Correction Procedure of Wave Signals for a Viscoelastic Split Hopkinson Pressure Bar
A polymeric split Hopkinson pressure bar technique (SHPB) is preferred for testing materials with low mechanical impedance. However, the use of polymeric bars requires additional analysis for data reduction, temperature complications and additional restrictions compared with traditional metallic pre...
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| Format: | Article |
| Language: | English |
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Military University of Technology, Warsaw, Poland
2016-03-01
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| Series: | Problemy Mechatroniki |
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| Online Access: | http://publisherspanel.com/gicid/01.3001.0008.5734 |
| _version_ | 1811193130110681088 |
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| author | Jacek JANISZEWSKI Witold BUŻANTOWICZ Paweł BARANOWSKI |
| author_facet | Jacek JANISZEWSKI Witold BUŻANTOWICZ Paweł BARANOWSKI |
| author_sort | Jacek JANISZEWSKI |
| collection | DOAJ |
| description | A polymeric split Hopkinson pressure bar technique (SHPB) is preferred for testing materials with low mechanical impedance. However, the use of polymeric bars requires additional analysis for data reduction, temperature complications and additional restrictions compared with traditional metallic pressure bars. A viscoelastic material, such as PMMA, exhibits both wave attenuation and wave dispersion. When a wave travels through a polymer bar, the wave amplitude decreases due to attenuation and the wave shape becomes distorted. Therefore, signals measured at given positions on a viscoelastic bar do not represent the pulse at another position along the pressure bar without complex corrections. This paper is concerned with the problem of correction of dispersion and attenuation of waves in the viscoelastic SHPB. It has been demonstrated that the Fast Fourier Transform (FFT) spectral analysis method used to reconstruct wave profiles on the measured signals which are being distorted by wave attenuation and dispersion effects is valid and allows for obtaining satisfactory results for tire rubber. |
| first_indexed | 2024-04-12T00:03:23Z |
| format | Article |
| id | doaj.art-ebf2e47799244cbb9bf94fc2e716b754 |
| institution | Directory Open Access Journal |
| issn | 2081-5891 |
| language | English |
| last_indexed | 2024-04-12T00:03:23Z |
| publishDate | 2016-03-01 |
| publisher | Military University of Technology, Warsaw, Poland |
| record_format | Article |
| series | Problemy Mechatroniki |
| spelling | doaj.art-ebf2e47799244cbb9bf94fc2e716b7542022-12-22T03:56:10ZengMilitary University of Technology, Warsaw, PolandProblemy Mechatroniki2081-58912016-03-0171173010.5604/20815891.119519801.3001.0008.5734Correction Procedure of Wave Signals for a Viscoelastic Split Hopkinson Pressure BarJacek JANISZEWSKI0Witold BUŻANTOWICZ1Paweł BARANOWSKI2Faculty of Mechatronics and Aerospace, Military University of Technology, Warsaw, PolandFaculty of Mechatronics and Aerospace, Military University of Technology, Warsaw, PolandFaculty of Mechanical Engineering, Military University of Technology, Warsaw, PolandA polymeric split Hopkinson pressure bar technique (SHPB) is preferred for testing materials with low mechanical impedance. However, the use of polymeric bars requires additional analysis for data reduction, temperature complications and additional restrictions compared with traditional metallic pressure bars. A viscoelastic material, such as PMMA, exhibits both wave attenuation and wave dispersion. When a wave travels through a polymer bar, the wave amplitude decreases due to attenuation and the wave shape becomes distorted. Therefore, signals measured at given positions on a viscoelastic bar do not represent the pulse at another position along the pressure bar without complex corrections. This paper is concerned with the problem of correction of dispersion and attenuation of waves in the viscoelastic SHPB. It has been demonstrated that the Fast Fourier Transform (FFT) spectral analysis method used to reconstruct wave profiles on the measured signals which are being distorted by wave attenuation and dispersion effects is valid and allows for obtaining satisfactory results for tire rubber.http://publisherspanel.com/gicid/01.3001.0008.5734solid mechanicsviscoelastic barsplit Hopkinson pressure bar |
| spellingShingle | Jacek JANISZEWSKI Witold BUŻANTOWICZ Paweł BARANOWSKI Correction Procedure of Wave Signals for a Viscoelastic Split Hopkinson Pressure Bar Problemy Mechatroniki solid mechanics viscoelastic bar split Hopkinson pressure bar |
| title | Correction Procedure of Wave Signals for a Viscoelastic Split Hopkinson Pressure Bar |
| title_full | Correction Procedure of Wave Signals for a Viscoelastic Split Hopkinson Pressure Bar |
| title_fullStr | Correction Procedure of Wave Signals for a Viscoelastic Split Hopkinson Pressure Bar |
| title_full_unstemmed | Correction Procedure of Wave Signals for a Viscoelastic Split Hopkinson Pressure Bar |
| title_short | Correction Procedure of Wave Signals for a Viscoelastic Split Hopkinson Pressure Bar |
| title_sort | correction procedure of wave signals for a viscoelastic split hopkinson pressure bar |
| topic | solid mechanics viscoelastic bar split Hopkinson pressure bar |
| url | http://publisherspanel.com/gicid/01.3001.0008.5734 |
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