Prediction of Peak Overpressure of Charge Enveloped by Polymer Matrix Composite: Theoretical Modeling and Experimental Verification
This study aimed at elucidating some characteristics of the shock wave overpressure generated by a non-traditional layered charge comprising an inner high-energy explosive and an outer polymer matrix composite. Two models for predicting the peak overpressure (Δ<i>p</i><sub>m</su...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-12-01
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| Series: | Polymers |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2073-4360/15/1/219 |
| _version_ | 1797406421142208512 |
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| author | Jun-Bao Li Wei-Bing Li Xiao-Ming Wang Jia-Xin Yu |
| author_facet | Jun-Bao Li Wei-Bing Li Xiao-Ming Wang Jia-Xin Yu |
| author_sort | Jun-Bao Li |
| collection | DOAJ |
| description | This study aimed at elucidating some characteristics of the shock wave overpressure generated by a non-traditional layered charge comprising an inner high-energy explosive and an outer polymer matrix composite. Two models for predicting the peak overpressure (Δ<i>p</i><sub>m</sub>) of the charge were established, namely, a model based on the initial parameters of the blast wave, and a model considering the weakening of the explosion energy through the introduction of polymer matrix cladding. The overpressure of a typical layered charge was experimentally measured for model validation. It was found that the difference between the Δ<i>p</i><sub>m</sub> predicted by the two models and the experimental data is less than 15.12% and 14.17%, respectively. The model that was established based on the conservation of energy law, is in best agreement with the experimental data under different cladding/charge mass ratios (<i>α<sub>m</sub></i>). The model that was based on the initial parameters of the blast wave obtained a low predicted value when <i>α<sub>m</sub></i> was 0.4–0.8, which is attributed to the non-uniformity of the gas-solid mixture during the explosive dispersion stage. |
| first_indexed | 2024-03-09T03:26:11Z |
| format | Article |
| id | doaj.art-2a7a72b6b6be4a69a33cc938455b3744 |
| institution | Directory Open Access Journal |
| issn | 2073-4360 |
| language | English |
| last_indexed | 2024-03-09T03:26:11Z |
| publishDate | 2022-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Polymers |
| spelling | doaj.art-2a7a72b6b6be4a69a33cc938455b37442023-12-03T15:01:51ZengMDPI AGPolymers2073-43602022-12-0115121910.3390/polym15010219Prediction of Peak Overpressure of Charge Enveloped by Polymer Matrix Composite: Theoretical Modeling and Experimental VerificationJun-Bao Li0Wei-Bing Li1Xiao-Ming Wang2Jia-Xin Yu3ZNDY of Ministerial Key Laboratory, Nanjing University of Science and Technology, Nanjing 210094, ChinaZNDY of Ministerial Key Laboratory, Nanjing University of Science and Technology, Nanjing 210094, ChinaZNDY of Ministerial Key Laboratory, Nanjing University of Science and Technology, Nanjing 210094, ChinaZNDY of Ministerial Key Laboratory, Nanjing University of Science and Technology, Nanjing 210094, ChinaThis study aimed at elucidating some characteristics of the shock wave overpressure generated by a non-traditional layered charge comprising an inner high-energy explosive and an outer polymer matrix composite. Two models for predicting the peak overpressure (Δ<i>p</i><sub>m</sub>) of the charge were established, namely, a model based on the initial parameters of the blast wave, and a model considering the weakening of the explosion energy through the introduction of polymer matrix cladding. The overpressure of a typical layered charge was experimentally measured for model validation. It was found that the difference between the Δ<i>p</i><sub>m</sub> predicted by the two models and the experimental data is less than 15.12% and 14.17%, respectively. The model that was established based on the conservation of energy law, is in best agreement with the experimental data under different cladding/charge mass ratios (<i>α<sub>m</sub></i>). The model that was based on the initial parameters of the blast wave obtained a low predicted value when <i>α<sub>m</sub></i> was 0.4–0.8, which is attributed to the non-uniformity of the gas-solid mixture during the explosive dispersion stage.https://www.mdpi.com/2073-4360/15/1/219layered chargepeak overpressuredetonation productsprediction modelexperimental verification |
| spellingShingle | Jun-Bao Li Wei-Bing Li Xiao-Ming Wang Jia-Xin Yu Prediction of Peak Overpressure of Charge Enveloped by Polymer Matrix Composite: Theoretical Modeling and Experimental Verification Polymers layered charge peak overpressure detonation products prediction model experimental verification |
| title | Prediction of Peak Overpressure of Charge Enveloped by Polymer Matrix Composite: Theoretical Modeling and Experimental Verification |
| title_full | Prediction of Peak Overpressure of Charge Enveloped by Polymer Matrix Composite: Theoretical Modeling and Experimental Verification |
| title_fullStr | Prediction of Peak Overpressure of Charge Enveloped by Polymer Matrix Composite: Theoretical Modeling and Experimental Verification |
| title_full_unstemmed | Prediction of Peak Overpressure of Charge Enveloped by Polymer Matrix Composite: Theoretical Modeling and Experimental Verification |
| title_short | Prediction of Peak Overpressure of Charge Enveloped by Polymer Matrix Composite: Theoretical Modeling and Experimental Verification |
| title_sort | prediction of peak overpressure of charge enveloped by polymer matrix composite theoretical modeling and experimental verification |
| topic | layered charge peak overpressure detonation products prediction model experimental verification |
| url | https://www.mdpi.com/2073-4360/15/1/219 |
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