#19 ABAQUS Tutorial: Modeling Bolt Pretension in Static Analysis

[@MrAhmedzand]

thanks, Dr. Ahmed for the amazing explanation series of the ABAQUS tutorial series

[@milanias]

Thank you Dr Elkady. It would have taken me hours (if not days) to figure out this by myself.

[@1p1p3p4p5]

your like blender guru but an abaqus version. such a legend!

[@sepehr2012]

Thank you for the detailed explanations. Looking forward to watching the video about other methods to apply Bolts pretension and in other solvers.

[@a.b.s.r1168]

Thank's Dr.ahmad alkady the very very nice theaching🤲🙏

[@rashmigopalan4686]

Thanks for making a detailed video series Dr. I have a query, can one input bolt stiffness in ABAQUS

[@sohinimishra9202]

Hello Dr Ahmed , thank you for this nice and very helpful video on bolt pretensioning. Could you please also make and share a video about how to apply the pertension load using the explicit solver? As you mentoined in this video that there is a way by adding a temperature gradiant? Many thanks!

[@joaosousa5778]

I was a bit confused in the load manager part. Maybe becasue of my own compreenhsion or were there some mistakes in phrasing? found it confusing, if someone could clarify it for me please. I don't know if i should put propagated or fix the bolt lenght.

[@eng.khaledmahfouz5403]

Thanks a lot Dr.Ahmed for Abaqus vedios Now i am facing a problem (Unable to start analysis job) How to solve it plz Thanks a lot

[@faroqrjoub2696]

If I choose to use the Adjust Length method to pretension the bolts, How do I determine the value of length to use ?? I hope you respond to my comment. Thanks

[@joaosousa5778]

Don't i need to define any interaction of the bolt to the other part?

[@benmeloukaabdelkader737]

Thank you sir, you are the best. ma cha allah.

[@mkabconsultingengineers4329]

how to apply bolt pretension in abaqus explicit

[@JayShah-yn3eb]

Wonderful video series. I am trying to model a system of two mild steel plates tightened with a 8.8 grade bolt. I am having some challenges with excess deformations. Hope you can help. Currently i fixed the ends of the two plates with ENCASTRE BC and applied bolt preload. First i tried applying ZSYMM boundary conditions at the top and bottom surface of the bolt, later on I applied ZASYMM boundary condition, it didn't work either. These BCs i applied were based on many other similar youtube videos. Any suggestion would be appreciated!

[@BillySnowball]

Good stuff, thanks for posting

[@laurensiusivan6450]

