Cantilever beam simulation tutorial with crack propagation using Xfem method

[@swag_rabbit4593]

Cool XFEM simulation for 3D model. Is this a cohesive segment or LEFM approach?

[@visvaksenaarumugam8367]

I have a doubt, sir, will I be able to simulate a crack with 2 objects, one embedded inside another in XFEM Method?

[@suryaprasanthmuddana7038]

I am not getting crack propagation using direct cyclic...what to do..

[@pratikshapinjarkar8575]

Can you do the simulation for shaft with a surface radial crack subjected to torque

[@iiKADz]

Is 4200 N/m reasonable for the fracture energies?

[@pratikshapinjarkar8575]

Can you do radial crack propagation for solid shaft using xfem?

[@imdadimmu8741]

Very helpful video

[@祝越]

Hello, could you please tell me how to get the relevant output of XFEM crack propagation?Such as stress intensity factor, crack length, etc

[@giangvu6712]

hello, have you found it yet?

[@aokizyo9345]

Hi! Just a bit of confused about the Max Principle Stress. The Young's modulus you input is 300e9 (300GPa), but why the MPS is only 100 (Pa)? Thanks!

[@vineeth9295]

Good Observation Aoki Zyo , I checked the simulation and in that I used Maximum Principal stress as the failure criteria with value as 100 Pa and keeping Youngs Modulus of steel as 200Gpa. The MPS value should have been kept as the yield stress of the steel somewhere around I think 250 Mpa according to MPS criterion. The value 100 Pa was assigned so that crack could propagate easily.

[@rahulsrivastava511]

Aoki Zyo ..

[@kaveeshashamainpeiris7669]

Hello Vineeth! can i use this same process to make a crack in a concrete cube? I mean without fixing one side

[@vineeth9295]

You have to give atleast one dirichlet boundary condition

[@kaveeshashamain6856]

Thank you for replying sir, and isn’t there a way to make a crack without fixed boundary condition in abaqus?

[@vineeth9295]

As you are talking about tube the length will be large, so try to use plane strain condition and check

[@carlosfelipegomezflorez1145]

Hi Vineeth. Do you know how to model the permeability?

[@vineeth9295]

I am not sure but Permeability means ability of fluids to pass through. So will the usage of membrane element help? Edit: Just guessing

[@HamzaDjeloud]

How do I plot XFEM crack propagation

[@carlosfelipegomezflorez1145]

Finally @H djelloul , do you know how to plot XFEM crack propagation?

[@abdullaha2915]

Thanks for sharing this, have you done smeared crack model in Abaqus? or know where I can find full detailed model for this?

[@vineeth9295]

🙋‍♂I think you can find research papers of smeared crack model and based on that you can perform the simulation🙌

[@abdullaha2915]

@@vineeth9295 I did find some! but inserting the data in Abaqus is different from theory .. I was hoping to see someone did it in Abaqus.. I have the data in theory ready.

[@imdadimmu8741]

I want to learn Abacus software related to my research work my topic is Fatigue behaviour of headed stud shear connectors in steel concrete composite beams

[@omidziaee94]

Thanks for this video. I've got into a problem when trying to recreate this example. When I try to submit the job, an error pops up saying that there isn't a section assigned to the crack part. Any idea how to solve this?

[@vineeth9295]

I think section assignment is not done

[@NikitaKaminskyy]

It's just a warning that you can ignore

[@omidziaee94]

@@NikitaKaminskyy That's right, thank you.

[@carlosfelipegomezflorez1145]

Hi Vinneth, I have a question about the units. When you write the Young's Modulus in what units are they or in what system of measurement is Abaqus?

[@vineeth9295]

Youngs modulus is in N/m^2

[@carlosfelipegomezflorez1145]

Thanks Vineeth.

[@biswabhanupuhan7036]

"the following parts have some elements without any section assigned ", this error is coming for the crack plane, can you please suggest why? And how to solve it.

[@vineeth9295]

You need to assign section the crack geometry

[@biswabhanupuhan7036]

Hello@@vineeth9295, thank you very much for this quick reply, It is not happening, idk why. If I carefully watch your video at 3:38, you assigned only to the cantilever beam, if I am not mistaken but did not to any crack plane. Even if I am doing a manually it is asking for thickness, with any thickness it is giving an error as 'Too many attempts made for this increment.

[@vineeth9295]

@@biswabhanupuhan7036 Hey , While making the part for the crack did you select " Shell" And extrusion 1:17

[@biswabhanupuhan7036]

@@vineeth9295 yeah exactly same

[@abaqususer8650]

I am getting error of ***ERROR :too many attempts made for this increment. Please help me how to resolve it.

[@vineeth9295]

I think meshing is the problem, please check the whole video once again

[@43310001]

How to model a crack pattern for wall with openings

[@vineeth9295]

Just make three domains by using partition cell

[@imanaghayi9973]

nice

[@eloualidchakir45]

Thank you so much

[@carlsavage3946]

awesome video.

[@imdadimmu8741]

Very helpful video