i was simulating constant strain rate deformation of a AL203 structure in NVT nose hoover with default parameters, at around 5.6k picosecond just as the fracture initiates the simulation ended giving the error "The optimization of the polarization energy failed, nlopt status: -1"
i am using Tangney_AlO_2013 potential for the simulation :
what could i be doing wrong or is it due to the choise of wrong potential??
