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Convergence errors in Abaqus, too many attempt error, (Interactions in Abaqus Part - 04) 

SimTech05
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This is part-4 of Interaction/Contact errors in Abaqus. "Too many attempts made for this increment" is one of the most common error in Abaqus interactions. Let's understand.
In the previous video, I theoretically explained all about contact calculation made by software and Overclosure issue. In this video, I considered a simple example with an Overclosure issue and discuss remedies.
For related questions & discussion, you can contact me on 7891401376. or mail me gkn0504@gmail.com
Telegram Link - t.me/joinchat/...
FaceBook Group - / simtechknowladge

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28 авг 2024

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Комментарии : 48   
@moneyminded2918
@moneyminded2918 4 года назад
I like the way you present the problem description and its solution in the video. you're way is totally defferent and unique. Keep the good work going up.
@simtech0598
@simtech0598 4 года назад
Sure dear, & Thanks for appreciating work.
@hephaistion3
@hephaistion3 4 года назад
You are the lord of Abaqus!
@simtech0598
@simtech0598 4 года назад
Dear, My knowledge not more than 10% in FEA. Sky of FEA is limitless i know only few clouds.
@kenfackromaricpavel5042
@kenfackromaricpavel5042 4 года назад
Like your all videos they are all great
@mangeshjadhav9134
@mangeshjadhav9134 4 года назад
Again... knowledgeable video... Waiting for next video
@simtech0598
@simtech0598 4 года назад
Thanks..
@lintapaul3108
@lintapaul3108 Год назад
Sir Really informative video
@arunantoaa
@arunantoaa Год назад
Superb content
@aju007pv
@aju007pv 4 года назад
Sir can u explain about normal and tangential behaviour....and also types of contacts and contact algorithm in abaqus??? Very useful video....thanks a lot sir
@simtech0598
@simtech0598 4 года назад
Dear, Types of contacts i already explained. Video available in contact playlist - SimTech05 channel. Normal and tangential behaviour I'll explain in subsequent videos.
@abhimuliya7456
@abhimuliya7456 8 месяцев назад
"Abaqus/CAE kernel exited with an error, how to resolve", this message shows after installation when I open Abaqus 2023 first time in my Windows 11 Laptop
@cha-e_8565
@cha-e_8565 3 года назад
Thanks sir for the AWESOME video..BTW, Can I modelling the actual condition of bolt with hole tolerance in the abaqus. Let say, the bolt size is 16mm while the hole size is 20mm. In this regard, there are 2mm gap tolerance btw both surface. Do the abaqus capable to run this modelling?or it will be an error due to surface contact issues? or the software will interpret the gap as an issue and automatically resolve the problem like the overclosure problem that u has presented in this video?...Or the modelling can be simplified by simply ignoring the tolerance gap btw those surfaces?..thanks in advance.
@simtech0598
@simtech0598 3 года назад
Dear, Tolerance model you can stimulate. More you can take different assembly and run simulation... you will get better idea.
@cha-e_8565
@cha-e_8565 3 года назад
Dear sir, adjustment and no adjustment for finite sliding are available in STANDARD surface to surface as u presented. Yet,this option doesn't exist for EXPLICIT surface to surface contact.Why these options doesn't offer in Explicit contact?
@simtech0598
@simtech0598 3 года назад
Dear, Contact control options are available for explicit also but not Directly in contact defination. We need to define control individually otherwise it consider default one.
@shuangbiaoliu6055
@shuangbiaoliu6055 2 года назад
Thank you for the video. But it seems that although the adjustment allow Abaqus to complete the simulation, the result is not reflecting the interference. So the adjustment did not really solve the issue, right? Do you have a way to solve the issue and get a proper solution?
@simtech0598
@simtech0598 2 года назад
Dear, Initial adjustment option is used when the unwanted small penetration of elements/nodes. It remove penetration without any stress development. On other hand... For press fit type of problem you need to introduce interference fit parameters in contact.
@kuumarr1980
@kuumarr1980 3 года назад
what was the warning posted during the last part of the video with slave adjustment. it shall be useful for me understand better
@hitman5601
@hitman5601 2 года назад
HELLO SIR I AM DOING IMPACT SIMULATION ON COMPOSITE MATERIAL BUT WHILE CALCULATING RESIDUAL VELOCITY MY VELOCITY IS NOT REDUCING MUCH IT ONLY REDUCE FROM 100 TO 99M/S ANY IDEA?
@rzgarasadd2395
@rzgarasadd2395 3 года назад
