Numerical Analysis of Blast Effects and Mitigation in the Far-Field from Small Explosions
Requirements for explosive safety are often given in terms of a “<i>K</i>-Factor”, correlating incident blast effects with the distance and TNT equivalent weight of an explosion. Traditionally, this is conducted using empirical correlations to experimental measurements (e.g., the Kingery...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-09-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/12/17/8824 |
| _version_ | 1827666938759741440 |
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| author | Adam G. Taylor |
| author_facet | Adam G. Taylor |
| author_sort | Adam G. Taylor |
| collection | DOAJ |
| description | Requirements for explosive safety are often given in terms of a “<i>K</i>-Factor”, correlating incident blast effects with the distance and TNT equivalent weight of an explosion. Traditionally, this is conducted using empirical correlations to experimental measurements (e.g., the Kingery–Bulmash equations). In the far-field, empirical verification of incident overpressure and impulse magnitudes can be difficult; extrapolations from data give expected values at reasonable standoff distances that sometimes are too small to measure on available equipment but are larger than some regulations require. The present paper describes the results of numerical hydrocode analysis to verify the expected incident overpressure and impulse from small hemispherical ground charges of TNT at these relatively large distances. Furthermore, the dynamic effect of incident blast waves on lightweight, modular mitigation barriers is studied to gauge their effectiveness at providing safety standard compliance. |
| first_indexed | 2024-03-10T03:00:39Z |
| format | Article |
| id | doaj.art-407bf5ab8d754f29bf7dea9e36d937a7 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-10T03:00:39Z |
| publishDate | 2022-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-407bf5ab8d754f29bf7dea9e36d937a72023-11-23T12:47:32ZengMDPI AGApplied Sciences2076-34172022-09-011217882410.3390/app12178824Numerical Analysis of Blast Effects and Mitigation in the Far-Field from Small ExplosionsAdam G. Taylor0Lawrence Livermore National Laboratory, Computational Engineering Division, Livermore, CA 94550, USARequirements for explosive safety are often given in terms of a “<i>K</i>-Factor”, correlating incident blast effects with the distance and TNT equivalent weight of an explosion. Traditionally, this is conducted using empirical correlations to experimental measurements (e.g., the Kingery–Bulmash equations). In the far-field, empirical verification of incident overpressure and impulse magnitudes can be difficult; extrapolations from data give expected values at reasonable standoff distances that sometimes are too small to measure on available equipment but are larger than some regulations require. The present paper describes the results of numerical hydrocode analysis to verify the expected incident overpressure and impulse from small hemispherical ground charges of TNT at these relatively large distances. Furthermore, the dynamic effect of incident blast waves on lightweight, modular mitigation barriers is studied to gauge their effectiveness at providing safety standard compliance.https://www.mdpi.com/2076-3417/12/17/8824blast effectsmitigationhydrocode analysis |
| spellingShingle | Adam G. Taylor Numerical Analysis of Blast Effects and Mitigation in the Far-Field from Small Explosions Applied Sciences blast effects mitigation hydrocode analysis |
| title | Numerical Analysis of Blast Effects and Mitigation in the Far-Field from Small Explosions |
| title_full | Numerical Analysis of Blast Effects and Mitigation in the Far-Field from Small Explosions |
| title_fullStr | Numerical Analysis of Blast Effects and Mitigation in the Far-Field from Small Explosions |
| title_full_unstemmed | Numerical Analysis of Blast Effects and Mitigation in the Far-Field from Small Explosions |
| title_short | Numerical Analysis of Blast Effects and Mitigation in the Far-Field from Small Explosions |
| title_sort | numerical analysis of blast effects and mitigation in the far field from small explosions |
| topic | blast effects mitigation hydrocode analysis |
| url | https://www.mdpi.com/2076-3417/12/17/8824 |
| work_keys_str_mv | AT adamgtaylor numericalanalysisofblasteffectsandmitigationinthefarfieldfromsmallexplosions |