Thermodynamic modelling of detonation H-N-O high explosives

Bogdanova, Yu. A.; Gubin, S. A.; Anikeev, A.A.; Victorov, S. B.

doi:10.1088/1742-6596/751/1/012018

Cited by 9 publications

(1 citation statement)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…To satisfy growing demands of science and engineer computation, important progress has been made in enlarging application scope and improving computational accuracy by developing sound equation of state (EOS) model [13,14], establishing more effective database [15,16], and introducing new empirical equation [17] over the past decade. However, it is worth mentioning that although the mean absolute error of computed detonation velocity can reach the same order as the experimental error, the absolute error for some explosives is relatively large [16,17].…”

Section: Introductionmentioning

confidence: 99%

Prediction of Detonation Parameters of Energetic Nitro Compounds through Mixture Simulation

2018

Propellants Explo Pyrotec

View full text Add to dashboard Cite

By adding the simulation of initial density into the Stine linear equations to match the element composition, condensed phase enthalpy of formation, and initial density of proposed compound, so‐called mixture simulation (MS) method for predicting the detonation parameters of energetic compound are deduced at the Chapman‐Jouguet detonation theory level in this work. Through selecting the suitable basis set consisting of six basis components, the maximum deviations of MS‐computed detonation velocity and detonation pressure from corresponding experimental values are within 0.2 km s−1 and within 3.4 GPa for the energetic nitro compounds calculated here, respectively. Considering that no empirical parameters are introduced into this model, this calculation is relatively accurate at present. Calculated results show that the MS method can effectively reflect the influence of initial density on detonation parameters and can predict the detonation parameters of non‐nitro energetic compound.

show abstract

Section: Introductionmentioning

confidence: 99%

Prediction of Detonation Parameters of Energetic Nitro Compounds through Mixture Simulation

2018

Propellants Explo Pyrotec

View full text Add to dashboard Cite

show abstract

Shockwave compression and dissociation of ammonia gas

Dattelbaum

Lang

Goodwin

et al. 2019

The Journal of Chemical Physics

View full text Add to dashboard Cite

We performed a series of plate impact experiments on NH3 gas initially at room temperature and at a pressure of ∼100 psi. Shocked states were determined by optical velocimetry and the temperatures by optical pyrometry, yielding compression ratios of ∼5–10 and second shock temperatures in excess of 7500 K. A first-principles statistical mechanical (thermochemical) approach that included chemical dissociation yielded reasonable agreement with experimental results on the principal Hugoniot, even with interparticle interactions neglected. Theoretical analysis of reshocked states, which predicts a significant degree of chemical dissociation, showed reasonable agreement with experimental data for higher temperature shots; however, reshock calculations required the use of interaction potentials. We rationalize the very different shock temperatures obtained, relative to previous results for argon, in terms of atomic versus molecular heat capacities.

show abstract

Equations of state for polyethylene and its shock-driven decomposition products

Maerzke

Coe

Ticknor

et al. 2019

Journal of Applied Physics

View full text Add to dashboard Cite

We construct new equations of state (EOS) for high density and ultrahigh molecular weight polyethylene and their chemical decomposition products under shock loading. The former were built using the SESAME framework, based in part on new specific heat and thermal expansion data reported here. The products EOS was based on thermochemical modeling under the assumption of full thermodynamic and chemical equilibrium. The products are represented as the ideal mixture of bulk carbon in the form of diamond, H2, H, and CH4. In the process of building a new EOS for the products, we recalibrated our exponential-6 pair potential for methane in order to better agree with data that have appeared since its original parameterization. The polyethylene EOS were calibrated to thermal, thermomechanical, and shock data, and their performance was evaluated in hydrodynamic modeling of deep release experiments reported previously.

show abstract

Thermodynamic modelling of detonation H-N-O high explosives

Cited by 9 publications

References 17 publications

Prediction of Detonation Parameters of Energetic Nitro Compounds through Mixture Simulation

Prediction of Detonation Parameters of Energetic Nitro Compounds through Mixture Simulation

Shockwave compression and dissociation of ammonia gas

Equations of state for polyethylene and its shock-driven decomposition products

Contact Info

Product

Resources

About