Preliminary Numerical Estimation of Selected Terminal Ballistic Effects Produced by Explosion of Mortar Projectile
Results of theoretical modelling of mortar projectile’s fragments propulsion were shown. Taking into account universality of application of the considered ammunition, it seems to be reasonable to conduct simulations of projectile’s fragments propulsion and interaction with the environment. In the co...
Saved in:
| Main Author: | |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Military University of Technology, Warsaw
2018-03-01
|
| Series: | Problemy Mechatroniki |
| Subjects: | |
| Online Access: | http://promechjournal.pl/gicid/01.3001.0011.7178 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850181289129279488 |
|---|---|
| author | Bartosz FIKUS |
| author_facet | Bartosz FIKUS |
| author_sort | Bartosz FIKUS |
| collection | DOAJ |
| description | Results of theoretical modelling of mortar projectile’s fragments propulsion were shown. Taking into account universality of application of the considered ammunition, it seems to be reasonable to conduct simulations of projectile’s fragments propulsion and interaction with the environment. In the conducted investigations, due to dynamic character of the whole phenomena, characterized by extremely high values of strains and strain’s rate, the meshless explicit approach was used (Smoothed Particle Hydrodynamics method implemented in AUTODYN software). This approach minimalized the negative effects of deformation of “classical” Lagrangian mesh.
In order to validate a numerical model, the results were compared with the simplified Gurney’s formula, which provides high accuracy of fragment’s velocity for regular shapes of casing. Comparison of the results showed low value of relative discrepancy (lower than 10%) for the cylindrical part of the casing in which detonation was fully developed and resulted in higher values of relative discrepancy of initial velocity for the non – cylindrical region, especially where the detonation was not developed. |
| format | Article |
| id | doaj-art-14d79fdf5f00400ab60891cd575cd090 |
| institution | OA Journals |
| issn | 2081-5891 |
| language | English |
| publishDate | 2018-03-01 |
| publisher | Military University of Technology, Warsaw |
| record_format | Article |
| series | Problemy Mechatroniki |
| spelling | doaj-art-14d79fdf5f00400ab60891cd575cd0902025-08-20T02:17:57ZengMilitary University of Technology, WarsawProblemy Mechatroniki2081-58912018-03-0191496010.5604/01.3001.0011.717801.3001.0011.7178Preliminary Numerical Estimation of Selected Terminal Ballistic Effects Produced by Explosion of Mortar ProjectileBartosz FIKUS0Military University of Technology, Warsaw, Poland, Faculty of Mechatronics and Aerospace, Institute of Armament TechnologyResults of theoretical modelling of mortar projectile’s fragments propulsion were shown. Taking into account universality of application of the considered ammunition, it seems to be reasonable to conduct simulations of projectile’s fragments propulsion and interaction with the environment. In the conducted investigations, due to dynamic character of the whole phenomena, characterized by extremely high values of strains and strain’s rate, the meshless explicit approach was used (Smoothed Particle Hydrodynamics method implemented in AUTODYN software). This approach minimalized the negative effects of deformation of “classical” Lagrangian mesh. In order to validate a numerical model, the results were compared with the simplified Gurney’s formula, which provides high accuracy of fragment’s velocity for regular shapes of casing. Comparison of the results showed low value of relative discrepancy (lower than 10%) for the cylindrical part of the casing in which detonation was fully developed and resulted in higher values of relative discrepancy of initial velocity for the non – cylindrical region, especially where the detonation was not developed.http://promechjournal.pl/gicid/01.3001.0011.7178mechanicsGurney’s formulamortar projectileexplosionterminal ballisticsmeshless methods |
| spellingShingle | Bartosz FIKUS Preliminary Numerical Estimation of Selected Terminal Ballistic Effects Produced by Explosion of Mortar Projectile Problemy Mechatroniki mechanics Gurney’s formula mortar projectile explosion terminal ballistics meshless methods |
| title | Preliminary Numerical Estimation of Selected Terminal Ballistic Effects Produced by Explosion of Mortar Projectile |
| title_full | Preliminary Numerical Estimation of Selected Terminal Ballistic Effects Produced by Explosion of Mortar Projectile |
| title_fullStr | Preliminary Numerical Estimation of Selected Terminal Ballistic Effects Produced by Explosion of Mortar Projectile |
| title_full_unstemmed | Preliminary Numerical Estimation of Selected Terminal Ballistic Effects Produced by Explosion of Mortar Projectile |
| title_short | Preliminary Numerical Estimation of Selected Terminal Ballistic Effects Produced by Explosion of Mortar Projectile |
| title_sort | preliminary numerical estimation of selected terminal ballistic effects produced by explosion of mortar projectile |
| topic | mechanics Gurney’s formula mortar projectile explosion terminal ballistics meshless methods |
| url | http://promechjournal.pl/gicid/01.3001.0011.7178 |
| work_keys_str_mv | AT bartoszfikus preliminarynumericalestimationofselectedterminalballisticeffectsproducedbyexplosionofmortarprojectile |