Molecular dynamics study of the shock response of polyurea

We leverage the phase segregated microstructure of polyurea to study its shock response using molecular dynamics (MD) simulation. The two domains, hard and soft are investigated separately. domains is studied a multiscale shock-simulation approach that allows simulation low pressure shocks. Both exhibit an unconventional behavior at velocities typically associated with polymers. domain marked by energy dissipation due hydrogen bond breaking. Moreover, radial distribution function suggests severe distortion in ring structure aromatic moieties high pressure. Finally, Hugoniot polyurea, obtained combining mixing rule, shows excellent match experimental data.