ANSYS Non-Linear Stress-Strain Cast Iron Tutorial - Static Structural

why i need to use the commands to get the graph

is there any other way i can get stress or energy graph from static structure on ansys?
sorry i just learn to use this ansys

Hello DrDalyO, I have a question about cast iron model command:
it works fine with compression, but when I try the same command file for tension, it captures only linear region and ANSYS gives error above linear region. The error message is: " Cast iron tension local NR algorithm does not converge for material 1"
I tied small steps, stabilization=on and the warning message disappears but still no plastic region is simulated.
The model is a simple Stress-Strain specimen.
Do you have any idea, how to simulate plastic deformation using different tensile and compression Stress-Strain experimental data? (like cast iron)
Thanks in advance.

please give the link to download ansys manual data

hi Dr, thank you for your videos. I have a question which I still dont get any answers. plz can you tell me how could I  use stress strain curve for compression and tensin using Multilinear isotropic hardening

Hi DrDalyO, I'm trying to run a similar test on basalt fibers, may I know how you obtained the strain equation for your simulation?

I repeated all you that but after made a model an error massage said solver pivot warnings or eror have been encountered during the solution (results of an I'll conditions matrix ) what should I do ?
although I made force and fixed support

Hello dear Dr. Dalyo, thank you for your great efforts! I have a radial turbine rotor, the geometry is a one file contains the blades and the shaft as a one part, I need to calculate the deformation as a result of the pressure distributed over the blades...will I consider the shaft as a fixed support and have I insert the rotating velocity ? Thanks

Dear Dr. Dalyo, if we need to write a command to define unsteady pressure values, how can we do it? Thanks

Hi, what if the material has transversely isotropic behaviour. How can we then input stress-strain data from the tensile testing on the 2 axises (one1 parallel to fibre direction and another perpendicular to fibre direction) to Ansys?

Dear Dr. Dalyo, great tutorial! I was wondering if you have the curve data for class 30 cast iron. Could you send the data to me, please?

Hi, it's good video. I have a query about adaptive mesh region. I want to know that how to apply adaptive mesh region in 3d model. I know there is a option to pick and apply. But when I used to do so , I was getting error like Non linear tetrahedral etc. Also tell me how to change the element type so that I can easily apply it.
Thanks

thank you very much for your help, it's very helpful video thk u :)))))

Can you please send me the command file? As you mentioned multi-linear isotropic hardening model(MISO) in one of your comment. If I add tensile yield and ultimate separately along with stress strain graph through MISO in custom material, then will it cause me any problem? Or does adding stress strain graph automatically defines the tensile yield and ultimate values !!

I can see from the code that you have given "cast" to represent cast iron. But what would be the matid for Aluminum alloy NT? I am using Aluminum 7075 T6 to do uniaxial tensile tests. I am doing tests to break the object, so plasticity comes in.

Excellent tutorial!

thank you for wonderfull vidio its really help me can i get cast iron stress strain data

thank you sir nice explanation
question 1) what is the difference between convergence in 1) solution> (depend what we choose stress or strain) insert> convergence
2) and the convergence you explained.
question 2) about which point convergence occur in 1 case? can we change that point ?

Hi!
do you have any tutorial of how to model a RBS?

I'm just starting out with ansys static structural, and your videos are of great help. So thank you for these great videos! What I want to ask is why is the result for maximum principal stress not symmetric (considering that the compression force is perpendicular to the fixed area)? Is the material property varying across any axis or is it something else? Thanks!

+DrDaylo Thank you for this informative video.
I would like to ask the following queries related to command object which you mentioned in the video;

(1) Why do we need to enter the stress-strain values?
(2) You said to take few data points from the experimental data, why not take whole data points?
(3) Shall we take the points randomly? or should be taken within linear region or non-linear region or both?
(4) Are there any limits for the number of data points which can be used or taken from the original experimental data while entering the stress-strain values in the command object ?
(5) I have data points from experimental curve but the total number of data points are around 460 for compression test of concrete material. Can I directly import the data points for command object from excel?

Hope to hear from you soon
thank you

hello Dr how can i put a quasi static force , help me .

Hi sir please explain how we can input non-linear properties directly in engineering data module and use it for generating non-linear load displacement curve

Thanks a lot for the details.. really helps..

Will the basic material definition becomes irrelevant after using this command?
Where have you specified the "Yield Strength" of the material? When I try to evaluate the Safety Factor, error message comes : "Yield Strength is required but not defined".. can you help?

Any code for model soil / clay ?

if anybody knows ansys workbench please tell me I need help

Really helpful. Can you please share the ANSYS manual link from there you copied the manual material code and Poisson's ratio code?

good job man

You are my hero !!!! this is amazing, Exactly what i was looking for and explained perfectly ! Thanks

First of all Hello Dr. DalyO
I m mechanical engineering student and I trying to understand some things like initial substep, max substep and large deflection, Convergence.. vs . What does it mean ? in the force convergence graphic , despite of you' ve entired 25 maxsubstep analysis ended up at the 22.step.. and let me ask you finally question.What does the initial substep benefit in our analysis? Thank you so much.

is there any way to enter the stress/strain curve directly in Workbench (i.e. not using a command line like you did in this video)

GREAT VIDEO....! This is what i have been looking for....

Hello. If I should check the residual stress/strain in raw cast part, how should I proceed? Should I use fluent too?
thanks.

Hii the video was great. I have a query that how can i find those compression and tension values for aluminium aloy?

Hi. Can you please explain to me how do you determine whether to look at maximal principal stress or equivalent von-mises. If i use material from database Plastic, PA6 do i need to look at maximal principal stress or equivalent von-mises? Same question about strain, equivalent total or equivalent von-mises?
And for stress tool which option should i choose for plastic PA6?

how do you get the commands? by using mechanical ADSL?

Hello Sir, thanks a lot for all the videos, please, l have a specific problem with [ The None Linear Analysis of Steel/Stainless Steel Concrete Filled Tubes under axial compression ], l have tried several times, but failed to get the Strain, Stress and all the Deformation curves, so l will really appreciate any help or any possible videos link, once again, thanks a lot for the good job you are doing

Hello, can you include the geometry file. Thanks

Hello sir, thanks a lot for the good job. I will really appreciate a workbench video of axially loaded concrete-filled stainless steel tubes, I have difficulties finding the deformation curves. Thanks in advance.

Hi DrDalyO if you could share the geometry again will be awesome because the only link we have is for the CODE, thanks for your videos

Great videos ! I'm trying to learn ANSYS as I was trained on ABAQUS, it really helps to see detailed videos like that.
By the way, what does the Safety factor provide?
Thanks

It's very helpful. what parameters i should change the same cast iron to bear more load without failing? thank you!

Hey! can you make video on Ansys commands and where to find them or how to script in Ansys command window.

Excellent !!!

Not updated, not working now

Hello, in the command "tbtemp, 71.6" is the temperature? In compression the results show 6223.6psi compare to limit of 50000psi