Numerical simulation of fragmentation warhead mechanisms
Само за регистроване кориснике
2014
Конференцијски прилог (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
Determination of velocity of fragments and their rejection angles is of the critical importance in the
fragmentation warheads design and evaluation of warhead efficiency. It is well known that simplified analytical approaches, like Gurney equations and Taylor formula, provide only a rough estimate of velocity vector of fragments. Therefore, numerical approach is logical and inevitable choice when the more accurate calculations are needed. In the present paper, the commercial multi-purpose program Abaqus, based on the finite element method, is used for simulation of the mechanism of explosive propulsion. Applied modeling techniques as well as the procedure of the
model creation through the modules of Abaqus have been presented. Experimental results of a well documented test of the fragmentation warhead with premade fragments are compared with the simulation results of the corresponding numerical model. Very good agreement between experimental data and the numerical results suggests th...at Abaqus can be successfully used for simulation of warhead mechanisms
Кључне речи:
fragmentation warhead / explosive propulsion / numerical simulation / AbaqusИзвор:
6th International Scientific Conference – OTEH 2014, Belgrade, 9-10 October 2014, 2014, 229-234Издавач:
- Belgrade : Military Technical Institute
Финансирање / пројекти:
Колекције
Институција/група
Mašinski fakultetTY - CONF AU - Elek, Predrag AU - Jaramaz, Slobodan AU - Micković, Dejan AU - Miloradović, Nenad PY - 2014 UR - https://machinery.mas.bg.ac.rs/handle/123456789/4868 AB - Determination of velocity of fragments and their rejection angles is of the critical importance in the fragmentation warheads design and evaluation of warhead efficiency. It is well known that simplified analytical approaches, like Gurney equations and Taylor formula, provide only a rough estimate of velocity vector of fragments. Therefore, numerical approach is logical and inevitable choice when the more accurate calculations are needed. In the present paper, the commercial multi-purpose program Abaqus, based on the finite element method, is used for simulation of the mechanism of explosive propulsion. Applied modeling techniques as well as the procedure of the model creation through the modules of Abaqus have been presented. Experimental results of a well documented test of the fragmentation warhead with premade fragments are compared with the simulation results of the corresponding numerical model. Very good agreement between experimental data and the numerical results suggests that Abaqus can be successfully used for simulation of warhead mechanisms PB - Belgrade : Military Technical Institute C3 - 6th International Scientific Conference – OTEH 2014, Belgrade, 9-10 October 2014 T1 - Numerical simulation of fragmentation warhead mechanisms EP - 234 SP - 229 UR - https://hdl.handle.net/21.15107/rcub_machinery_4868 ER -
@conference{ author = "Elek, Predrag and Jaramaz, Slobodan and Micković, Dejan and Miloradović, Nenad", year = "2014", abstract = "Determination of velocity of fragments and their rejection angles is of the critical importance in the fragmentation warheads design and evaluation of warhead efficiency. It is well known that simplified analytical approaches, like Gurney equations and Taylor formula, provide only a rough estimate of velocity vector of fragments. Therefore, numerical approach is logical and inevitable choice when the more accurate calculations are needed. In the present paper, the commercial multi-purpose program Abaqus, based on the finite element method, is used for simulation of the mechanism of explosive propulsion. Applied modeling techniques as well as the procedure of the model creation through the modules of Abaqus have been presented. Experimental results of a well documented test of the fragmentation warhead with premade fragments are compared with the simulation results of the corresponding numerical model. Very good agreement between experimental data and the numerical results suggests that Abaqus can be successfully used for simulation of warhead mechanisms", publisher = "Belgrade : Military Technical Institute", journal = "6th International Scientific Conference – OTEH 2014, Belgrade, 9-10 October 2014", title = "Numerical simulation of fragmentation warhead mechanisms", pages = "234-229", url = "https://hdl.handle.net/21.15107/rcub_machinery_4868" }
Elek, P., Jaramaz, S., Micković, D.,& Miloradović, N.. (2014). Numerical simulation of fragmentation warhead mechanisms. in 6th International Scientific Conference – OTEH 2014, Belgrade, 9-10 October 2014 Belgrade : Military Technical Institute., 229-234. https://hdl.handle.net/21.15107/rcub_machinery_4868
Elek P, Jaramaz S, Micković D, Miloradović N. Numerical simulation of fragmentation warhead mechanisms. in 6th International Scientific Conference – OTEH 2014, Belgrade, 9-10 October 2014. 2014;:229-234. https://hdl.handle.net/21.15107/rcub_machinery_4868 .
Elek, Predrag, Jaramaz, Slobodan, Micković, Dejan, Miloradović, Nenad, "Numerical simulation of fragmentation warhead mechanisms" in 6th International Scientific Conference – OTEH 2014, Belgrade, 9-10 October 2014 (2014):229-234, https://hdl.handle.net/21.15107/rcub_machinery_4868 .