ZHOU Xinlong, LIU Zuliang, ZHU Shunguan, et al. Molecular dynamics simulation on sensitivity and mechanical properties of ANPyO crystal at different temperature[J]. CIESC Journal, 2017, (3): 841-847.
ZHOU Xinlong, LIU Zuliang, ZHU Shunguan, et al. Molecular dynamics simulation on sensitivity and mechanical properties of ANPyO crystal at different temperature[J]. CIESC Journal, 2017, (3): 841-847.DOI: 10.11949/j.issn.0438-1157.20160276.
Molecular dynamics (MD) simulation was performed to investigate the super cell of ANPyO and its cutting model along (4
0
-2) crystalline surface at different temperature (195
245
295
345
395 K) by COMPASS force field in NPT ensemble. The results show that
with the temperature increasing
the maximum bond length of the trigger bond (Lmax) increases
the interaction energy between C and N of the trigger bond (EC-N) decreases and so does the cohesive energy density (CED). These results agree well with the fact that the sensitivity of the explosive increase with the temperature increasing. Lmax
EC-N and CED can be used as theoretical criteria to predict the sensitivity of the explosive. The mechanical property of ANPyO at different temperature were obtained
which provides the change regularity of mechanical property with temperature increasing.