Explosive-induced shock damage in copper and recompression of the damaged region

We have studied the dynamic spall process for copper samples in contact with detonating low-performance explosives. When a triangular shaped shock wave from detonation moves through a sample and reflects from the free surface, tension develops immediately, one or more damaged layers can form, and a...
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Autor*in:	Turley, W. D [verfasserIn] Stevens, G. D Hixson, R. S Cerreta, E. K Daykin, E. P Graeve, O. A La Lone, B. M Novitskaya, E Perez, C Rigg, P. A Veeser, L. R

Format:	Artikel
Sprache:	Englisch

Erschienen:	2016

Rechteinformationen:	Nutzungsrecht: © Author(s)

Übergeordnetes Werk:	Enthalten in: Journal of applied physics - Melville, NY : AIP, 1937, 120(2016), 8
Übergeordnetes Werk:	volume:120 ; year:2016 ; number:8

Links:	Volltext Link aufrufen

DOI / URN:	10.1063/1.4962013

Katalog-ID:	OLC1982190655

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520			\|a We have studied the dynamic spall process for copper samples in contact with detonating low-performance explosives. When a triangular shaped shock wave from detonation moves through a sample and reflects from the free surface, tension develops immediately, one or more damaged layers can form, and a spall scab can separate from the sample and move ahead of the remaining target material. For dynamic experiments, we used time-resolved velocimetry and x-ray radiography. Soft-recovered samples were analyzed using optical imaging and microscopy. Computer simulations were used to guide experiment design. We observe that for some target thicknesses the spall scab continues to run ahead of the rest of the sample, but for thinner samples, the detonation product gases accelerate the sample enough for it to impact the spall scab several microseconds or more after the initial damage formation. Our data also show signatures in the form of a late-time reshock in the time-resolved data, which support this computational prediction. A primary goal of this research was to study the wave interactions and damage processes for explosives-loaded copper and to look for evidence of this postulated recompression event. We found both experimentally and computationally that we could tailor the magnitude of the initial and recompression shocks by varying the explosive drive and the copper sample thickness; thin samples had a large recompression after spall, whereas thick samples did not recompress at all. Samples that did not recompress had spall scabs that completely separated from the sample, whereas samples with recompression remained intact. This suggests that the hypothesized recompression process closes voids in the damage layer or otherwise halts the spall formation process. This is a somewhat surprising and, in some ways controversial, result, and the one that warrants further research in the shock compression community.
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700	1		\|a Graeve, O. A \|4 oth
700	1		\|a La Lone, B. M \|4 oth
700	1		\|a Novitskaya, E \|4 oth
700	1		\|a Perez, C \|4 oth
700	1		\|a Rigg, P. A \|4 oth
700	1		\|a Veeser, L. R \|4 oth
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allfields	10.1063/1.4962013 doi PQ20161201 (DE-627)OLC1982190655 (DE-599)GBVOLC1982190655 (PRQ)s595-52f1ea3b9250c85750d675caaf2ee4abf321a5f2b880fcea17c1b626e0e7dcc60 (KEY)0076740920160000120000800000explosiveinducedshockdamageincopperandrecompressio DE-627 ger DE-627 rakwb eng 530 DE-600 Turley, W. D verfasserin aut Explosive-induced shock damage in copper and recompression of the damaged region 2016 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier We have studied the dynamic spall process for copper samples in contact with detonating low-performance explosives. When a triangular shaped shock wave from detonation moves through a sample and reflects from the free surface, tension develops immediately, one or more damaged layers can form, and a spall scab can separate from the sample and move ahead of the remaining target material. For dynamic experiments, we used time-resolved velocimetry and x-ray radiography. Soft-recovered samples were analyzed using optical imaging and microscopy. Computer simulations were used to guide experiment design. We observe that for some target thicknesses the spall scab continues to run ahead of the rest of the sample, but for thinner samples, the detonation product gases accelerate the sample enough for it to impact the spall scab several microseconds or more after the initial damage formation. Our data also show signatures in the form of a late-time reshock in the time-resolved data, which support this computational prediction. A primary goal of this research was to study the wave interactions and damage processes for explosives-loaded copper and to look for evidence of this postulated recompression event. We found both experimentally and computationally that we could tailor the magnitude of the initial and recompression shocks by varying the explosive drive and the copper sample