What a powerful tool to automatically converge the mesh! I'm used to manual mesh convergence studies in proprietary solvers / old school Nastran where you just have to do it over and over again. This has certainly come a long way (have been doing FEA for 15 years)
@MohammadAlzahraniii Жыл бұрын
Ok, that's what you got from PHd holder. Explained the concept behind every single click on that software. Thank you.
@Ans_aka_Inzi10733 ай бұрын
That's an amazing lecture! Everything was explained with great proficiency.
@ShauryaRaikkonen2 жыл бұрын
What an awesome lecture! Thanks a lot from Wisconsin.
@bradd884122 күн бұрын
Nice video sir!! Thanks
@kobidkunwar1807 Жыл бұрын
Thanks Dr. Brock Hedegaard
@lucasauerdearaujo52342 жыл бұрын
Excellent lesson! Congratulations and thank you so much!
@StructuresProfH Жыл бұрын
Thank you! I'm glad I could help.
@proticchobi9602Ай бұрын
Well explained. Just a small error, the solve doesn't occur at nodes it occurs at a point inside the element which is called integration point and then its extrapolated to the node.
@StructuresProfHАй бұрын
First, thanks for watching! It is a bit more nuanced than just saying everything happens at a node or integration point (I was trying to keep it simple). In the context of elasticity, the typical finite element formulation constructs the solution from nodal displacements that are interpolated over an element using shape functions. Integration points are used with these shape functions for the construction of the stiffness matrix, essentially turning a kind of energy minimization problem over a volume (requiring integration over that volume) into a set of algebraic equations. Once we reduce the problem to a system of equations in the form of Stiffness*Displacement = Force, we solve for the displacements, and these quantities reflect nodal displacements. However, the strains and stresses that we derive from these displacements (because they come from derivatives of displacement which depends on the particular choice of shape function) are NOT nodal values. This means it is correct to say, as you have done, that the stress and strain solutions are evaluated at the integration points and then extrapolated to the nodes, but at the same time the displacements themselves are nodal quantities that are interpolated throughout the element.
@mohsenshamsi5915 ай бұрын
Hi, I'm sorry. I had a question, if it's possible, please guide me. I have a circular geometry (pipe) inside the Ansys Machining software. I want to make a layered mesh, how is it possible?
@farhangymnastiar6967 Жыл бұрын
i got an error, "A failure occurred inside the mesh refinement module.". what i supposed to do?
@fardin5059 Жыл бұрын
Hi profesor and thank you for the tutorial; I have a problem that you may know the solution; I want a .ans file to use in autodesk moldflow but I didn't figure out how to export a .ans file from ansys meshing workbench. May you help?
@syl180ther8 күн бұрын
Hi, in the version ANSYS 2024 R2, i uncunter those two errors ans the model don't work. -Warning:Unknown parameter name= CONC. A value of 7.888609052E-31 will be used. -error: 0 is not a valid type ID number. Type ID number must be a positive integer. The KEYOPT command is ignored. In the 2024 R1 i didnt have those errors Thanks for what you are doing thoses are nice explicative videos
@StructuresProfHКүн бұрын
It's tough to diagnose what is wrong here just using your error message, but my guess is that you did not define CONC higher up in the model. It could also be something weird going on in 2024 R2 (I don't have that version, so I can't easily check that...) Anyway, try creating a material assignment in the Materials section of your model tree. Select whatever geometry you want to have the material for CONC for the scoping method, then give it some arbitrary material assignment. Preferably, for sake of organization, give it a unique material that you are not using somewhere else in the model, but it doesn't matter what the material properties actually are because we will change all that in the APDL script later. Finally, create a Command for that material assignment (right-click on the material assignment and Insert >> Commands). The only line of code you need in this command is... CONC = matid That should create the CONC variable and set it equal to the material ID of the material assignment you just created. Now when you use CONC in later commands, it knows that it should only apply to that specific material ID.
@rezaahmadi1492 Жыл бұрын
hi prof, thank you for your helpful video, do you have any video for stress concentration factor calculation in ansys?
@durgeshpandey7097 Жыл бұрын
hi
@fabioribeiro2480 Жыл бұрын
Still helpfull, Thanks :)
@anilwins6415 Жыл бұрын
thankyou man
@loveparfum Жыл бұрын
this was super helpful! thank you! but i still haven't solved my problem ahhahaha
@StructuresProfH Жыл бұрын
Well, I'm glad it helped in some way, even if I didn't answer your question. Good luck with your modeling!