Split Hopkinson Pressure Bar impulse experimental measurement with numerical validation

• Autorzy: Baranowski P.

Identyfikatory

DOI

10.2478/mms-2014-0005

• Języki publikacji: EN

Abstrakty

EN

Materials and their development process are highly dependent on proper experimental testing under wide range of loading within which high-strain rate conditions play a very significant role. For such dynamic loading Split Hopkinson Pressure Bar (SHPB) is widely used for investigating the dynamic behavior of various materials. The presented paper is focused on the SHPB impulse measurement process using experimental and numerical methods. One of the main problems occurring during tests are oscillations recorded by the strain gauges which adversely affect results. Thus, it is desired to obtain the peak shape in the incident bar of SHPB as “smooth” as possible without any distortions. Such impulse characteristics can be achieved using several shaping techniques, e.g. by placing a special shaper between two bars, which in fact was performed by the authors experimentally and subsequently was validated using computational methods.

Słowa kluczowe

EN

Split-Hopkinson Pressure Bar; impulse measurement; experimental testing; numerical studies

• Wydawca: Komitet Metrologii i Aparatury Naukowej PAN
• Czasopismo: Metrology and Measurement Systems
• Rocznik: 2014
• Tom: Vol. 21, nr 1
• Strony: 47--58
• Opis fizyczny: Bibliogr. 40 poz., fot., rys., tab., wykr.

Twórcy

autor

Baranowski P.

• Military University of Technology, Faculty of Mechanical Engineering, Department of Mechanics and Applied Computer Science, Gen. S. Kaliskiego 2, 00-908 Warsaw, Poland

Bibliografia

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Uwagi

EN

The research was carried out under a research grant no. RMN 723.