Ansys bullet simulation tutorial

[@dasdeutschesaxophone]

What about one where a t-34/85 drives headfirst into a wall and it's gun barrel hits the wall? We can see how the barrel deforms and whether it actually causes significant damage. This was also in the scene of a movie if I recall correctly

[@javelin2811]

M1A2SEPV4 firing the latest M829 at Iowas outer belt at 1000m. For reference outer escaping belt is 1.5 inches of STS several feet of distance then another 2 inches of structural Steel bracing, 12.1 inches of Class A armor at 19 degrees on top of .875 or 1.5 inches(sources vary) of STS also Angled at 19 degrees.

[@E-glue]

This isnt actualy as hard as i tought it was but it still has few steps thanks man!

[@ToastRepublic]

No problem, let me know how it goes, and if you have any problems.

[@E-glue]

@@ToastRepublic I had a probem with ansys but i reinstalled it and it works now the only problem is my bad laptop but im getting a new and better pc in less than a month so i can do it faster. thanks again

[@ToastRepublic]

@@E-glue glad to hear that, you got it working.

[@E-glue]

@@uusfiyeyh ? Tank is a heavily armed and armoured combat vehicle that moves on two endless metal chains called tracks.

[@E-glue]

@@ToastRepublic Watching it on a new computer im going to tell you how it goes

[@alexandresajus]

Incredible video! Very easy to follow, thanks a lot!

[@enb3810]

That is super cool. I do kinda wish it wasn't such a long and clunky prosses, but thanks for showing us either way.

[@adityakailash4264]

Takes about 10 mins tops if you've already designed your part to test

[@Horizon_Systems]

Underrated channel. So my shell isn’t moving, any idea why?

[@ToastRepublic]

Did you select all of the parts of your projectile, and apply that geometry to the velocity?

[@3Dforensics]

Thank you for making this video. I was looking for something like this a couple of years ago and thought I would check again…bingo! I do plan to try this very soon. Is there any way to reach you for some additional information?

[@ovhgermany9958]

Thank you so much

[@ToastRepublic]

No problem happy to help.

[@colbysteelers15]

Hell yeah nice to know

[@kakaman2992]

yes sir fire video btw mine says it will be done in 3000 hours 💀( dont worry fixed it)

[@ToastRepublic]

glad to see you fixed it, yeah sometimes those render times can take a bit.

[@kakaman2992]

@@ToastRepublic yeah i accsidently put it to 4 seconds insted of 0,0004

[@I22306]

Ayo just got the notification))

[@NonSi_]

Thanks you amazing)

[@ToastRepublic]

No problem man

[@domingos8214]

hello, could you do a simulation of HEAT penetrators?

[@ToastRepublic]

HEAT is something I'm looking into, but i cant seem to get it to work properly at the moment.

[@raiden542]

Its saying that the time steps are too small. Can you help? Its also giving me just 2 frames of the animation.

[@ToastRepublic]

I get those a lot, sometimes lowering the mesh size can help, I've looked up how to fix that issue before but i don't get any helpful results. Most say to change the minimum time step in the analysis settings to a really low number instead of program controlled but its never helped that issue for me.

[@raiden542]

@@ToastRepublic i figured it out, i did the opposite, increased the mesh size and it worked. ill try your method.

[@ToastRepublic]

@@raiden542 ok good, yeah I forgot to mention that increasing can help, it just depends on if it effects your model.( like messing with a bullets copper jacket or something)

[@raiden542]

@@ToastRepublic i never added a copper jacket, how is that done?

[@ToastRepublic]

@@raiden542 If you are making your own bullet in freecad, you can use the offset tool to make one.

[@bronson2585]

Thanks for the tutorial. One problem I’m having is the project tile flies the wrong way no matter what I do

[@ToastRepublic]

Interesting, can you tell me what you have tried so far, and maybe I can help you with this.

[@bronson2585]

Nvm I’m dumb the projectile was just bouncing back 😅

[@ToastRepublic]

@@bronson2585 😂 well I'm glad you figured it out.

