Preparation of the non-cohesive soil sample and calibration of the pneumatical launcher in the dynamic soil test SHPB

• Autorzy: Sobczyk Kamil , Kruszka Leopold , Grązka Michał , Chmielewski Ryszard , Rekucki Ryszard

Identyfikatory

DOI

10.37105/iboa.129

• Języki publikacji: EN

Abstrakty

EN

The paper analyzes the problem of initial compaction of a non-cohesive soil sample on the example of dry silty sand samples. Two different compaction methodologies were used: I) dynamic compaction - using split Hopkinson pressure bar and II) vibration compaction - using a vibrating shaker. A better result of the compaction process was obtained for dynamic compaction with an initial pressure value of 0.5 bar (small difference in the result - both methods obtained comparable results). The paper also includes a numerical analysis of the calibration of the pneumatic launcher in the Matlab environment on the basis of the system of difference equations. The calibration process was carried out in the initial pressure range from 0.5 to 3.0 bar for three different variants of the barprojectile length: 100 mm, 200 mm and 250 mm and compared with the experimental analysis - the results were consistent.

Słowa kluczowe

EN

sample preparation; non-cohesive soil; launcher calibration; soil dynamic testing; split Hopkinson pressure bar; SHPB

PL

przygotowanie próbki; grunt niespoisty; kalibracja wyrzutni; badanie dynamiczne gleby; dzielony pręt Hopkinsona; SHPB

• Wydawca: Centrum Rzeczoznawstwa Budowlanego Sp. z o.o.
• Czasopismo: Inżynieria Bezpieczeństwa Obiektów Antropogenicznych
• Rocznik: 2022
• Tom: Nr 1
• Strony: 16--27
• Opis fizyczny: Bibliogr. 12 poz., rys., tab.

Twórcy

autor

Sobczyk Kamil

• Faculty of Civil Engineering and Geodesy, Military University of Technology, Warsaw, Poland

• https://orcid.org/0000-0002-5929-757X

autor

Kruszka Leopold

• Faculty of Civil Engineering and Geodesy, Military University of Technology, Warsaw, Poland

• https://orcid.org/0000-0001-5129-2531

autor

Grązka Michał

• Faculty of Mechatronics, Armament and Aerospace, Military University of Technology, Warsaw, Poland

• https://orcid.org/0000-0003-0639-5755

autor

Chmielewski Ryszard

• Faculty of Civil Engineering and Geodesy, Military University of Technology, Warsaw, Poland

• https://orcid.org/0000-0001-5662-9180

autor

Rekucki Ryszard

• Faculty of Civil Engineering and Geodesy, Military University of Technology, Warsaw, Poland

• https://orcid.org/0000-0002-2040-7073

Bibliografia

• 1. Baryłka, A. Zagadnienie zdatności obiektów budowlanych do użytkowania w problematyce inżynierii bezpieczeństwa tych obiektów. Inżynieria Bezpieczeństwa Obiektów Antropogenicznych 4 (2019).
• 2. Baryłka, A. & Bąk, G. Wpływ pożaru zewnętrznego na wytężenie obudowy schronu wykopowego. Inżynieria Bezpieczeństwa Obiektów Antropogenicznych 3-4 (2018).
• 3. Chmielewski, R., Kruszka, L., Rekucki, R. & Sobczyk, K. Experimental Investigation of Dynamic Behavior of Silty Sand. Archives of Civil Engineering LXVII, 481–498 (1 2021).
• 4. Mishra, S., Chakraborty, T. & Basu, D. High Strain Rate Stress-Strain Response of Soils—A Review. Japanese Geotechnical Society Special Publication 3, 80–85 (2015).
• 5. Omidvar, M., Iskander, M. & Bless, S. Stress-strain behavior of sand at high strain rates. International Journal of Impact Engineering 49, 192–213 (2012).
• 6. Papliński, A. Assessment of threat arising by closed – volume explosions of fuel-air mixtures. Safety Engineering of Anthropogenic Objects 4 (2021).
• 7. Sobczyk, K., Chmielewski, R. & Duda, K. The concept of a prefabricated structure for protection of critical infrastructure facilities. Biuletyn WAT LIXII, 173–196 (2 2018).
• 8. Sobczyk, K., Chmielewski, R., Kruszka, L. & Rekucki, R. Strength Characterization of Soils’ Properties at High Strain Rates Using the Hopkinson Technique - A Review of Experimental Testing. Materials 15, 274 (1 2022).
• 9. Sobczyk, K., Chmilewski, R. & Kruszka, L. The Concept Of Experimental Research On The Behavior Of Sand Cover Material For Protective Shelters For Civilians. Safety Engineering of Anthropogenic Objects 1 (2020).
• 10. Sobczyk, K., Kruszka, L., Chmielewski, R. & Rekucki, R. Performance characteristics of Hopkinson’s set-up pneumatic launcher. Acta Polytechnica 61, 552–561 (2021).
• 11. Torecki, S. Balistyka wewnętrzna (Wydawnictwo WAT, Warszawa, 1980).
• 12. Wiśniewski, S. Termodynamika Techniczna (Wydawnictwo Naukowo-Techniczne, Warszawa, 1980).