Modelling of damage of glass shields impacted by metallic projectiles

• Autorzy: Jach K. , Owsik J. , Świerczyński R.
• Języki publikacji: EN

Abstrakty

EN

Interaction of metallic projectiles with transparent glass shields has recently become an important theoretical and practical problem (protection of people inside the vehicles, premises, etc.). Computer simulation is the basic tool used for theoretical analysis of such cases, because it takes into account instability, three-dimensional nature of this phenomenon, complex initial-boundary conditions, and actual empirical characteristics of material properties. In the paper, we present the computer modelling results of a glass plate (soda glass) penetration by a steel ball, accelerated to the velocity of 250 m/s. We used the most recent version of the free points method (the so-called markers method) and the relevant code of 3D type. We present the influence of Mohr-Coulomb model coefficients on the process of glass cracking. The results were compared to relevant experimental results. It is shown that using the Mohr-Coulomb model, we have obtained good consistency of the theoretical and experimental results. These results encourage the use of this model and of the computer code to design optimal structure of glass shields (having in view their protective properties).

Słowa kluczowe

PL

modelowanie uszkodzenia; komputerowe modelowanie własności materiałów; modelowanie zderzenia stalowej kuli ze szkłem; model Mohra-Coulomba; projektowanie osłon szklanych

• Wydawca: Instytut Podstawowych Problemów Techniki PAN
• Czasopismo: Journal of Technical Physics
• Rocznik: 2007
• Tom: Vol. 48, no 1
• Strony: 49--60
• Opis fizyczny: Bibliogr. 26 poz., rys.

Twórcy

autor

Jach K.

autor

Owsik J.

autor

Świerczyński R.

• Institute of Optoelectronics, Military University of Technology,

Bibliografia

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