Ignition of organic explosives by a laser pulse

Abstract

The modeling of initiation of PETN, RDX, HMX and TATB by a short laser pulse is done in this work. The heat-conduction equation was solved in a cylindrical coordinate system taking into account multiple reflection of the light beam, zero-order exothermic reaction, and melting. The calculation results for PETN are in satisfactory agreement with experiment. Calculations have shown that with an identical coefficient of absorption the most sensitive is PETN, and the most heat-resistant is TATB.