Structural Response of Submerged Air-Backed Plates by Experimental and Numerical Analyses
This paper presents the results of a series of small-scale underwater shock experiments that measured the structural responses of submerged, fully clamped, air-backed, steel plates to a range of high explosive charge sizes. The experimental results were subsequently used to validate a series of simu...
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| Format: | Article |
| Language: | English |
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Wiley
2000-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2000/984015 |
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| _version_ | 1832566881664368640 |
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| author | Lloyd Hammond Raphael Grzebieta |
| author_facet | Lloyd Hammond Raphael Grzebieta |
| author_sort | Lloyd Hammond |
| collection | DOAJ |
| description | This paper presents the results of a series of small-scale underwater shock experiments that measured the structural responses of submerged, fully clamped, air-backed, steel plates to a range of high explosive charge sizes. The experimental results were subsequently used to validate a series of simulations using the coupled LS-DYNA/USA finite element/boundary element codes. The modelling exercise was complicated by a significant amount of local cavitation occurring in the fluid adjacent to the plate and difficulties in modelling the boundary conditions of the test plates. The finite element model results satisfactorily predicted the displacement-time history of the plate over a range of shock loadings although a less satisfactory correlation was achieved for the peak velocities. It is expected that the predictive capability of the finite element model will be significantly improved once hydrostatic initialisation can be fully utilised with the LS-DYNA/USA software. |
| format | Article |
| id | doaj-art-1cf63204ac1641d9a192f81069bdf2f9 |
| institution | Kabale University |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2000-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-1cf63204ac1641d9a192f81069bdf2f92025-02-03T01:02:49ZengWileyShock and Vibration1070-96221875-92032000-01-017633334110.1155/2000/984015Structural Response of Submerged Air-Backed Plates by Experimental and Numerical AnalysesLloyd Hammond0Raphael Grzebieta1Aeronautical and Maritime Research Laboratory, Defence Science and Technology Organisation, Melbourne Victoria, 3001, AustraliaDepartment of Civil Engineering, Monash University, Clayton, Victoria, AustraliaThis paper presents the results of a series of small-scale underwater shock experiments that measured the structural responses of submerged, fully clamped, air-backed, steel plates to a range of high explosive charge sizes. The experimental results were subsequently used to validate a series of simulations using the coupled LS-DYNA/USA finite element/boundary element codes. The modelling exercise was complicated by a significant amount of local cavitation occurring in the fluid adjacent to the plate and difficulties in modelling the boundary conditions of the test plates. The finite element model results satisfactorily predicted the displacement-time history of the plate over a range of shock loadings although a less satisfactory correlation was achieved for the peak velocities. It is expected that the predictive capability of the finite element model will be significantly improved once hydrostatic initialisation can be fully utilised with the LS-DYNA/USA software.http://dx.doi.org/10.1155/2000/984015 |
| spellingShingle | Lloyd Hammond Raphael Grzebieta Structural Response of Submerged Air-Backed Plates by Experimental and Numerical Analyses Shock and Vibration |
| title | Structural Response of Submerged Air-Backed Plates by Experimental and Numerical Analyses |
| title_full | Structural Response of Submerged Air-Backed Plates by Experimental and Numerical Analyses |
| title_fullStr | Structural Response of Submerged Air-Backed Plates by Experimental and Numerical Analyses |
| title_full_unstemmed | Structural Response of Submerged Air-Backed Plates by Experimental and Numerical Analyses |
| title_short | Structural Response of Submerged Air-Backed Plates by Experimental and Numerical Analyses |
| title_sort | structural response of submerged air backed plates by experimental and numerical analyses |
| url | http://dx.doi.org/10.1155/2000/984015 |
| work_keys_str_mv | AT lloydhammond structuralresponseofsubmergedairbackedplatesbyexperimentalandnumericalanalyses AT raphaelgrzebieta structuralresponseofsubmergedairbackedplatesbyexperimentalandnumericalanalyses |