@Jacob_22, personally I have not taken any courses on LS-DYNA but rather just struggled through basic examples presented on Youtube and extended that ...

@negativevolume, Yes the long simulation times seem to be a product of a long simulation time (i.e. 5.15s) and a small time step (~1e-6s) from the she...

@negativevolume, I never did figure out how to fix this issue other than changing the part to *MAT_ELASTIC. The only other options that I looked into ...

@negativevolume, thank you for the detailed response and the NASA paper is a great paper on the topic!

@negativevolume oddly enough ls-prepost crashes when I try to use the fringe component "Ndv" for my ALE model. What I have found is that if I just add...

@negativevolume Good to know! If I was not clear I meant changing the falling debris to *MAT_ELASTIC and keeping the plate as *RIGID_WALL_PLANAR. The ...

What ended up working was setting in the CONTROL_CONTACT card RWPNAL = 1.0, this only works if the RIGID_WALL_PLANAR card is fixed in space.

Typically I have seen this error for clusters when you don't specify enough RAM, I know for my MPP simulations I set Memory = 500M and Memory2 = 500M ...

One of the key factors with the SPH model is particle spacing. I cannot speak to your simulation specifically but for dam-break wave generated impacts...

@csuznxg not luck getting the SPH_INJECTION card to work. I ended up not using it but I will be circling around back to this problem in the near futur...

@negativevolume Currently I don't care about the response of the debris but we are trying to investigate the impact force it generates on a structure....