ruptured material

[Fra22Pul]

Good morning, in my exploration of patran-nastran I am trying to solve a problem that seems complex, I wanted to ask if someone can help me and understand if this problem is solved.
I am trying to shape a bullet that pierces an aluminum plate; I used a sol400 and set an elasto-plastic material with a maximum stress failure criterion. I assigned the bullet an initial speed. I then set a contact condition for the two bodies and set the master/slave conditions. performing the analysis however what happens is that the plate is not perforated (as I would have expected, since the literature with my plate thickness and the speed set I have drilling) but the bullet deforms the plate and then bounces back, despite the tensions on the plate are higher than those I set for failure.

igo model image and bdf file

I therefore wanted to ask if it is possible to eliminate the elements that fail during the simulation or if this problem is not solved.

thanks in advance

 

[Fra22Pul]

allego il bdf

 

[hectorv182]

Good morning. I'm trying to do something like that. I wanted to ask if you could teach me how to do the simulation you're trying to do. because as far as I know you may have set the proittile as a surface and not a solid, the plate is too elastic.
Good day

 

[Onda]

I would say that it is an analysis to set with the sol700, explicit. and not with the 400 that is an implied solutor. Perhaps in recent years the implied have improved so much, as well as the power of computers, but remains a typical problem for explicit solutor.

 

[hectorv182]

I would say that it is an analysis to set with the sol700, explicit. and not with the 400 that is an implied solutor. Perhaps in recent years the implied have improved so much, as well as the power of computers, but remains a typical problem for explicit solutor.

kindly, I am trying to make a simulation that more or less has the characteristics of the pile that meets a body. I want you to teach me how to do it, even for a fee.

Thank you.

 

[Onda]

kindly, I am trying to make a simulation that more or less has the characteristics of the pile that meets a body. I want you to teach me how to do it, even for a fee.

Thank you.

I don't write here to acquire customers.
the fact is that a bullet hitting a body is to be simulated with a very low time frame and typically is a type of analysis that should be done with an explicit solutor in the msc world is the sol 700. I, unfortunately, am not a student, I do not have in my licenses this solutor so I could not even run the simulation myself. looking on interner with the right keywords, like "explicit analysis bullet" or things like that, you find so much material. Then, if there's a problem, we're going to put in the forum the demands and try to understand together.
Last but not least, I've seen that you've been registered for a long time, but that you've never made a presentation, go to the appropriate section and make a nice message, where you tell us who you are and what you do!
Thank you.