Development of a Numerical Model for an Expanding Tube with Linear Explosive Using AUTODYN
Pyrotechnic devices have been employed in satellite launch vehicle missions, generally for the separation of structural subsystems such as stage and satellite separation. Expanding tubes are linear explosives enclosed by an oval steel tube and have been widely used for pyrotechnic joint separation s...
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| Format: | Article |
| Language: | English |
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Wiley
2014-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2014/436156 |
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| _version_ | 1849400402514018304 |
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| author | Mijin Choi Jung-Ryul Lee Cheol-Won Kong |
| author_facet | Mijin Choi Jung-Ryul Lee Cheol-Won Kong |
| author_sort | Mijin Choi |
| collection | DOAJ |
| description | Pyrotechnic devices have been employed in satellite launch vehicle missions, generally for the separation of structural subsystems such as stage and satellite separation. Expanding tubes are linear explosives enclosed by an oval steel tube and have been widely used for pyrotechnic joint separation systems. A numerical model is proposed for the prediction of the proper load of an expanding tube using a nonlinear dynamic analysis code, AUTODYN 2D and 3D. To compute a proper core load, numerical models of the open-ended steel tube and mild detonating tube encasing a high explosive were developed and compared with experimental results. 2D and 3D computational results showed good correlation with ballistic test results. The model will provide more flexibility in expanding tube design, leading to economic benefits in the overall expanding tube development procedure. |
| format | Article |
| id | doaj-art-87c07ca29b4c46e0979173c86cff0a94 |
| institution | Kabale University |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2014-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-87c07ca29b4c46e0979173c86cff0a942025-08-20T03:38:05ZengWileyShock and Vibration1070-96221875-92032014-01-01201410.1155/2014/436156436156Development of a Numerical Model for an Expanding Tube with Linear Explosive Using AUTODYNMijin Choi0Jung-Ryul Lee1Cheol-Won Kong2Department of Aerospace Engineering, Chonbuk National University, 567 Baeje-daero, Deokjin-gu, Jeonju 561-756, Republic of KoreaDepartment of Aerospace Engineering, Chonbuk National University, 567 Baeje-daero, Deokjin-gu, Jeonju 561-756, Republic of KoreaStructures and Material Department, Korea Aerospace Research Institute, Daejeon 305-333, Republic of KoreaPyrotechnic devices have been employed in satellite launch vehicle missions, generally for the separation of structural subsystems such as stage and satellite separation. Expanding tubes are linear explosives enclosed by an oval steel tube and have been widely used for pyrotechnic joint separation systems. A numerical model is proposed for the prediction of the proper load of an expanding tube using a nonlinear dynamic analysis code, AUTODYN 2D and 3D. To compute a proper core load, numerical models of the open-ended steel tube and mild detonating tube encasing a high explosive were developed and compared with experimental results. 2D and 3D computational results showed good correlation with ballistic test results. The model will provide more flexibility in expanding tube design, leading to economic benefits in the overall expanding tube development procedure.http://dx.doi.org/10.1155/2014/436156 |
| spellingShingle | Mijin Choi Jung-Ryul Lee Cheol-Won Kong Development of a Numerical Model for an Expanding Tube with Linear Explosive Using AUTODYN Shock and Vibration |
| title | Development of a Numerical Model for an Expanding Tube with Linear Explosive Using AUTODYN |
| title_full | Development of a Numerical Model for an Expanding Tube with Linear Explosive Using AUTODYN |
| title_fullStr | Development of a Numerical Model for an Expanding Tube with Linear Explosive Using AUTODYN |
| title_full_unstemmed | Development of a Numerical Model for an Expanding Tube with Linear Explosive Using AUTODYN |
| title_short | Development of a Numerical Model for an Expanding Tube with Linear Explosive Using AUTODYN |
| title_sort | development of a numerical model for an expanding tube with linear explosive using autodyn |
| url | http://dx.doi.org/10.1155/2014/436156 |
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