Sir plz could you tell me how can fix value of minimum increment time when i change ot it go to oringinal value again not changet then when run model it give me too many attempt
@hassanraza3786
@hassanraza3786 4 года назад
Sir, how to resolve this issue if we use orphan mesh imported from hypermesh.
@simtech0598
@simtech0598 4 года назад
Dear, If possible use adjust option to remove overclosure. If intersection of elements are excessive..you need to modify mesh.
@zainsaeed147
@zainsaeed147 3 года назад
I am conducting uniaxial tensile test on a grouted sleeve connection...i was advised to do mesh convergence study before the velocity convergence ...i analyzed my model with different mesh sizes and plotted the load displacement curves..the models shows same peak load at mesh size of 10mm, 15 and 20mm but once i lower the mesh size i get the lower values of peak load. so should i consider that the solution got converged at 10mm. ??
@zainsaeed147
@zainsaeed147 3 года назад
my expectation was that when i reduce the mesh size it should give me higher peak loads for the connection but vice versa happened
@simtech0598
@simtech0598 2 года назад
Dear, Mesh convergence means you will get near to constant value even if u reducing mesh size. If not then convergence study is incomplete.
@kannteudom4504
@kannteudom4504 3 года назад
Thanks for this great video sir! But I have followed as your explanation and still had error with "Displacement increment for contact is too big". Can you recommend some solutions?
@simtech0598
@simtech0598 3 года назад
Dear, many possibilities. Need to check bcs.
@user-hz9nl3jv9k
@user-hz9nl3jv9k 4 года назад
Hey sir, could you make an composite nonlinear simulation video?
@simtech0598
@simtech0598 4 года назад
Dear, It will take time. I have to finish contact, FSi, explicit series videos. However if u have doubt may i can help.
@aju007pv
@aju007pv 4 года назад
Sir also can u explain contact non linearity
@simtech0598
@simtech0598 4 года назад
Already explained in video of my channel "SimTech05" - Abaqus playlist - linear & nonlinear Analysis in FEA, there are 4 videos. I suggest to go with all.
@rahulrakshit2865
@rahulrakshit2865 4 года назад
Sir I tried stretch forming operation...deformable shell as sheet and rigid shell as binder....I am giving load on the binder but the load is not getting transmitted to sheet....Is the problem due to interaction?
@simtech0598
@simtech0598 4 года назад
Yes, Something missing in interaction.
@rahulrakshit2865
@rahulrakshit2865 4 года назад
@@simtech0598 I am using explicit and have given general contact... Please give some suggestions how to make it successful
@simtech0598
@simtech0598 4 года назад
If any error/warning msg appears plz check it.
@rahulrakshit2865
@rahulrakshit2865 4 года назад
@@simtech0598 no error...but there are warning messages..1.BCs have been prescribed at each nodes belonging to rigid bodies but are not rigid body reference nodes...Such BCs don't constrain motion of rigid body..... 2. OP=NEW on CONTACT is ignored when general contact definition is specified as model data.
@simtech0598
@simtech0598 4 года назад
Need to look at model. Plz send on my mail - gkn0504@gmail.com
@pawanrkadwadi8924
@pawanrkadwadi8924 4 года назад
Plz sir make tutorial on connections
@simtech0598
@simtech0598 4 года назад
Dear, I'm Continuing the same but in sequence.
@Shein98
@Shein98 4 года назад
Hello sir.. i Simulation friction stir welding of 6061Al .. in welding step after 4 second it stopped and nor convergence occurred.. I change Element size and Check temperature(under melting point) but i didn’t solve error.. can you help me how i do??
@simtech0598
@simtech0598 4 года назад
Plz let me know how can i help you dear ? For variety of model and steps there can be lots of possibilities of this error. What error msg u have ?
@Shein98
@Shein98 4 года назад
SimTech05 I send image to telegram group.. can you answer there?
@Shein98
@Shein98 4 года назад
SimTech05 When i use slow welding transverse, the model is stopped at 4 second and no increments occur.. no problems in plug and dwell occur.. just in welding step.
@simtech0598
@simtech0598 4 года назад
@@Shein98 Dear, As i mentioned in group check warnings. It is impossible to tell reason without looking at file.
@Shein98
@Shein98 4 года назад
SimTech05 I sent images to group 🙂
@murtadasadah7044
@murtadasadah7044 3 года назад
Hi brother. Thanks alot for these informations that you gave us. I have problemes in contact penetration between steel surface and concrete surface in clamping fixed support. Can you help me or send your telegram phone?
@simtech0598
@simtech0598 3 года назад
Dear, Telegram group link and Facebook group link available in video discription.
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