thickness; thin samples had a large recompression after spall, whereas thick samples did not recompress at all. Samples that did not recompress had spall scabs that completely separated from the sample, whereas samples with recompression remained intact. This suggests that the hypothesized recompression process closes voids in the damage layer or otherwise halts the spall formation process. This is a somewhat surprising and, in some ways controversial, result, and the one that warrants further research in the shock compression community. Nutzungsrecht: © Author(s) Stevens, G. D oth Hixson, R. S oth Cerreta, E. K oth Daykin, E. P oth Graeve, O. A oth La Lone, B. M oth Novitskaya, E oth Perez, C oth Rigg, P. A oth Veeser, L. R oth Enthalten in Journal of applied physics Melville, NY : AIP, 1937 120(2016), 8 (DE-627)129079030 (DE-600)3112-4 (DE-576)014411652 0021-8979 nnns volume:120 year:2016 number:8 http://dx.doi.org/10.1063/1.4962013 Volltext http://dx.doi.org/10.1063/1.4962013 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-PHY GBV_ILN_21 GBV_ILN_59 GBV_ILN_70 GBV_ILN_2004 GBV_ILN_2279 GBV_ILN_4319 AR 120 2016 8
spelling	10.1063/1.4962013 doi PQ20161201 (DE-627)OLC1982190655 (DE-599)GBVOLC1982190655 (PRQ)s595-52f1ea3b9250c85750d675caaf2ee4abf321a5f2b880fcea17c1b626e0e7dcc60 (KEY)0076740920160000120000800000explosiveinducedshockdamageincopperandrecompressio DE-627 ger DE-627 rakwb eng 530 DE-600 Turley, W. D verfasserin aut Explosive-induced shock damage in copper and recompression of the damaged region 2016 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier We have studied the dynamic spall process for copper samples in contact with detonating low-performance explosives. When a triangular shaped shock wave from detonation moves through a sample and reflects from the free surface, tension develops immediately, one or more damaged layers can form, and a spall scab can separate from the sample and move ahead of the remaining target material. For dynamic experiments, we used time-resolved velocimetry and x-ray radiography. Soft-recovered samples were analyzed using optical imaging and microscopy. Computer simulations were used to guide experiment design. We observe that for some target thicknesses the spall scab continues to run ahead of the rest of the sample, but for thinner samples, the detonation product gases accelerate the sample enough for it to impact the spall scab several microseconds or more after the initial damage formation. Our data also show signatures in the form of a late-time reshock in the time-resolved data, which support this computational prediction. A primary goal of this research was to study the wave interactions and damage processes for explosives-loaded copper and to look for evidence of this postulated recompression event. We found both experimentally and computationally that we could tailor the magnitude of the initial and recompression shocks by varying the explosive drive and the copper sample thickness; thin samples had a large recompression after spall, whereas thick samples did not recompress at all. Samples that did not recompress had spall scabs that completely separated from the sample, whereas samples with recompression remained intact. This suggests that the hypothesized recompression process closes voids in the damage layer or otherwise halts the spall formation process. This is a somewhat surprising and, in some ways controversial, result, and the one that warrants further research in the shock compression community. Nutzungsrecht: © Author(s) Stevens, G. D oth Hixson, R. S oth Cerreta, E. K oth Daykin, E. P oth Graeve, O. A oth La Lone, B. M oth Novitskaya, E oth Perez, C oth Rigg, P. A oth Veeser, L. R oth Enthalten in Journal of applied physics Melville, NY : AIP, 1937 120(2016), 8 (DE-627)129079030 (DE-600)3112-4 (DE-576)014411652 0021-8979 nnns volume:120 year:2016 number:8 http://dx.doi.org/10.1063/1.4962013 Volltext http://dx.doi.org/10.1063/1.4962013 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-PHY GBV_ILN_21 GBV_ILN_59 GBV_ILN_70 GBV_ILN_2004 GBV_ILN_2279 GBV_ILN_4319 AR 120 2016 8
allfields_unstemmed	10.1063/1.4962013 doi PQ20161201 (DE-627)OLC1982190655 (DE-599)GBVOLC1982190655 (PRQ)s595-52f1ea3b9250c85750d675caaf2ee4abf321a5f2b880fcea17c1b626e0e7dcc60 (KEY)0076740920160000120000800000explosiveinducedshockdamageincopperandrecompressio DE-627 ger DE-627 rakwb eng 530 DE-600 Turley, W. D verfasserin aut Explosive-induced shock damage in copper and recompression of the damaged region 2016 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier We have studied the dynamic spall process for copper samples in contact with detonating low-performance explosives. When a triangular shaped shock wave from detonation moves through a sample and reflects from the free surface, tension develops immediately, one or more damaged layers can form, and a spall scab can separate from the sample and move ahead of the remaining target material. For dynamic experiments, we used time-resolved velocimetry and x-ray radiography. Soft-recovered samples were