Study of the shock wave effect on the deformation of the vehicle bottom using deformable energy absorbers

Authors

  • Lech Starczewski Military Institute of Armored and Automotive Technology Okuniewska 1 Str 05-070 Sulejówek Poland
  • Michał Gmitrzuk Military Institute of Armored and Automotive Technology Okuniewska 1 Str 05-070 Sulejówek Poland
  • Dariusz Danielewicz Military Institute of Armored and Automotive Technology Okuniewska 1 Str 05-070 Sulejówek Poland
  • Krzysztof Szcześniak Military Institute of Armored and Automotive Technology Okuniewska 1 Str 05-070 Sulejówek Poland
  • Robert Nyc Military Institute of Armored and Automotive Technology Okuniewska 1 Str 05-070 Sulejówek Poland

DOI:

https://doi.org/10.5755/j01.mech.23.6.14119

Keywords:

Shock wave, Blast energy absorbers, Deformation, Detonation, Numerical simulation

Abstract

The paper reports a study on the effect of a shock wave generated during the detonation of 1.5 kg TNT  on the deformation of a multi-layered energy absorber. The experiments were carried out using a custom- designed testing station. The detonation of the charge was performed using a steel plate with a blind hole in accordance with the requirements of the NATO (North Atlantic Treaty Organization) AEP -55 (Allied Engineering Publication) volume 2 document. In the tests, the total and plastic deformations of the plate modelling the basic armour of the lower part of the vehicle in configurations without and with a shock wave absorbing element (energy absorber) were measured. The comb gage method reported by the US Army Developmental Test Command was used in measurements of the total deformation of the model. The study has shown that an appropriate design of the energy absorber and the use of suitable materials in its fabrication allow the total deformation to be reduced. Moreover in this article numerical simulations of the deformation phenomenon of the multi-layered energy absorbers were shown. Numerical simulations have shown high numerical model compliance compared to the experimental studies. In the studies were achieved about 99 percent numerical with the real model correlation.

DOI: http://dx.doi.org/10.5755/j01.mech.23.6.14119

Author Biographies

Lech Starczewski, Military Institute of Armored and Automotive Technology Okuniewska 1 Str 05-070 Sulejówek Poland

Department of Material Expertise Armament and Equipment

Supervisor

Michał Gmitrzuk, Military Institute of Armored and Automotive Technology Okuniewska 1 Str 05-070 Sulejówek Poland

Department of Material Expertise Armament and Equipment

Assistant

Dariusz Danielewicz, Military Institute of Armored and Automotive Technology Okuniewska 1 Str 05-070 Sulejówek Poland

Department of Material Expertise Armament and Equipment

Assistant

Krzysztof Szcześniak, Military Institute of Armored and Automotive Technology Okuniewska 1 Str 05-070 Sulejówek Poland

Department of Material Expertise Armament and Equipment

Assistant

Robert Nyc, Military Institute of Armored and Automotive Technology Okuniewska 1 Str 05-070 Sulejówek Poland

Department of Material Expertise Armament and Equipment

Assistant

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Published

2017-12-28

Issue

Section

MECHANICS OF SOLID BODIES