[@aplanenerdandagamenerd9087]

For some reason I can’t get a smooth animation like yours, it kinda just snaps to the end result

[@TumbleTrashOfficial]

this is all there is too it? intereting, thought it would have been deathly difficult

[@ToastRepublic]

Yep, only thing that's difficult, is sometimes the few hours you might have to wait.(depending on the size of the simulation but still it's annoying)

[@adityakailash4264]

In my simulation the projectile just bounces off the armor it doesnt smash not even if i use weak materials ?

[@LavaDa1shi]

is there a way to how it half open so when the shell goes inside you can see what's happening inside the metal

[@chocolatemilk457]

My mesh wont apply, its saying the mesh wont generate due to poor quality elements or incorrect input

[@ilikecake283]

Followed this tutorial but neither my bullet or my wall deform and the bullet just flies back

[@ToastRepublic]

Sounds like its just ricocheting back, so I have 2 questions are you using the default material? usually the default is structural steel which isn't good for ,these types of simulations. 2nd question, how fast is the projectile going?

[@ilikecake283]

@@ToastRepublic For my wall i am using concrete and the projectile is going 936metres per second also i get an error saying energy error too large

[@enb3810]

Hm, I made my own geometry with inventor pro but it's not letting me select the outer edges of the armor plate model, only the entire thing. edit: nevermind it was because i was on 'body' selection instead of face

[@BeanzWarThunder]

at 6:07 when the mesh progress starts it wont show the mesh and after that wont let me select a geometry for the velocity? why? Edit: i got the velocity in and started the solution but it wont show anything

[@al7bndgsh706]

you should tap "generate mesh" at the mesh tab next to update mesh

[@carbon5412]

for some reson mine isn t smooth i mean therea are like only 5 frames and i don t see exactly what is hapening

[@the_bread_bandit1117]

How do i fix the mesh element size from m to mm?

[@choporo2005]

My bullet just bounces back all the time, what did I do wrong?

[@al7bndgsh706]

Hi could you tell me what is the file format of the projictile when you put it in freecad?

[@ToastRepublic]

Sure, when I make projectiles I save them as a step file. And when I import or add objects to my projects, I always use step files.

[@al7bndgsh706]

@@ToastRepublic One more thing, when the sim finshes the number of frames is very low and it says "time step is too small" how can I increase it and the frames? btw thanks so much for the reply.

[@ToastRepublic]

@@al7bndgsh706 No problem, when it comes to the time step, mess with the mesh size, increase or decrease it.That can fix it, but it would depend on the size of the simulation, making it too big can mess with the models too much, too small can cause more errors or long render times.

[@alphaindustries5775]

What’s the best way to increase simulation accuracy (make it looks less blocky). Should I just make the element size smaller?

[@ToastRepublic]

increasing the mesh size will help mitigate the blocky look, however this will add more time to your simulations, and there is a limitation on how small you can go in the student version.

[@pedrorodriguez2489]

Any way to increase the total simulated time while keeping the same cpu working time for slower speeds aplications? I mean some sort of increasing the iteration time difference

[@kikiraindeer7782]

typing step brings errors

[@raiden542]

Q: can my Intel Pentium with no GPU do this?

[@ToastRepublic]

I guess, but I would not recommend that because it would slow to render.

[@raiden542]

@@ToastRepublic I don't care about render time, wish me luck.

[@raiden542]

@@ToastRepublic it works but one issues. Its saying that the time steps are too small. Can you help? Its also giving me just 2 frames of the animation.

[@enb3810]

Damn, did everything you did but am getting 3 errors on trying to run it. EDIT: My "End time" had one too many zeros. This program sure isn't designed to be intuitive huh? Useless ass error messages. "The result file cannot be opened." "Current result file may not contain requested result data . Please clear the solution and solve again." "An error occurred when the post processor attempted to load a specific result. Please review all messages."

[@tutorydean8867]

my frecad software had no option to save it as a step file and when i changed it it was an unstable file. how do i fix this? edit: im in the file thing but nothing is showing up edit2:i pressed ctrl+s instead of exporting.

[@MateChulo00]

You have to Change Contact Conditions and Material Failure Yes, thats a very poor sim