analyzed using optical imaging and microscopy. Computer simulations were used to guide experiment design. We observe that for some target thicknesses the spall scab continues to run ahead of the rest of the sample, but for thinner samples, the detonation product gases accelerate the sample enough for it to impact the spall scab several microseconds or more after the initial damage formation. Our data also show signatures in the form of a late-time reshock in the time-resolved data, which support this computational prediction. A primary goal of this research was to study the wave interactions and damage processes for explosives-loaded copper and to look for evidence of this postulated recompression event. We found both experimentally and computationally that we could tailor the magnitude of the initial and recompression shocks by varying the explosive drive and the copper sample thickness; thin samples had a large recompression after spall, whereas thick samples did not recompress at all. Samples that did not recompress had spall scabs that completely separated from the sample, whereas samples with recompression remained intact. This suggests that the hypothesized recompression process closes voids in the damage layer or otherwise halts the spall formation process. This is a somewhat surprising and, in some ways controversial, result, and the one that warrants further research in the shock compression community. Nutzungsrecht: © Author(s) Stevens, G. D oth Hixson, R. S oth Cerreta, E. K oth Daykin, E. P oth Graeve, O. A oth La Lone, B. M oth Novitskaya, E oth Perez, C oth Rigg, P. A oth Veeser, L. R oth Enthalten in Journal of applied physics Melville, NY : AIP, 1937 120(2016), 8 (DE-627)129079030 (DE-600)3112-4 (DE-576)014411652 0021-8979 nnns volume:120 year:2016 number:8 http://dx.doi.org/10.1063/1.4962013 Volltext http://dx.doi.org/10.1063/1.4962013 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-PHY GBV_ILN_21 GBV_ILN_59 GBV_ILN_70 GBV_ILN_2004 GBV_ILN_2279 GBV_ILN_4319 AR 120 2016 8
allfieldsGer	10.1063/1.4962013 doi PQ20161201 (DE-627)OLC1982190655 (DE-599)GBVOLC1982190655 (PRQ)s595-52f1ea3b9250c85750d675caaf2ee4abf321a5f2b880fcea17c1b626e0e7dcc60 (KEY)0076740920160000120000800000explosiveinducedshockdamageincopperandrecompressio DE-627 ger DE-627 rakwb eng 530 DE-600 Turley, W. D verfasserin aut Explosive-induced shock damage in copper and recompression of the damaged region 2016 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier We have studied the dynamic spall process for copper samples in contact with detonating low-performance explosives. When a triangular shaped shock wave from detonation moves through a sample and reflects from the free surface, tension develops immediately, one or more damaged layers can form, and a spall scab can separate from the sample and move ahead of the remaining target material. For dynamic experiments, we used time-resolved velocimetry and x-ray radiography. Soft-recovered samples were analyzed using optical imaging and microscopy. Computer simulations were used to guide experiment design. We observe that for some target thicknesses the spall scab continues to run ahead of the rest of the sample, but for thinner samples, the detonation product gases accelerate the sample enough for it to impact the spall scab several microseconds or more after the initial damage formation. Our data also show signatures in the form of a late-time reshock in the time-resolved data, which support this computational prediction. A primary goal of this research was to study the wave interactions and damage processes for explosives-loaded copper and to look for evidence of this postulated recompression event. We found both experimentally and computationally that we could tailor the magnitude of the initial and recompression shocks by varying the explosive drive and the copper sample thickness; thin samples had a large recompression after spall, whereas thick samples did not recompress at all. Samples that did not recompress had spall scabs that completely separated from the sample, whereas samples with recompression remained intact. This suggests that the hypothesized recompression process closes voids in the damage layer or otherwise halts the spall formation process. This is a somewhat surprising and, in some ways controversial, result, and the one that warrants further research in the shock compression community. Nutzungsrecht: © Author(s) Stevens, G. D oth Hixson, R. S oth Cerreta, E. K oth Daykin, E. P oth Graeve, O. A oth La Lone, B. M oth Novitskaya, E oth Perez, C oth Rigg, P. A oth Veeser, L. R oth Enthalten in Journal of applied physics Melville, NY : AIP, 1937 120(2016), 8 (DE-627)129079030 (DE-600)3112-4 (DE-576)014411652 0021-8979 nnns volume:120 year:2016 number:8 http://dx.doi.org/10.1063/1.4962013 Volltext http://dx.doi.org/10.1063/1.4962013 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-PHY GBV_ILN_21 GBV_ILN_59 GBV_ILN_70 GBV_ILN_2004 GBV_ILN_2279 GBV_ILN_4319 AR 120 2016 8
