Shock Equation of State of Single Constituent and Multi-Constituent Epoxy-Based Particulate Composites

Jordan, Jennifer L.; Dattelbaum, Dana M.; Ferranti, Louis; Sutherland, Gerrit; Baer, Mel; Richards, Wayne; Sheffield, S. A.; Dick, Richard D.; Thadhani, Naresh N.

doi:10.1063/1.3295032

Cited by 3 publications

(1 citation statement)

References 11 publications

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“…In recent years, great progress has been made in the study of FeÀ Al composite materials. Jordan et al [7] investigated the impact equation of state for FeÀ Al mixtures and used light gas gun loading and explosion loading to obtain the Hugoniot parameters of energetic materials with a pressure range from 2-23 GPa. Wang et al [8] prepared FeÀ Al micro-nano composite particles with core-shell structures and found that the thermal reactivity of FeÀ Al micro-nano composite powder was significantly higher than that of raw material Al powder via DSC analysis.…”

Section: Introductionmentioning

confidence: 99%

Study of the Impact Energy Release Characteristics of Fine‐Grained Fe−Al Energetic Jets

Jiang³

2019

Propellants Explo Pyrotec

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Fine‐grained Fe−Al energetic materials have high reaction enthalpies, and the release energy of the iron phase and a large portion of the active aluminium phase in sintered materials enables the replacement of conventional materials in new types of weapons. To study the energy release characteristics of fine‐grained Fe−Al energetic jets under impact loading, a dynamic energy acquisition system is established to quantify the energy generated by the response of fine‐grained Fe−Al energetic jets to impact targets. The pressure‐time curves of fine‐grained Fe−Al energetic jets with different ratios under different impact conditions are obtained, and a method for calculating the pressure differential value is proposed to quantitatively determine the energy release values of fine‐grained Fe−Al energetic jets. The energy release mechanism of the Fe−Al energetic jet is analysed at the micro‐level by recovering the reaction products. The results show that there is an optimal Fe−Al ratio that attains the greatest energy release effect from fine‐grained Fe−Al energetic jets. With increasing impact energy, the energy released by energetic jets tends to increase, and an impact energy threshold that saturates the chemical reaction of energetic materials in the jets exists. The relationship between the impact conditions and the energy release value of fine‐grained Fe−Al energetic jets is established.

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Section: Introductionmentioning

confidence: 99%

Study of the Impact Energy Release Characteristics of Fine‐Grained Fe−Al Energetic Jets

Jiang³

2019

Propellants Explo Pyrotec

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Mixture model for determination of shock equation of state

Jordan

Baer

2012

Journal of Applied Physics

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Simple mixture models for the prediction of shock equations of state (Hugoniot) are a necessary tool for characterization of multiple composites. A mixture model for determining the shock equation of state of composite materials is presented. The model is completely flexible allowing for multiple (>2) components. Additionally, error propagation analysis for the two component mixture model has been accomplished. The model predicts the equation of state to 5%–15% of the experimental data, which is comparable to variations realized in meso-scale modeling of similar materials.

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Generalized enthalpy based equation of state for multi-component mixtures

Nayak

Menon²

2017

AIP Advances

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An equation of state using pressure and temperature as independent variables, including non-equilibrium thermal energies of components and explicit accounting of thermal electron effects, is formulated for multi component mixtures. As pressure equilibration is faster in mixtures, this approach is more suited than earlier schemes using Mie-Gruneisen equation of state. Due to the reliance on enthalpy, in lieu of energy, it is directly applicable also to treat porosity effects. The formulation leads to an expression for mixture volume which consists of a term depended on enthalpy differences of components, in addition to those depending on average mixture parameters. A method to estimate non-equilibrium thermal effects, using component Hugoniot to compute non-equilibrium temperatures, is also proposed in this work. Results obtained for two and three component mixtures compare well with experimental Hugoniot data.

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Shock Equation of State of Single Constituent and Multi-Constituent Epoxy-Based Particulate Composites

Cited by 3 publications

References 11 publications

Study of the Impact Energy Release Characteristics of Fine‐Grained Fe−Al Energetic Jets

Study of the Impact Energy Release Characteristics of Fine‐Grained Fe−Al Energetic Jets

Mixture model for determination of shock equation of state

Generalized enthalpy based equation of state for multi-component mixtures

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