Modeling and Design of SHPB to Characterize Brittle Materials Under Compression for High Strain Rates
This paper presents an analytical prediction coupled with numerical simulations of a split Hopkinson pressure bar (SHPB) that could be used during further experiments to measure the dynamic compression strength of concrete. The current study combines experimental, modeling and numerical results, per...
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doaj-2ba8947308b849089ba52fbdedf44f5a2020-11-25T03:02:48ZengMDPI AGMaterials1996-19442020-05-01132191219110.3390/ma13092191Modeling and Design of SHPB to Characterize Brittle Materials Under Compression for High Strain RatesTomasz Jankowiak0Alexis Rusinek1George Z. Voyiadjis2Institute of Structural Analysis, Poznan University of Technology, Piotrowo 5, 60-965 Poznań, PolandLaboratory of Microstructure Studies and Mechanics of Materials, UMR-CNRS 7239, Lorraine University, 7 rue Félix Savart, BP 15082, 57073 Metz Cedex 03, FranceComputational Solid Mechanics Laboratory, Louisiana State University, Baton Rouge, LA 70803, USAThis paper presents an analytical prediction coupled with numerical simulations of a split Hopkinson pressure bar (SHPB) that could be used during further experiments to measure the dynamic compression strength of concrete. The current study combines experimental, modeling and numerical results, permitting an inverse method by which to validate measurements. An analytical prediction is conducted to determine the waves propagation present in SHPB using a one-dimensional theory and assuming a strain rate dependence of the material strength. This method can be used by designers of new SPHB experimental setups to predict compressive strength or strain rates reached during tests, or to check the consistencies of predicted results. Numerical simulation results obtained using LS-DYNA finite element software are also presented in this paper, and are used to compare the predictions with the analytical results. This work focuses on an SPHB setup that can accurately identify the strain rate sensitivities of concrete or brittle materials.https://www.mdpi.com/1996-1944/13/9/2191concretedynamic compressionSplit Hopkinson Pressure Bars (SPHB)brittle materialssimulation |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Tomasz Jankowiak Alexis Rusinek George Z. Voyiadjis |
spellingShingle |
Tomasz Jankowiak Alexis Rusinek George Z. Voyiadjis Modeling and Design of SHPB to Characterize Brittle Materials Under Compression for High Strain Rates Materials concrete dynamic compression Split Hopkinson Pressure Bars (SPHB) brittle materials simulation |
author_facet |
Tomasz Jankowiak Alexis Rusinek George Z. Voyiadjis |
author_sort |
Tomasz Jankowiak |
title |
Modeling and Design of SHPB to Characterize Brittle Materials Under Compression for High Strain Rates |
title_short |
Modeling and Design of SHPB to Characterize Brittle Materials Under Compression for High Strain Rates |
title_full |
Modeling and Design of SHPB to Characterize Brittle Materials Under Compression for High Strain Rates |
title_fullStr |
Modeling and Design of SHPB to Characterize Brittle Materials Under Compression for High Strain Rates |
title_full_unstemmed |
Modeling and Design of SHPB to Characterize Brittle Materials Under Compression for High Strain Rates |
title_sort |
modeling and design of shpb to characterize brittle materials under compression for high strain rates |
publisher |
MDPI AG |
series |
Materials |
issn |
1996-1944 |
publishDate |
2020-05-01 |
description |
This paper presents an analytical prediction coupled with numerical simulations of a split Hopkinson pressure bar (SHPB) that could be used during further experiments to measure the dynamic compression strength of concrete. The current study combines experimental, modeling and numerical results, permitting an inverse method by which to validate measurements. An analytical prediction is conducted to determine the waves propagation present in SHPB using a one-dimensional theory and assuming a strain rate dependence of the material strength. This method can be used by designers of new SPHB experimental setups to predict compressive strength or strain rates reached during tests, or to check the consistencies of predicted results. Numerical simulation results obtained using LS-DYNA finite element software are also presented in this paper, and are used to compare the predictions with the analytical results. This work focuses on an SPHB setup that can accurately identify the strain rate sensitivities of concrete or brittle materials. |
topic |
concrete dynamic compression Split Hopkinson Pressure Bars (SPHB) brittle materials simulation |
url |
https://www.mdpi.com/1996-1944/13/9/2191 |
work_keys_str_mv |
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