So I’m trying to do a simulation where a knife model stabs a softbody and then blood comes out from the softbody. I have scoured the internet for a couple hours trying to find a tutorial to teach me how to do this, but I haven’t found anything. Right now I’m just trying to stab the softbody but it just stretches and never tears. How can I get it to rip? Thanks!

Maybe you can modify Mikael's, tutorial for water balloons.
https://www.sidefx.com/tutorials/simple-vellum-water-balloon-set-up/ [www.sidefx.com]

Okay I’ll try that. Thanks!