Analysis of a degenerated standard model in the piercing process

• Autorzy: Jamroziak K.
• Języki publikacji: EN

Abstrakty

EN

Purpose: The purpose of this paper is the mathematical description of the impact phenomenon of a bullet of the speed ca. 400 m/s, with the use of a degenerated model. Design/methodology/approach: In the study, an attempt has been made to apply an untypical model for the piercing phenomenon analysis. Basing on the model, the theoretical analysis of the piercing phenomenon in quasistatic and dynamic load conditions, in the impact load form, has been carried out. Findings: This analysis enabled derivation of significant conclusions useful in the design process of effective ballistic shields. Research limitations/implications: In the study, the concept has been assumed that a dynamic model, simple as possible, that may be analyzed not only by numerical methods but also (at least approximately) with the mathematical analysis methods, may provide significant directions concerning material piercing. Practical implications: The use of so called degenerated model allows to describe the phenomenon in more detail at various piercing speeds what extends the possibilities in the sphere of designing the optimum ballistic shields and of identification of the properties of materials applied for construction of shields. Originality/value: The proposed method of identification of material properties in the piercing process, within the relation: force - deforamtion, is a novel one since the essence of the identification is the standard rheological model in an adequate plastic component describing the viscous attenuation with dry friction.

Słowa kluczowe

EN

computational mechanics; impact load; impact; composites

PL

mechanika komputerowa; obciążenie uderzeniowe; udar; kompozyty

• Wydawca: International OCSCO World Press
• Czasopismo: Journal of Achievements in Materials and Manufacturing Engineering
• Rocznik: 2007
• Tom: Vol. 22, nr 1
• Strony: 49--52
• Opis fizyczny: Bibliogr. 15 poz., rys.

Twórcy

autor

Jamroziak K.

• Combat Technology Department, The Tadeusz Kosciuszko Land Forces Military Academy, ul. Czajkowskiego 109, 51-150 Wroclaw, Poland,

Bibliografia

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