@negativevolume I used the Define_curve and defined a curve of stress vs strain and assigned it to the mat piecewise plasticity, I also added the dat...

@negativevolume Yes, I have added mat_add_erosion, but the elements did not delete, I could not figure out why

@negativevolume The PMMA, it should have a hole when the bullet pass through it , but it is not visible in my case

@negativevolumethis is the link to the paper that I am modelling. By the way i have managed to get the results which is almost similar but just that t...

@icebreakersours I don't think the paper has a mistake, but there might be other sources that made my simulation wrong. I am still looking out for pos...

@negativevolume Yes I have already tried the options from the first link and the second link, but still did not manage to get the simulation done. I...