Characterizing shock waves in hydrogel using high speed imaging and a fiber-optic probe hydrophone
The impact of a stainless steel disk-shaped projectile launched by a single-stage light gas gun is used to generate planar shock waves with amplitudes on the order of 10 2 MPa in a hydrogel target material. These shock waves are characterized using ultra-high-speed imaging as well as a fiber-optic p...
| Glavni autori: | , , , , , , |
|---|---|
| Format: | Journal article |
| Izdano: |
AIP Publishing
2017
|
| _version_ | 1826273859610869760 |
|---|---|
| author | Anderson, PA Betney, MR Doyle, HW Tully, B Ventikos, Y Hawker, NA Roy, RA |
| author_facet | Anderson, PA Betney, MR Doyle, HW Tully, B Ventikos, Y Hawker, NA Roy, RA |
| author_sort | Anderson, PA |
| collection | OXFORD |
| description | The impact of a stainless steel disk-shaped projectile launched by a single-stage light gas gun is used to generate planar shock waves with amplitudes on the order of 10 2 MPa in a hydrogel target material. These shock waves are characterized using ultra-high-speed imaging as well as a fiber-optic probe hydrophone. Although the hydrogel equation of state (EOS) is unknown, the combination of these measurements with conservation of mass and momentum allows us to calculate pressure. It is also shown that although the hydrogel behaves similarly to water, the use of a water EOS underpredicts pressure amplitudes in the hydrogel by ~10% at the shock front. Further, the water EOS predicts pressures approximately 2% higher than those determined by conservation laws for a given value of the shock velocity. Shot to shot repeatability is controlled to within 10%, with the shock speed and pressure increasing as a function of the velocity of the projectile at impact. Thus the projectile velocity may be used as an adequate predictor of shock conditions in future work with a restricted suite of diagnostics. |
| first_indexed | 2024-03-06T22:34:38Z |
| format | Journal article |
| id | oxford-uuid:597637b8-f0db-4582-9801-cae27bcf7d17 |
| institution | University of Oxford |
| last_indexed | 2024-03-06T22:34:38Z |
| publishDate | 2017 |
| publisher | AIP Publishing |
| record_format | dspace |
| spelling | oxford-uuid:597637b8-f0db-4582-9801-cae27bcf7d172022-03-26T17:09:54ZCharacterizing shock waves in hydrogel using high speed imaging and a fiber-optic probe hydrophoneJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:597637b8-f0db-4582-9801-cae27bcf7d17Symplectic Elements at OxfordAIP Publishing2017Anderson, PABetney, MRDoyle, HWTully, BVentikos, YHawker, NARoy, RAThe impact of a stainless steel disk-shaped projectile launched by a single-stage light gas gun is used to generate planar shock waves with amplitudes on the order of 10 2 MPa in a hydrogel target material. These shock waves are characterized using ultra-high-speed imaging as well as a fiber-optic probe hydrophone. Although the hydrogel equation of state (EOS) is unknown, the combination of these measurements with conservation of mass and momentum allows us to calculate pressure. It is also shown that although the hydrogel behaves similarly to water, the use of a water EOS underpredicts pressure amplitudes in the hydrogel by ~10% at the shock front. Further, the water EOS predicts pressures approximately 2% higher than those determined by conservation laws for a given value of the shock velocity. Shot to shot repeatability is controlled to within 10%, with the shock speed and pressure increasing as a function of the velocity of the projectile at impact. Thus the projectile velocity may be used as an adequate predictor of shock conditions in future work with a restricted suite of diagnostics. |
| spellingShingle | Anderson, PA Betney, MR Doyle, HW Tully, B Ventikos, Y Hawker, NA Roy, RA Characterizing shock waves in hydrogel using high speed imaging and a fiber-optic probe hydrophone |
| title | Characterizing shock waves in hydrogel using high speed imaging and a fiber-optic probe hydrophone |
| title_full | Characterizing shock waves in hydrogel using high speed imaging and a fiber-optic probe hydrophone |
| title_fullStr | Characterizing shock waves in hydrogel using high speed imaging and a fiber-optic probe hydrophone |
| title_full_unstemmed | Characterizing shock waves in hydrogel using high speed imaging and a fiber-optic probe hydrophone |
| title_short | Characterizing shock waves in hydrogel using high speed imaging and a fiber-optic probe hydrophone |
| title_sort | characterizing shock waves in hydrogel using high speed imaging and a fiber optic probe hydrophone |
| work_keys_str_mv | AT andersonpa characterizingshockwavesinhydrogelusinghighspeedimagingandafiberopticprobehydrophone AT betneymr characterizingshockwavesinhydrogelusinghighspeedimagingandafiberopticprobehydrophone AT doylehw characterizingshockwavesinhydrogelusinghighspeedimagingandafiberopticprobehydrophone AT tullyb characterizingshockwavesinhydrogelusinghighspeedimagingandafiberopticprobehydrophone AT ventikosy characterizingshockwavesinhydrogelusinghighspeedimagingandafiberopticprobehydrophone AT hawkerna characterizingshockwavesinhydrogelusinghighspeedimagingandafiberopticprobehydrophone AT royra characterizingshockwavesinhydrogelusinghighspeedimagingandafiberopticprobehydrophone |