Determination of Johnson-holmquist constitutive model parameters for fused silica
Johnson-Holmquist constitutive model parameters for Fused Silica under dynamic conditions were determined by means of an inverse calibration technique. The identification of the parameters was performed with an multi-object optimizer using experimental data generated by two different validation test...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
EDP Sciences
2012-08-01
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| Series: | EPJ Web of Conferences |
| Online Access: | http://dx.doi.org/10.1051/epjconf/20122604011 |
| _version_ | 1818876279594680320 |
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| author | Bonora N. Iannitti G. Ruggiero A. Ferraro M. |
| author_facet | Bonora N. Iannitti G. Ruggiero A. Ferraro M. |
| author_sort | Bonora N. |
| collection | DOAJ |
| description | Johnson-Holmquist constitutive model parameters for Fused Silica under dynamic conditions were determined by means of an inverse calibration technique. The identification of the parameters was performed with an multi-object optimizer using experimental data generated by two different validation tests: Taylor Cylinder Impact tests and Drop Weight tests, with impact velocity and strain rate ranging from 1 to 100 m/s and from 102 to 104 s−1, respectively. The validity of the parameters set determined in this way was verified comparing numerical predictions and experimental results for an independent designed test, given by a fused silica tile impacted at prescribed velocity by a steel sphere. |
| first_indexed | 2024-12-19T13:39:52Z |
| format | Article |
| id | doaj.art-f8235129c3464765a4535d4b89888715 |
| institution | Directory Open Access Journal |
| issn | 2100-014X |
| language | English |
| last_indexed | 2024-12-19T13:39:52Z |
| publishDate | 2012-08-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | EPJ Web of Conferences |
| spelling | doaj.art-f8235129c3464765a4535d4b898887152022-12-21T20:19:02ZengEDP SciencesEPJ Web of Conferences2100-014X2012-08-01260401110.1051/epjconf/20122604011Determination of Johnson-holmquist constitutive model parameters for fused silicaBonora N.Iannitti G.Ruggiero A.Ferraro M.Johnson-Holmquist constitutive model parameters for Fused Silica under dynamic conditions were determined by means of an inverse calibration technique. The identification of the parameters was performed with an multi-object optimizer using experimental data generated by two different validation tests: Taylor Cylinder Impact tests and Drop Weight tests, with impact velocity and strain rate ranging from 1 to 100 m/s and from 102 to 104 s−1, respectively. The validity of the parameters set determined in this way was verified comparing numerical predictions and experimental results for an independent designed test, given by a fused silica tile impacted at prescribed velocity by a steel sphere.http://dx.doi.org/10.1051/epjconf/20122604011 |
| spellingShingle | Bonora N. Iannitti G. Ruggiero A. Ferraro M. Determination of Johnson-holmquist constitutive model parameters for fused silica EPJ Web of Conferences |
| title | Determination of Johnson-holmquist constitutive model parameters for fused silica |
| title_full | Determination of Johnson-holmquist constitutive model parameters for fused silica |
| title_fullStr | Determination of Johnson-holmquist constitutive model parameters for fused silica |
| title_full_unstemmed | Determination of Johnson-holmquist constitutive model parameters for fused silica |
| title_short | Determination of Johnson-holmquist constitutive model parameters for fused silica |
| title_sort | determination of johnson holmquist constitutive model parameters for fused silica |
| url | http://dx.doi.org/10.1051/epjconf/20122604011 |
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