An Improved Impactor Design for Eliminating Spallation in High-Impedance Flyers During Hypervelocity Launch
Spallation in a high-impedance tantalum flyer was confirmed by using a specially designed hypervelocity launch (HVL) experiment, thereby indicating that the conventional flyer was unsuitable for equation of state (EOS) research on materials under ultra-high pressure. Based on the analysis and interp...
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| Veröffentlicht in: | Experimental mechanics 2016-11, Vol.56 (9), p.1661-1664 |
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| creator | Bai, J. S. Wang, X. Pei, X. Y. Wang, Y. Yu, Y. Y. Shen, Q. Luo, G. Q. Dai, C. D. Tan, H. Zhang, L. M. Wu, Q. |
| description | Spallation in a high-impedance tantalum flyer was confirmed by using a specially designed hypervelocity launch (HVL) experiment, thereby indicating that the conventional flyer was unsuitable for equation of state (EOS) research on materials under ultra-high pressure. Based on the analysis and interpretation of the experimental data and the spallation’s reproduction via a high-fidelity detonation and shock (HDS) wave code, two possible methods to eliminate the spallation were proposed: (1) changing the impactor structure, which could greatly reduce spallation, and (2) altering the impactor material, which could completely eliminate the remaining spallation. We conducted a set of HVL experiments with an improved impactor design in which a high-impedance tantalum flyer was accelerated up to 10 km/s, and no spallation was found, demonstrating the effectiveness of the improved method for performing EOS research on materials under pressures of terapascals loaded by a three-stage light gas gun. |
| doi_str_mv | 10.1007/s11340-016-0155-0 |
| format | Article |
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S. ; Wang, X. ; Pei, X. Y. ; Wang, Y. ; Yu, Y. Y. ; Shen, Q. ; Luo, G. Q. ; Dai, C. D. ; Tan, H. ; Zhang, L. M. ; Wu, Q.</creator><creatorcontrib>Bai, J. S. ; Wang, X. ; Pei, X. Y. ; Wang, Y. ; Yu, Y. Y. ; Shen, Q. ; Luo, G. Q. ; Dai, C. D. ; Tan, H. ; Zhang, L. M. ; Wu, Q.</creatorcontrib><description>Spallation in a high-impedance tantalum flyer was confirmed by using a specially designed hypervelocity launch (HVL) experiment, thereby indicating that the conventional flyer was unsuitable for equation of state (EOS) research on materials under ultra-high pressure. Based on the analysis and interpretation of the experimental data and the spallation’s reproduction via a high-fidelity detonation and shock (HDS) wave code, two possible methods to eliminate the spallation were proposed: (1) changing the impactor structure, which could greatly reduce spallation, and (2) altering the impactor material, which could completely eliminate the remaining spallation. We conducted a set of HVL experiments with an improved impactor design in which a high-impedance tantalum flyer was accelerated up to 10 km/s, and no spallation was found, demonstrating the effectiveness of the improved method for performing EOS research on materials under pressures of terapascals loaded by a three-stage light gas gun.</description><identifier>ISSN: 0014-4851</identifier><identifier>EISSN: 1741-2765</identifier><identifier>DOI: 10.1007/s11340-016-0155-0</identifier><language>eng</language><publisher>New York: Springer US</publisher><subject>Biomedical Engineering and Bioengineering ; Brief Technical Note ; Characterization and Evaluation of Materials ; Control ; Design improvements ; Detonation ; Dynamical Systems ; Engineering ; Hypervelocity ; Impedance ; Lasers ; Optical Devices ; Optics ; Photonics ; Solid Mechanics ; Spallation ; Tantalum ; Vibration</subject><ispartof>Experimental mechanics, 2016-11, Vol.56 (9), p.1661-1664</ispartof><rights>Society for Experimental Mechanics 2016</rights><rights>Copyright Springer Science & Business Media 2016</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c316t-8e4584ccd153265c89be0398ffe245cf2f9b4b1ff6b5aa609b641b374d89849e3</citedby><cites>FETCH-LOGICAL-c316t-8e4584ccd153265c89be0398ffe245cf2f9b4b1ff6b5aa609b641b374d89849e3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s11340-016-0155-0$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s11340-016-0155-0$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,780,784,27924,27925,41488,42557,51319</link.rule.ids></links><search><creatorcontrib>Bai, J. 