Sir, i already follow all your instruction but my analysis shown some error: in keyword *CLOAD, file "Job-Pretensioning.inp", line 151839: Unknown part instance set BOLT1."_Bolt Pretension Load_blrn_" in keyword *CLOAD, file "Job-Pretensioning.inp", line 151839: Unknown part instance set BOLT2."_Bolt Pretension Load_blrn_" in keyword *CLOAD, file "Job-Pretensioning.inp", line 151839: Unknown part instance set BOLT3."_Bolt Pretension Load_blrn_" in keyword *CLOAD, file "Job-Pretensioning.inp", line 151839: Unknown part instance set BOLT4."_Bolt Pretension Load_blrn_" in keyword *BOUNDARY, file "Job-Pretensioning.inp", line 151876: Unknown part instance node set BOLT1."_Bolt Pretension Load_blrn_" in keyword *BOUNDARY, file "Job-Pretensioning.inp", line 151876: Unknown part instance node set BOLT2."_Bolt Pretension Load_blrn_" in keyword *BOUNDARY, file "Job-Pretensioning.inp", line 151876: Unknown part instance node set BOLT3."_Bolt Pretension Load_blrn_" in keyword *BOUNDARY, file "Job-Pretensioning.inp", line 151876: Unknown part instance node set BOLT4."_Bolt Pretension Load_blrn_" NODE SET ASSEMBLY_BOLT1__Bolt Pretension Load_blrn_ HAS NOT BEEN DEFINED NODE SET ASSEMBLY_BOLT2__Bolt Pretension Load_blrn_ HAS NOT BEEN DEFINED NODE SET ASSEMBLY_BOLT3__Bolt Pretension Load_blrn_ HAS NOT BEEN DEFINED NODE SET ASSEMBLY_BOLT4__Bolt Pretension Load_blrn_ HAS NOT BEEN DEFINED NODE SET ASSEMBLY_BOLT1__Bolt Pretension Load_blrn_ HAS NOT BEEN DEFINED NODE SET ASSEMBLY_BOLT2__Bolt Pretension Load_blrn_ HAS NOT BEEN DEFINED NODE SET ASSEMBLY_BOLT3__Bolt Pretension Load_blrn_ HAS NOT BEEN DEFINED NODE SET ASSEMBLY_BOLT4__Bolt Pretension Load_blrn_ HAS NOT BEEN DEFINED NODE SET ASSEMBLY_BOLT1__Bolt Pretension Load_blrn_ HAS NOT BEEN DEFINED A CONCENTRATED LOAD HAS BEEN SPECIFIED ON NODE SET ASSEMBLY_BOLT1__Bolt Pretension Load_blrn_. THIS NODE SET IS NOT ACTIVE IN THE MODEL NODE SET ASSEMBLY_BOLT2__Bolt Pretension Load_blrn_ HAS NOT BEEN DEFINED A CONCENTRATED LOAD HAS BEEN SPECIFIED ON NODE SET ASSEMBLY_BOLT2__Bolt Pretension Load_blrn_. THIS NODE SET IS NOT ACTIVE IN THE MODEL NODE SET ASSEMBLY_BOLT3__Bolt Pretension Load_blrn_ HAS NOT BEEN DEFINED A CONCENTRATED LOAD HAS BEEN SPECIFIED ON NODE SET ASSEMBLY_BOLT3__Bolt Pretension Load_blrn_. THIS NODE SET IS NOT ACTIVE IN THE MODEL NODE SET ASSEMBLY_BOLT4__Bolt Pretension Load_blrn_ HAS NOT BEEN DEFINED A CONCENTRATED LOAD HAS BEEN SPECIFIED ON NODE SET ASSEMBLY_BOLT4__Bolt Pretension Load_blrn_. THIS NODE SET IS NOT ACTIVE IN THE MODEL A BOUNDARY CONDITION HAS BEEN SPECIFIED ON NODE SET ASSEMBLY_BOLT1__Bolt Pretension Load_blrn_ BUT THIS NODE SET IS NOT ACTIVE IN THE MODEL A BOUNDARY CONDITION HAS BEEN SPECIFIED ON NODE SET ASSEMBLY_BOLT2__Bolt Pretension Load_blrn_ BUT THIS NODE SET IS NOT ACTIVE IN THE MODEL A BOUNDARY CONDITION HAS BEEN SPECIFIED ON NODE SET ASSEMBLY_BOLT3__Bolt Pretension Load_blrn_ BUT THIS NODE SET IS NOT ACTIVE IN THE MODEL A BOUNDARY CONDITION HAS BEEN SPECIFIED ON NODE SET ASSEMBLY_BOLT4__Bolt Pretension Load_blrn_ BUT THIS NODE SET IS NOT ACTIVE IN THE MODEL NODE SET ASSEMBLY_BOLT1__Bolt Pretension Load_blrn_ HAS NOT BEEN DEFINED NODE SET ASSEMBLY_BOLT2__Bolt Pretension Load_blrn_ HAS NOT BEEN DEFINED NODE SET ASSEMBLY_BOLT3__Bolt Pretension Load_blrn_ HAS NOT BEEN DEFINED NODE SET ASSEMBLY_BOLT4__Bolt Pretension Load_blrn_ HAS NOT BEEN DEFINED Analysis Input File Processor exited with an error. Can you help? Thank you 🙏

[@CP-zi3eg]

Very instructive video,thank you. I would like to ask if it'possible to apply pretensioning using Interaction, e.g. Coupling or similar, in place of the real bolt geometry. This could avoid a long assembly work in case of large number of bolts

[@AElkady]

Yes it is possible, for example, by modeling a link element that can be subjected to a thermal load to apply pretension.

[@tinkatul]

Hi, how do you do? I would like to ask for a problem solving in Abaqus, that I haven’t been able to find in the web in general nor in YT. The statement of the problem I’m looking for is a pretty common one I guess, and it is a structure with a pre-tension in the cables, such as in a cable bracing or the ropes for stabilizing an antenna mast. The most similar thing I’ve found is bolt force, or node displacement in an intermediate step, or cooling a part of the wire as a step, but it’s not what I’m actually trying to simulate. Nor is the prestressed of wires in concrete. Any help on the matter will be appreciated. Thanks in advance.

[@benmeloukaabdelkader737]

All steps was normal , but after i click in continue at 9.25 , i have not the same message like you , i receve directly the message in 9.46 , i click Surfaces in the right , i follow you, but juste i click continue like you in 10.27 ; i receved a message (( select a datum axis that is aligned with the bolt centerline)). Please where is the problem?

[@vineethbandari4946]

Sir I would like to ask is it possible to create a pin joint in abaqus by using create fasteners or by any of the create constraint, without modeling bolt ?

[@lintapaul3108]

Sir can we provide bolt pretension in bolts modelled with shell elements Please reply

[@InnerVoiceofthepeople]

Hi sir, how to apply bolt preload using abaqus explicit step

[@monte0682]

Hello can you share you Abaqus file?

[@AElkady]

Unfortunatly, the file is no longer available. Please follow the steps to achieve the same results.