Identification of composite materials at high speed deformation with the use of degenerated model

• Autorzy: Jamroziak, K. , Bocian, M.
• Języki publikacji: EN

Abstrakty

EN

Purpose: Composite materials on account of some their characteristics have application in a construction of ballistic shield. An example of the ballistic shield is laminate with the mix-structure materials such as layer pressed of aramid cloths on matrix polymer. Because of the shield’s assignment the aramid cloths are exposed to impact loads caused by an energy made by impact force of cumulated mass (bullet). Previous analyses of the effect are based on linear-elastic reaction of resisting forces between the materials of a bullet and a shield. The article exemplifies the procedure of mechanical properties analysis in the punch effect of the ballistic shield with the use of some of the non-elastic models. Design/methodology/approach: In the article the theoretical analysis of punch effect in the quasi-static load condition based on some of the degenerated models is also presented. Findings: The results of the analysis make aware of demand for designing safety ballistic shields. Research limitations/implications: The main conception was optimum material selection (composite) that has to be done according to the theoretical analysis, which is based on non-elastic models selected in the context of velocity and mass of punching bullet. Practical implications: Application of the complex degenerated model allows to define more characteristics of the punching process of the ballistic shield. Determination of the effect of energy impact dissipation causes material damage of the ballistic shield is enabled to do because of implementation of boundary conditions. Originality/value: Based on the boundary conditions of energy in the way of changing parameters of model we are able to describe non-destructive deformation process.

Słowa kluczowe

PL

mechanika komputerowa; obciążenie udarowe; uderzenie; kompozyty

EN

computational mechanics; impact load; impact; composites

• Czasopismo: Journal of Achievements in Materials and Manufacturing Engineering
• Rocznik: 2008
• Tom: Vol. 28, nr 2
• Strony: 171-174
• Opis fizyczny: Bibliogr. 15 poz., wykr.

Twórcy

autor

Jamroziak, K.

autor

Bocian, M.

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

Bibliografia

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