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Based on the analysis and interpretation of the experimental data and the spallation’s reproduction via a high-fidelity detonation and shock (HDS) wave code, two possible methods to eliminate the spallation were proposed: (1) changing the impactor structure, which could greatly reduce spallation, and (2) altering the impactor material, which could completely eliminate the remaining spallation. We conducted a set of HVL experiments with an improved impactor design in which a high-impedance tantalum flyer was accelerated up to 10 km/s, and no spallation was found, demonstrating the effectiveness of the improved method for performing EOS research on materials under pressures of terapascals loaded by a three-stage light gas gun.</description><subject>Biomedical Engineering and Bioengineering</subject><subject>Brief Technical Note</subject><subject>Characterization and Evaluation of Materials</subject><subject>Control</subject><subject>Design improvements</subject><subject>Detonation</subject><subject>Dynamical Systems</subject><subject>Engineering</subject><subject>Hypervelocity</subject><subject>Impedance</subject><subject>Lasers</subject><subject>Optical Devices</subject><subject>Optics</subject><subject>Photonics</subject><subject>Solid Mechanics</subject><subject>Spallation</subject><subject>Tantalum</subject><subject>Vibration</subject><issn>0014-4851</issn><issn>1741-2765</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2016</creationdate><recordtype>article</recordtype><recordid>eNp1kD9PwzAQxS0EEqXwAdgsMQd8iZ04Y9U_tFIlBmC2HMduU1In2EmlfHschYGF4XRveL87vYfQI5BnICR78QAJJRGBNAxjEblCM8goRHGWsms0IwRoRDmDW3Tn_YkEJsniGfpaWLw7t6656HIUUnWNwyvtq4PFJsh1XZ0rK7vKHvB7K-s6yMbiyuJtdThGAdGltErjTT1o5_Gqd6N1O7TaXXTdqKob8F72Vh3v0Y2RtdcPv3uOPjfrj-U22r-97paLfaQSSLuIa8o4VaoElsQpUzwvNElyboyOKVMmNnlBCzAmLZiUKcmLlEKRZLTkOae5TuboabobYn332nfi1PTOhpcCOCecUaBJcMHkUq7x3mkjWledpRsEEDF2KqZORehUjJ0KEph4Ynw7ptTuz-V_oR8EcXnv</recordid><startdate>20161101</startdate><enddate>20161101</enddate><creator>Bai, J. 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S.</creatorcontrib><creatorcontrib>Wang, X.</creatorcontrib><creatorcontrib>Pei, X. Y.</creatorcontrib><creatorcontrib>Wang, Y.</creatorcontrib><creatorcontrib>Yu, Y. Y.</creatorcontrib><creatorcontrib>Shen, Q.</creatorcontrib><creatorcontrib>Luo, G. Q.</creatorcontrib><creatorcontrib>Dai, C. D.</creatorcontrib><creatorcontrib>Tan, H.</creatorcontrib><creatorcontrib>Zhang, L. M.</creatorcontrib><creatorcontrib>Wu, Q.</creatorcontrib><collection>CrossRef</collection><jtitle>Experimental mechanics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Bai, J. S.</au><au>Wang, X.</au><au>Pei, X. Y.</au><au>Wang, Y.</au><au>Yu, Y. Y.</au><au>Shen, Q.</au><au>Luo, G. Q.</au><au>Dai, C. D.</au><au>Tan, H.</au><au>Zhang, L. M.</au><au>Wu, Q.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>An Improved Impactor Design for Eliminating Spallation in High-Impedance Flyers During Hypervelocity Launch</atitle><jtitle>Experimental mechanics</jtitle><stitle>Exp Mech</stitle><date>2016-11-01</date><risdate>2016</risdate><volume>56</volume><issue>9</issue><spage>1661</spage><epage>1664</epage><pages>1661-1664</pages><issn>0014-4851</issn><eissn>1741-2765</eissn><abstract>Spallation in a high-impedance tantalum flyer was confirmed by using a specially designed hypervelocity launch (HVL) experiment, thereby indicating that the conventional flyer was unsuitable for equation of state (EOS) research on materials under ultra-high pressure. 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| subjects | Biomedical Engineering and Bioengineering Brief Technical Note Characterization and Evaluation of Materials Control Design improvements Detonation Dynamical Systems Engineering Hypervelocity Impedance Lasers Optical Devices Optics Photonics Solid Mechanics Spallation Tantalum Vibration |
| title | An Improved Impactor Design for Eliminating Spallation in High-Impedance Flyers During Hypervelocity Launch |
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