Friction stir welding simulation in abaqus using Coupled Eulerian Lagrangian CEL method Part 2 of 3

[@danielelamia5761]

Great video, I havo only one question: why are we defining the pressure BC on the tool in min 7:11, while defining the speed in min 9:14? in this way the speed control may overwrite the pressure control making it usless, don't it? also in min 9:14 the V2 is set to 6, shouldn't it be set on -6? thanks very much

[@Abaqus-Tutorials]

Pressure implies the applied force. In addition, velocity is required to refer downward movement

[@danielelamia5761]

@@Abaqus-Tutorials ok thanks What about the V2 sign?

[@sandeepkumarparal]

thanks for your detailed FSW video. Why do you take 2 different film coefficient values for the bottom and all other surfaces? Please try to clarify. Thanks

[@sahilgupta9675]

Why don't you assigned section property for w/p , only eularian part and tool only. 15:05

[@Abaqus-Tutorials]

The assigned property is for workpice, assigning eulerian mean w/p

[@sahilgupta9675]

Did you create more partitions because I can two see partitions On the top. How do you created that.

[@Abaqus-Tutorials]

do by sketching line fisrt

[@panagiotisraptis8005]

Also, V2 speed during the plunging step shouldn't be -6 because the tool moves downwards in the y axis?

[@Abaqus-Tutorials]

downward movement is equal to the distance between tool and workpiece plus expected penetration. Already you know the distance when you assemble

[@Ajrecites]

What are all the changes can I make for Rotary friction welding by referring this video?

[@panagiotisraptis8005]

Hello, thanks for the tutorial. Can you explain how did you do the partitioning? Also why the parts appear to be the same size when the eulerian is 7mm and the Wp is 3mm (thickness)?

[@Abaqus-Tutorials]

partition is done by drawing line on one sarface

[@trangoctienat7657]

Hello sir, thanks for the helpful tutorial. I have a question about BCs you assigned for the Tool, the rotation speed is 500 radians/time. It means the speed is appox 4777 rpm. Is this right?

[@happyus9285]

I need some help regarding this type of simulation. Do you help others regarding simulation?

[@duniaffarooq]

What is the Element Type for the Tool? Is the Tool Geometric Order Linear or Quadratic? and what is the Family? is it Coupled Temperature-Displacement or what? Thanks

[@Abaqus-Tutorials]

Create a tool as 3D, deformable. The geometric order is linear and the family is Coupled Temperature-Displacement.

[@collectt]

Sir, if we use two different types of wp material, supposed Al5000 and Al6000 series, then what will be the eulerian part material, or what will be the base material for eulerian part 15:03 ? Sir Please Reply

[@Abaqus-Tutorials]

Properly make a partition for both eulerian and langrangian. First create different material properties i.e, Al5000 and Al6000

[@collectt]

@@Abaqus-Tutorials sir done, bt for eulerian portion which type of material assigned ?

[@aadiptaghosh8261]

I am doing the analysis in ansys workbench.. However there are large deformations getting recorded and the fsw tool gets stuck in between and does not traverse the whole length. What could be the possible reason?

[@Abaqus-Tutorials]

I recommended you, to increase the transverse length

[@NoName-qt2ly]

Did you got it? I am also facing same issue. Please help

[@uppurohan1988]

I am doing a similar FSW simulation but in results i am not getting deformations on the plates like grooved created by rotating tool, etc. Can you tell what might be missing? Also i gave plate material type as deformable. Do i have to use eulerian?

[@Abaqus-Tutorials]

Eulerian best for large deformation. It may due to material property or tool rotation

[@MEBMDKASHIFRAZA]

Great video sir, Had one confusion, at the end of first tutorial we had Partitioned cell in wp and eul. But here at starting there are more partitioned in each of them please explain this It will be very helpful

[@Abaqus-Tutorials]

do the same procedure to partition

[@usmanubaid9845]

Why we use coupled eularian-langragian domain ?

[@Abaqus-Tutorials]

To control mesh distortion and ensure accuracy

[@Romiresz]

First of all thank you for the tutorial. But can you tell which time the simulation took in your case. On my computer with license on 4 cores only after 3 days I have just 0.76 process time finished.

[@Abaqus-Tutorials]

It Must be finished in 3 days. Actually, it depends on computer, not only ram, cpu, ..., but if the computer processer runs a number of program at the same time, it will delay

[@조덕상-f8j]

Thanks for the helpful video. However, I have one question. There is no section designation on the workpiece, but if the section designation is not done, an error occurs. How did you designate the sections in this analysis?

[@Abaqus-Tutorials]

I will post video regarding to this

[@조덕상-f8j]

@@Abaqus-Tutorials Thank you for response. When it will be uploaded?

[@lutfilhadi4841]

sir can i ask on how to change the feed rate ?

[@Manojain6122]

Sir why did you set V2 as 6 shouldn't it be -6 downward

[@Abaqus-Tutorials]

That is indentation by considering lagragian thickness

[@anoopnn3319]

Hello, kindly need your suggestion... the CEL technique seems to be too expensive computationally.. How did you tackle reducing the computational time?

[@Abaqus-Tutorials]

Ofcourse, it need much time to complete the analysis. Try to use appropriate mesh size, sure material property and increase your computer RAM, if possible

[@bearlittle9732]

Hello, there is a big flaw in my simulation, which is a gutter in the weld.

[@Abaqus-Tutorials]

This happen when the applied pressure is high or penetration of tool probe is high, so manage those parameters

[@oumaimatrad1915]

iS THIS A LAP JOINT CONFIGURATION PLEASE?

[@Abaqus-Tutorials]

No, it is butt joint

[@darshpatel8173]

Sir this video is very helpful. Can you share .cae file for reference. Please hope you reply soon. Thanks 🙏🏻