Experimental and numerical analysis of perforation of thin steel plates by deformable steel penetrators
Апстракт
The paper considers the modeling of perforation of thin steel plates by cylindrical steel
penetrators – fragment simulators. This problem is significant primarily for military applications.
A comprehensive experimental investigation was performed and relevant data about experiment
setup and measuring equipment are reported. A numerical model developed in FEM based
software Abaqus is described in detail. The Johnson-Cook thermo-viscoplastic constitutive law,
as well as the Johnson-Cook damage model is used in the model. It has been shown that
simulations correctly reproduce the main mechanisms of penetration process – indentation,
bulging and plugging. Computational results are compared with experimental data in terms of the
ballistic curves – diagrams that define the dependence of penetrator residual velocity on its
impact velocity. Very good agreement is obtained between results of simulation and experimental
measurements. The further investigations will be focused on compar...ison of deformations of
penetrator and plate, energetic aspects of the process, and improvement of the numerical model.
Кључне речи:
penetration / perforation / plugging / experimental study / numerical simulationИзвор:
5th International Congress of Serbian Society of Mechanics, Arandjelovac, June 15-17, 2015, 2015, 1-8Издавач:
- Serbian Society of Mechanics
Финансирање / пројекти:
- Рентабилни избор нових технологија и концепција одбране кроз друштвене промене и стратешке оријентације Србије у 21. веку (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-47029)
Колекције
Институција/група
Mašinski fakultetTY - CONF AU - Elek, Predrag AU - Jaramaz, Slobodan AU - Micković, Dejan AU - Miloradović, Nenad PY - 2015 UR - https://machinery.mas.bg.ac.rs/handle/123456789/4592 AB - The paper considers the modeling of perforation of thin steel plates by cylindrical steel penetrators – fragment simulators. This problem is significant primarily for military applications. A comprehensive experimental investigation was performed and relevant data about experiment setup and measuring equipment are reported. A numerical model developed in FEM based software Abaqus is described in detail. The Johnson-Cook thermo-viscoplastic constitutive law, as well as the Johnson-Cook damage model is used in the model. It has been shown that simulations correctly reproduce the main mechanisms of penetration process – indentation, bulging and plugging. Computational results are compared with experimental data in terms of the ballistic curves – diagrams that define the dependence of penetrator residual velocity on its impact velocity. Very good agreement is obtained between results of simulation and experimental measurements. The further investigations will be focused on comparison of deformations of penetrator and plate, energetic aspects of the process, and improvement of the numerical model. PB - Serbian Society of Mechanics C3 - 5th International Congress of Serbian Society of Mechanics, Arandjelovac, June 15-17, 2015 T1 - Experimental and numerical analysis of perforation of thin steel plates by deformable steel penetrators EP - 8 SP - 1 UR - https://hdl.handle.net/21.15107/rcub_machinery_4592 ER -
@conference{ author = "Elek, Predrag and Jaramaz, Slobodan and Micković, Dejan and Miloradović, Nenad", year = "2015", abstract = "The paper considers the modeling of perforation of thin steel plates by cylindrical steel penetrators – fragment simulators. This problem is significant primarily for military applications. A comprehensive experimental investigation was performed and relevant data about experiment setup and measuring equipment are reported. A numerical model developed in FEM based software Abaqus is described in detail. The Johnson-Cook thermo-viscoplastic constitutive law, as well as the Johnson-Cook damage model is used in the model. It has been shown that simulations correctly reproduce the main mechanisms of penetration process – indentation, bulging and plugging. Computational results are compared with experimental data in terms of the ballistic curves – diagrams that define the dependence of penetrator residual velocity on its impact velocity. Very good agreement is obtained between results of simulation and experimental measurements. The further investigations will be focused on comparison of deformations of penetrator and plate, energetic aspects of the process, and improvement of the numerical model.", publisher = "Serbian Society of Mechanics", journal = "5th International Congress of Serbian Society of Mechanics, Arandjelovac, June 15-17, 2015", title = "Experimental and numerical analysis of perforation of thin steel plates by deformable steel penetrators", pages = "8-1", url = "https://hdl.handle.net/21.15107/rcub_machinery_4592" }
Elek, P., Jaramaz, S., Micković, D.,& Miloradović, N.. (2015). Experimental and numerical analysis of perforation of thin steel plates by deformable steel penetrators. in 5th International Congress of Serbian Society of Mechanics, Arandjelovac, June 15-17, 2015 Serbian Society of Mechanics., 1-8. https://hdl.handle.net/21.15107/rcub_machinery_4592
Elek P, Jaramaz S, Micković D, Miloradović N. Experimental and numerical analysis of perforation of thin steel plates by deformable steel penetrators. in 5th International Congress of Serbian Society of Mechanics, Arandjelovac, June 15-17, 2015. 2015;:1-8. https://hdl.handle.net/21.15107/rcub_machinery_4592 .
Elek, Predrag, Jaramaz, Slobodan, Micković, Dejan, Miloradović, Nenad, "Experimental and numerical analysis of perforation of thin steel plates by deformable steel penetrators" in 5th International Congress of Serbian Society of Mechanics, Arandjelovac, June 15-17, 2015 (2015):1-8, https://hdl.handle.net/21.15107/rcub_machinery_4592 .