Strong shock may induce complex processes in porous materials.We use the newly developed material-point-methodto simulate such processes in an HMX-like material.To pick out relevant information,morphologicalcharacterization is used to treat with the temperature map.Via the Minkowski functional analysis the dynamics andthermodynamics of the shock wave reaction on porous HMX-like material are studied.The geometrical and topologicalproperties of the'hot-spots'are revealed.Numerical results indicate that,shocks in porous materials are not simplejump states as classically viewed,but rather are a complex sequence of compressions and rarefactions.They cover abroad spectrum of states.We can use coarse-grained description to the wave series.A threshold value of temperaturepresents a Turing pattern dynamical procedure.A higher porosity is generally preferred when the energetic materialneeds a higher temperature for initiation.The technique of data analysis can be used to other physical quantities,forexample,density,particle velocity,some specific stress,etc.From a series of studies along the line,one may get a largequantity of information for desiring the fabrication of material and choosing shock strength according to what needed isscattered or connected'hot-spots'.
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