allfieldsSound	10.1063/1.4962013 doi PQ20161201 (DE-627)OLC1982190655 (DE-599)GBVOLC1982190655 (PRQ)s595-52f1ea3b9250c85750d675caaf2ee4abf321a5f2b880fcea17c1b626e0e7dcc60 (KEY)0076740920160000120000800000explosiveinducedshockdamageincopperandrecompressio DE-627 ger DE-627 rakwb eng 530 DE-600 Turley, W. D verfasserin aut Explosive-induced shock damage in copper and recompression of the damaged region 2016 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier We have studied the dynamic spall process for copper samples in contact with detonating low-performance explosives. When a triangular shaped shock wave from detonation moves through a sample and reflects from the free surface, tension develops immediately, one or more damaged layers can form, and a spall scab can separate from the sample and move ahead of the remaining target material. For dynamic experiments, we used time-resolved velocimetry and x-ray radiography. Soft-recovered samples were analyzed using optical imaging and microscopy. Computer simulations were used to guide experiment design. We observe that for some target thicknesses the spall scab continues to run ahead of the rest of the sample, but for thinner samples, the detonation product gases accelerate the sample enough for it to impact the spall scab several microseconds or more after the initial damage formation. Our data also show signatures in the form of a late-time reshock in the time-resolved data, which support this computational prediction. A primary goal of this research was to study the wave interactions and damage processes for explosives-loaded copper and to look for evidence of this postulated recompression event. We found both experimentally and computationally that we could tailor the magnitude of the initial and recompression shocks by varying the explosive drive and the copper sample thickness; thin samples had a large recompression after spall, whereas thick samples did not recompress at all. Samples that did not recompress had spall scabs that completely separated from the sample, whereas samples with recompression remained intact. This suggests that the hypothesized recompression process closes voids in the damage layer or otherwise halts the spall formation process. This is a somewhat surprising and, in some ways controversial, result, and the one that warrants further research in the shock compression community. Nutzungsrecht: © Author(s) Stevens, G. D oth Hixson, R. S oth Cerreta, E. K oth Daykin, E. P oth Graeve, O. A oth La Lone, B. M oth Novitskaya, E oth Perez, C oth Rigg, P. A oth Veeser, L. R oth Enthalten in Journal of applied physics Melville, NY : AIP, 1937 120(2016), 8 (DE-627)129079030 (DE-600)3112-4 (DE-576)014411652 0021-8979 nnns volume:120 year:2016 number:8 http://dx.doi.org/10.1063/1.4962013 Volltext http://dx.doi.org/10.1063/1.4962013 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-PHY GBV_ILN_21 GBV_ILN_59 GBV_ILN_70 GBV_ILN_2004 GBV_ILN_2279 GBV_ILN_4319 AR 120 2016 8
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author	Turley, W. D
spellingShingle	Turley, W. D ddc 530 Explosive-induced shock damage in copper and recompression of the damaged region
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topic_title	530 DE-600 Explosive-induced shock damage in copper and recompression of the damaged region
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title	Explosive-induced shock damage in copper and recompression of the damaged region
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title_full	Explosive-induced shock damage in copper and recompression of the damaged region
author_sort	Turley, W. D
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title_sort	explosive-induced shock damage in copper and recompression of the damaged region
title_auth	Explosive-induced shock damage in copper and recompression of the damaged region
abstract	We have studied the dynamic spall process for copper samples in contact with detonating low-performance explosives. When a triangular shaped shock wave from detonation moves through a sample and reflects from the free surface, tension develops immediately, one or more damaged layers can form, and a spall scab can separate from the sample and move ahead of the remaining target material. For dynamic experiments, we used time-resolved velocimetry and x-ray radiography. Soft-recovered samples were analyzed using optical imaging and microscopy. Computer simulations were used to guide experiment design. We observe that for some target thicknesses the spall scab continues to run ahead of the rest of the sample, but for thinner samples, the detonation product gases accelerate the sample enough for it to impact the spall scab several microseconds or more after the initial damage formation. Our data also show signatures in the form of a late-time reshock in the time-resolved data, which support this computational prediction. A primary goal of this research was to study the wave interactions and damage processes for explosives-loaded copper and to look for evidence of this postulated recompression event. We found both experimentally and computationally that we could tailor the magnitude of the initial and recompression shocks by varying the explosive drive and the copper sample thickness; thin samples had a large recompression after spall, whereas thick samples did not recompress at all. Samples that did not recompress had spall scabs that completely separated from the sample, whereas samples with recompression remained intact. This suggests that the hypothesized recompression process closes voids in the damage layer or otherwise halts the spall formation process. This is a somewhat surprising and, in some ways controversial, result, and the one that warrants further research in the shock compression community.
