X-ray Phase Contrast Imaging of the Impact of a Single HMX Particle in a Polymeric Matrix
Abstract
Abstract A complete understanding of the mechanisms by which high explosives (HEs) are shock initiated, especially at the particle scale, is still in demand. One approach to explain shock initiation phenomenon is hot spot theory, which suggests that distributed energy in energetic material is localized due to shock or impact to generate the high temperatures for ignition. This study focuses on the impact response of a HE polycrystalline particle, specifically HMX, in a polymer matrix. This represents a simplified analog of a traditional polymer‐bonded explosive (PBX) formulation. A light gas gun, together with high‐speed x‐ray phase contrast imaging (PCI), was used to study the impact response of a single particle of production‐grade HMX in a Sylgard‐184® matrix. The high‐speed x‐ray PCI allows for real‐time visualization of HE particle behavior. The experiments revealed that, at impact velocities of ∼200 m s −1 , the energetic particle was cracked and crushed. When the impact velocity was increased to 445 m s −1 , a significant volume expansion of the particle was observed. This volume expansion is considered to be the result of chemical reaction within the HE particle.
- Authors:
-
- Purdue Univ., West Lafayette, IN (United States)
- Argonne National Lab. (ANL), Lemont, IL (United States)
- Publication Date:
- Research Org.:
- Argonne National Laboratory (ANL), Argonne, IL (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22). Office of Naval Research; USDOE
- OSTI Identifier:
- 1529128
- Alternate Identifier(s):
- OSTI ID: 1502268
- Grant/Contract Number:
- AC02-06CH11357; N00014‐16‐1‐2557
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Propellants, Explosives, Pyrotechnics
- Additional Journal Information:
- Journal Volume: 44; Journal Issue: 4; Journal ID: ISSN 0721-3115
- Publisher:
- Wiley
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 42 ENGINEERING; HMX; PCI; energetics; impact; reaction
Citation Formats
Kerschen, Nicholas E., Sorensen, Christian J., Guo, Zherui, Mares, Jesus O., Fezzaa, Kamel, Sun, Tao, Son, Steven F., and Chen, Weinong W. X-ray Phase Contrast Imaging of the Impact of a Single HMX Particle in a Polymeric Matrix. United States: N. p., 2019.
Web. doi:10.1002/prep.201800002.
Kerschen, Nicholas E., Sorensen, Christian J., Guo, Zherui, Mares, Jesus O., Fezzaa, Kamel, Sun, Tao, Son, Steven F., & Chen, Weinong W. X-ray Phase Contrast Imaging of the Impact of a Single HMX Particle in a Polymeric Matrix. United States. https://doi.org/10.1002/prep.201800002
Kerschen, Nicholas E., Sorensen, Christian J., Guo, Zherui, Mares, Jesus O., Fezzaa, Kamel, Sun, Tao, Son, Steven F., and Chen, Weinong W. Thu .
"X-ray Phase Contrast Imaging of the Impact of a Single HMX Particle in a Polymeric Matrix". United States. https://doi.org/10.1002/prep.201800002. https://www.osti.gov/servlets/purl/1529128.
@article{osti_1529128,
title = {X-ray Phase Contrast Imaging of the Impact of a Single HMX Particle in a Polymeric Matrix},
author = {Kerschen, Nicholas E. and Sorensen, Christian J. and Guo, Zherui and Mares, Jesus O. and Fezzaa, Kamel and Sun, Tao and Son, Steven F. and Chen, Weinong W.},
abstractNote = {Abstract A complete understanding of the mechanisms by which high explosives (HEs) are shock initiated, especially at the particle scale, is still in demand. One approach to explain shock initiation phenomenon is hot spot theory, which suggests that distributed energy in energetic material is localized due to shock or impact to generate the high temperatures for ignition. This study focuses on the impact response of a HE polycrystalline particle, specifically HMX, in a polymer matrix. This represents a simplified analog of a traditional polymer‐bonded explosive (PBX) formulation. A light gas gun, together with high‐speed x‐ray phase contrast imaging (PCI), was used to study the impact response of a single particle of production‐grade HMX in a Sylgard‐184® matrix. The high‐speed x‐ray PCI allows for real‐time visualization of HE particle behavior. The experiments revealed that, at impact velocities of ∼200 m s −1 , the energetic particle was cracked and crushed. When the impact velocity was increased to 445 m s −1 , a significant volume expansion of the particle was observed. This volume expansion is considered to be the result of chemical reaction within the HE particle.},
doi = {10.1002/prep.201800002},
journal = {Propellants, Explosives, Pyrotechnics},
number = 4,
volume = 44,
place = {United States},
year = {Thu Mar 21 00:00:00 EDT 2019},
month = {Thu Mar 21 00:00:00 EDT 2019}
}
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Works referencing / citing this record:
The effect of crystal anisotropy and plastic response on the dynamic fracture of energetic materials
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