thank you! Can you share your mail so that I can converse further.

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  @Professor3MEC2 ай бұрын

  You may contact through www.professor3mec.com

• 
  @imdadimmu87412 ай бұрын

  I m research scholar and I need your help in my research work

• 
  @Professor3MEC2 ай бұрын

  sure how can i help?

• 
  @imdadimmu87412 ай бұрын

  Hi sir

• 
  @davideevangelista10782 ай бұрын

  Good video! What if I have a 3D structure with different sections along the Z-direction? How can I plot the pressure?

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  @Professor3MEC2 ай бұрын

  you can write a short python sript or abaqus cae mavro to automate

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  @davideevangelista10782 ай бұрын

  @@Professor3MEC thanks for the answer! I guess it is too much to ask for a video? 🥹

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  @kabilaank38622 ай бұрын

  what is the version of abaqus you used here. thankyou.

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  @kabilaank38622 ай бұрын

  can we change the tool path as per our wish, or it can be done only with straight lines

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  @Professor3MEC2 ай бұрын

  @@kabilaank3862 I can't recall the version but most probably 2021 or later. Yes tool path you can have as you want.

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  @alirezabaharpour70752 ай бұрын

  I want to generate a stress-strain curve in this model. Could you please do me a favor and explain it to me?

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  @Professor3MEC2 ай бұрын

  sure, do you mean contour plots?

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  @alirezabaharpour70752 ай бұрын

  @@Professor3MEC no, XY plot so I can generate the stress-strain curve

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  @danielorueri60032 ай бұрын

  Hello Prof, Please do you have a tutorial for modeling of automobile tyres?

• 
  @Professor3MEC2 ай бұрын

  What sort of modelling do you want? Just dynamic modelling or friction or wear?

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  @danielorueri60032 ай бұрын

  @@Professor3MEC dynamic modelling please. Thanks for your prompt response.

• 
  @danielorueri60032 ай бұрын

  Hello Prof. I don't know if you have the dynamic modeling video. Kind regards

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  @anulekhachakraborty99012 ай бұрын

  My J integral values and the J integral estimated from Ks is coming very different, is it normal? what is the difference between the two?

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  @Professor3MEC2 ай бұрын

  Are you using elastic plastic material? As for linear elastic solutions both should be approx. same.

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  @mohammad-ff4nf2 ай бұрын

  i wanna know about uhard model . how can i?

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  @Professor3MEC2 ай бұрын

  Uhard is much simpler than UMAT. As it only requires slope of stress strain curves, i.e. derivatives w.r.t. plastic strains.

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  @marel71192 ай бұрын

  Thank you for the tutorial; it's very helpful. I want to modify the fall cone test, which is somewhat similar to the nanoindentation test. However, in this test, the cone penetrates the sample solely under its own weight without any additional applied load. The problem with my simulation arises when the angle of the cone is reduced (e.g., 15 degrees as half of 30). In these cases, the cone does not make contact with the sample and seems to penetrate without resistance. Conversely, with a larger angle (like 45 degrees), this problem does not occur. Can you guide me on how to solve this issue? I would be grateful if you could provide a way to contact you, so I could show you figures for a clearer understanding of what I am talking about. Thank you very much in advance

• 
  @Professor3MEC2 ай бұрын

  you can contact me through www.professor3mec.com.

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  @giangtruong68452 ай бұрын

  May I ask whether we can use it for plane stress?

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  @Professor3MEC2 ай бұрын

  plane stress and plane strain require different arrays of stresses and strains so better check ABAQUS documentation.

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  @kvsptp-dw1ii3 ай бұрын

  Sir please make a same type of video on selective laser melting simulation

• 
  @Professor3MEC2 ай бұрын

  I will do if I get some time in near future. Thanks.

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  @CHANDANKUMAR-qc6zj3 ай бұрын

  Sir video is very good, kindly i request to you please give the dflux subroutine code of first section of this video

• 
  @alexbay78853 ай бұрын

  Hi Dr. I sent you an email to get in touch. Please respond. Alex Rob

• 
  @tahakhurshid50073 ай бұрын

  Amazing video. In the context of Crystal Plasticity, is the trial stress and yield surface still applicable?

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  @Professor3MEC2 ай бұрын

  Not really.

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  @mahaelsaeid37133 ай бұрын

  Very useful series!☺️

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  @ahmedaljumele27013 ай бұрын

  Big like Thank you for your awesome. We look forward to next videos on UMAT and damage.

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  @SauravKumarPME3 ай бұрын

  i just want to know, how to get the data of yield stress and n (strain hardening exponent) while unloading time?

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  @Professor3MEC2 ай бұрын

  Sorry for delay in replying. Did you already find the answer to it?

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  @ahmedaljumele27013 ай бұрын

  Part 7 is messing

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  @Professor3MEC3 ай бұрын

  it should be there.