abstractGer	We have studied the dynamic spall process for copper samples in contact with detonating low-performance explosives. When a triangular shaped shock wave from detonation moves through a sample and reflects from the free surface, tension develops immediately, one or more damaged layers can form, and a spall scab can separate from the sample and move ahead of the remaining target material. For dynamic experiments, we used time-resolved velocimetry and x-ray radiography. Soft-recovered samples were analyzed using optical imaging and microscopy. Computer simulations were used to guide experiment design. We observe that for some target thicknesses the spall scab continues to run ahead of the rest of the sample, but for thinner samples, the detonation product gases accelerate the sample enough for it to impact the spall scab several microseconds or more after the initial damage formation. Our data also show signatures in the form of a late-time reshock in the time-resolved data, which support this computational prediction. A primary goal of this research was to study the wave interactions and damage processes for explosives-loaded copper and to look for evidence of this postulated recompression event. We found both experimentally and computationally that we could tailor the magnitude of the initial and recompression shocks by varying the explosive drive and the copper sample thickness; thin samples had a large recompression after spall, whereas thick samples did not recompress at all. Samples that did not recompress had spall scabs that completely separated from the sample, whereas samples with recompression remained intact. This suggests that the hypothesized recompression process closes voids in the damage layer or otherwise halts the spall formation process. This is a somewhat surprising and, in some ways controversial, result, and the one that warrants further research in the shock compression community.
abstract_unstemmed	We have studied the dynamic spall process for copper samples in contact with detonating low-performance explosives. When a triangular shaped shock wave from detonation moves through a sample and reflects from the free surface, tension develops immediately, one or more damaged layers can form, and a spall scab can separate from the sample and move ahead of the remaining target material. For dynamic experiments, we used time-resolved velocimetry and x-ray radiography. Soft-recovered samples were analyzed using optical imaging and microscopy. Computer simulations were used to guide experiment design. We observe that for some target thicknesses the spall scab continues to run ahead of the rest of the sample, but for thinner samples, the detonation product gases accelerate the sample enough for it to impact the spall scab several microseconds or more after the initial damage formation. Our data also show signatures in the form of a late-time reshock in the time-resolved data, which support this computational prediction. A primary goal of this research was to study the wave interactions and damage processes for explosives-loaded copper and to look for evidence of this postulated recompression event. We found both experimentally and computationally that we could tailor the magnitude of the initial and recompression shocks by varying the explosive drive and the copper sample thickness; thin samples had a large recompression after spall, whereas thick samples did not recompress at all. Samples that did not recompress had spall scabs that completely separated from the sample, whereas samples with recompression remained intact. This suggests that the hypothesized recompression process closes voids in the damage layer or otherwise halts the spall formation process. This is a somewhat surprising and, in some ways controversial, result, and the one that warrants further research in the shock compression community.
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container_issue	8
title_short	Explosive-induced shock damage in copper and recompression of the damaged region
url	http://dx.doi.org/10.1063/1.4962013
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author2	Stevens, G. D Hixson, R. S Cerreta, E. K Daykin, E. P Graeve, O. A La Lone, B. M Novitskaya, E Perez, C Rigg, P. A Veeser, L. R
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up_date	2024-07-03T16:17:54.389Z
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