Dynamic strength of tantalum under impact

B. Glam; M. Werdiger; Y. Horovitz; E. Moshe; S. L. Pistinner

doi:10.1088/1742-6596/500/11/112029

Dynamic strength of tantalum under impact

B. Glam, M. Werdiger, Y. Horovitz, E. Moshe, S. L. Pistinner

Research output: Contribution to journal › Conference article › peer-review

6 Scopus citations

Abstract

Two sets of plane impact experiments were carried out on tantalum targets (1-2 mm thick): shock re-shock and shock-rarefaction. Some of the experiments were with and some without a LiF window. VISAR diagnostics was used to measure free surface velocity or particle velocity. The VISAR information was utilized to study the equation of state and dynamic strength of tantalum under compression and tension. The Hugoniot pressures in the experiments were roughly 6, 13, and 34 GPa. Coupling between 1d hydrodynamic simulation and a calibrated Zerilli-Armstrong model reproduces the experimental results fairly well. Spall strength extracted from pull back velocity yields a relatively high value of 6.3-6.5 GPa with negligible pressure dependence.

Original language	English
Article number	112029
Journal	Journal of Physics: Conference Series
Volume	500
Issue number	PART 11
DOIs	https://doi.org/10.1088/1742-6596/500/11/112029
State	Published - 1 Jan 2014
Externally published	Yes
Event	18th Biennial Int. Conf. of the APS Topical Group on Shock Compression of Condensed Matter, APS-SCCM 2013 in Conjunction with the 24th Biennial Int. Conf. of the Int. Association for the Advancement of High Pressure Science and Technol., AIRAPT 2013 - Seattle, WA, United States Duration: 7 Jul 2013 → 12 Jul 2013

ASJC Scopus subject areas

General Physics and Astronomy

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10.1088/1742-6596/500/11/112029

Cite this

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title = "Dynamic strength of tantalum under impact",

abstract = "Two sets of plane impact experiments were carried out on tantalum targets (1-2 mm thick): shock re-shock and shock-rarefaction. Some of the experiments were with and some without a LiF window. VISAR diagnostics was used to measure free surface velocity or particle velocity. The VISAR information was utilized to study the equation of state and dynamic strength of tantalum under compression and tension. The Hugoniot pressures in the experiments were roughly 6, 13, and 34 GPa. Coupling between 1d hydrodynamic simulation and a calibrated Zerilli-Armstrong model reproduces the experimental results fairly well. Spall strength extracted from pull back velocity yields a relatively high value of 6.3-6.5 GPa with negligible pressure dependence.",

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T1 - Dynamic strength of tantalum under impact

AU - Glam, B.

AU - Werdiger, M.

AU - Horovitz, Y.

AU - Moshe, E.

AU - Pistinner, S. L.

PY - 2014/1/1

Y1 - 2014/1/1

N2 - Two sets of plane impact experiments were carried out on tantalum targets (1-2 mm thick): shock re-shock and shock-rarefaction. Some of the experiments were with and some without a LiF window. VISAR diagnostics was used to measure free surface velocity or particle velocity. The VISAR information was utilized to study the equation of state and dynamic strength of tantalum under compression and tension. The Hugoniot pressures in the experiments were roughly 6, 13, and 34 GPa. Coupling between 1d hydrodynamic simulation and a calibrated Zerilli-Armstrong model reproduces the experimental results fairly well. Spall strength extracted from pull back velocity yields a relatively high value of 6.3-6.5 GPa with negligible pressure dependence.

AB - Two sets of plane impact experiments were carried out on tantalum targets (1-2 mm thick): shock re-shock and shock-rarefaction. Some of the experiments were with and some without a LiF window. VISAR diagnostics was used to measure free surface velocity or particle velocity. The VISAR information was utilized to study the equation of state and dynamic strength of tantalum under compression and tension. The Hugoniot pressures in the experiments were roughly 6, 13, and 34 GPa. Coupling between 1d hydrodynamic simulation and a calibrated Zerilli-Armstrong model reproduces the experimental results fairly well. Spall strength extracted from pull back velocity yields a relatively high value of 6.3-6.5 GPa with negligible pressure dependence.

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T2 - 18th Biennial Int. Conf. of the APS Topical Group on Shock Compression of Condensed Matter, APS-SCCM 2013 in Conjunction with the 24th Biennial Int. Conf. of the Int. Association for the Advancement of High Pressure Science and Technol., AIRAPT 2013

Y2 - 7 July 2013 through 12 July 2013

ER -

Dynamic strength of tantalum under impact

Abstract

ASJC Scopus subject areas

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