The thermal response of the ignition and combustion of high-energy material projectiles under the influence of heat
The thermal response of energetic materials involves processes of thermochemical mechanical coupling, which can lead to thermal damage in such materials both before and after ignition, thereby increasing ignition sensitivity and the level of danger. Many studies to date have either neglected or over...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2024-03-01
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| Series: | Case Studies in Thermal Engineering |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214157X24001990 |
| _version_ | 1797271300635361280 |
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| author | Dihua Ou Yang Chunwei Qin Xiaowen Qin Quanmin Xie Xinzhe Nian |
| author_facet | Dihua Ou Yang Chunwei Qin Xiaowen Qin Quanmin Xie Xinzhe Nian |
| author_sort | Dihua Ou Yang |
| collection | DOAJ |
| description | The thermal response of energetic materials involves processes of thermochemical mechanical coupling, which can lead to thermal damage in such materials both before and after ignition, thereby increasing ignition sensitivity and the level of danger. Many studies to date have either neglected or oversimplified the effects of thermal coupling, leading to significant discrepancies between simulated and experimental outcomes. This paper aims to examine the complex processes of ammunition ignition, combustion, and detonation. Employing finite element simulations in conjunction with Arrhenius dynamics and the ignition growth model theory under thermodynamic coupling analysis, it simulates the entire process from the thermal expansion of B explosive prior to ignition, through to combustion and detonation. It establishes the relationship between the damage and fracture state of the shell and the thermal response of the energetic material at varying heating rates. Findings indicate that the severity of the thermal response is determined by the balance between pressure accumulation and the loss of confinement leading to pressure release. Specifically, at heating rates below 0.25 K/min, the shell fractures before combustion of the energetic material; whereas, at rates exceeding 0.375 K/min, the shell fractures after combustion, significantly increasing the risk. The simulation outcomes of this study show strong correlation with experimental results reported in the literature, offering a valuable reference for simulating the ignition and combustion responses of ammunition with similar structural characteristics. |
| first_indexed | 2024-03-07T14:00:44Z |
| format | Article |
| id | doaj.art-12a9985c38b4415681522d7ec01f45ac |
| institution | Directory Open Access Journal |
| issn | 2214-157X |
| language | English |
| last_indexed | 2024-03-07T14:00:44Z |
| publishDate | 2024-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Case Studies in Thermal Engineering |
| spelling | doaj.art-12a9985c38b4415681522d7ec01f45ac2024-03-07T05:27:50ZengElsevierCase Studies in Thermal Engineering2214-157X2024-03-0155104168The thermal response of the ignition and combustion of high-energy material projectiles under the influence of heatDihua Ou Yang0Chunwei Qin1Xiaowen Qin2Quanmin Xie3Xinzhe Nian4Xi'an University of Architecture and Technology, Xi'an, Shaanxi, 710055, ChinaXi'an University of Architecture and Technology, Xi'an, Shaanxi, 710055, China; Corresponding author.Xi'an University of Architecture and Technology, Xi'an, Shaanxi, 710055, ChinaJiang Han University, State Key Laboratory of Precision Blasting, Wuhan, Hubei, 430113, ChinaJiang Han University, State Key Laboratory of Precision Blasting, Wuhan, Hubei, 430113, ChinaThe thermal response of energetic materials involves processes of thermochemical mechanical coupling, which can lead to thermal damage in such materials both before and after ignition, thereby increasing ignition sensitivity and the level of danger. Many studies to date have either neglected or oversimplified the effects of thermal coupling, leading to significant discrepancies between simulated and experimental outcomes. This paper aims to examine the complex processes of ammunition ignition, combustion, and detonation. Employing finite element simulations in conjunction with Arrhenius dynamics and the ignition growth model theory under thermodynamic coupling analysis, it simulates the entire process from the thermal expansion of B explosive prior to ignition, through to combustion and detonation. It establishes the relationship between the damage and fracture state of the shell and the thermal response of the energetic material at varying heating rates. Findings indicate that the severity of the thermal response is determined by the balance between pressure accumulation and the loss of confinement leading to pressure release. Specifically, at heating rates below 0.25 K/min, the shell fractures before combustion of the energetic material; whereas, at rates exceeding 0.375 K/min, the shell fractures after combustion, significantly increasing the risk. The simulation outcomes of this study show strong correlation with experimental results reported in the literature, offering a valuable reference for simulating the ignition and combustion responses of ammunition with similar structural characteristics.http://www.sciencedirect.com/science/article/pii/S2214157X24001990Thermal couplingAmmunition ignitionIgnition growth modelFinite element simulationcrush failure |
| spellingShingle | Dihua Ou Yang Chunwei Qin Xiaowen Qin Quanmin Xie Xinzhe Nian The thermal response of the ignition and combustion of high-energy material projectiles under the influence of heat Case Studies in Thermal Engineering Thermal coupling Ammunition ignition Ignition growth model Finite element simulation crush failure |
| title | The thermal response of the ignition and combustion of high-energy material projectiles under the influence of heat |
| title_full | The thermal response of the ignition and combustion of high-energy material projectiles under the influence of heat |
| title_fullStr | The thermal response of the ignition and combustion of high-energy material projectiles under the influence of heat |
| title_full_unstemmed | The thermal response of the ignition and combustion of high-energy material projectiles under the influence of heat |
| title_short | The thermal response of the ignition and combustion of high-energy material projectiles under the influence of heat |
| title_sort | thermal response of the ignition and combustion of high energy material projectiles under the influence of heat |
| topic | Thermal coupling Ammunition ignition Ignition growth model Finite element simulation crush failure |
| url | http://www.sciencedirect.com/science/article/pii/S2214157X24001990 |
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