Kind of strange to see that there is a big clump of mass just flowing to the right and not trying to return to original configuration. I'm guessing some of that energy is inelastically transferred into the structure by making the atoms bond closer?
Indeed I think the dynamic reconfiguration breaks the conservation of energy, because I had to reset the equilibrium spring lengths, to avoid instability. Some forthcoming simulations will use extra conditions on reconfiguration, such as minimal and maximal distances. But energy seems to still be lost, which leads to plastic deformations.
@@NilsBerglund Another possibility to consider might be limiting the bonds to the four neighbors with the lowest potential energies, and/or introducing a four-fold symmetric potential like V = k e^(-r) sin^2(2 theta) on top of the Leonard-Jones potential. 🤔
Yeah, I'm not sure what happens there. It could be that the number of neighbors used to compute the interaction changes at that time, causing an instability.
Kind of strange to see that there is a big clump of mass just flowing to the right and not trying to return to original configuration. I'm guessing some of that energy is inelastically transferred into the structure by making the atoms bond closer?
Indeed I think the dynamic reconfiguration breaks the conservation of energy, because I had to reset the equilibrium spring lengths, to avoid instability. Some forthcoming simulations will use extra conditions on reconfiguration, such as minimal and maximal distances. But energy seems to still be lost, which leads to plastic deformations.
I guess the analogue of work-hardening? Seems like it would be a similar phenomenon. Not sure tho
Could be. Maybe the next few simulations in this series will give you more context.
@@NilsBerglund Another possibility to consider might be limiting the bonds to the four neighbors with the lowest potential energies, and/or introducing a four-fold symmetric potential like V = k e^(-r) sin^2(2 theta) on top of the Leonard-Jones potential. 🤔
Thanks!
Seems like some sort of bug occurs at 1:29?
This system is reminiscent of collision cascades in sputtering.
Yeah, I'm not sure what happens there. It could be that the number of neighbors used to compute the interaction changes at that time, causing an instability.
0:09 me when its delivery
He really did it. Nice!
I dont understand whats going on but it looks interesting!
How close do you feel is your code of simulating a p-n diode?
Haha, plinko.