The preheating effect on the dynamic strength of aluminium containing helium bubbles

B. Glam; M. Strauss; S. Eliezer; D. Moreno

doi:10.1088/1742-6596/500/18/182012

The preheating effect on the dynamic strength of aluminium containing helium bubbles

B. Glam
, M. Strauss
, S. Eliezer
, D. Moreno

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

5 Scopus citations

Abstract

The influence of helium bubbles or boron inclusions in an aluminum target is studied by plane impact experiments with a gas gun and VISAR diagnostic. The experiments were carried out on targets with initial temperatures of 25 °C and near melting at 600 °C. The Hugoniot elastic limit yHEL for all targets becomes substantially higher at 600 °C, related to the phonon drag mechanism at high strain rates and high temperatures. The spall strength for all targets becomes substantially lower at 600 °C. The spall strength of Al- ¹⁰B with helium bubbles is significantly reduced in comparison to Al-¹⁰B without helium, while at 25 °C the spall strength is the same for both cases. This effect might be explained by a local strength reduction of the aluminium at pre-heating conditions, allowing the helium bubbles to be more dominant in the spallation process

Original language	English
Article number	182012
Journal	Journal of Physics: Conference Series
Volume	500
Issue number	PART 18
DOIs	https://doi.org/10.1088/1742-6596/500/18/182012
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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10.1088/1742-6596/500/18/182012

Cite this

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title = "The preheating effect on the dynamic strength of aluminium containing helium bubbles",

abstract = "The influence of helium bubbles or boron inclusions in an aluminum target is studied by plane impact experiments with a gas gun and VISAR diagnostic. The experiments were carried out on targets with initial temperatures of 25 °C and near melting at 600 °C. The Hugoniot elastic limit yHEL for all targets becomes substantially higher at 600 °C, related to the phonon drag mechanism at high strain rates and high temperatures. The spall strength for all targets becomes substantially lower at 600 °C. The spall strength of Al- 10B with helium bubbles is significantly reduced in comparison to Al-10B without helium, while at 25 °C the spall strength is the same for both cases. This effect might be explained by a local strength reduction of the aluminium at pre-heating conditions, allowing the helium bubbles to be more dominant in the spallation process",

author = "B. Glam and M. Strauss and S. Eliezer and D. Moreno",

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TY - JOUR

T1 - The preheating effect on the dynamic strength of aluminium containing helium bubbles

AU - Glam, B.

AU - Strauss, M.

AU - Eliezer, S.

AU - Moreno, D.

PY - 2014/1/1

Y1 - 2014/1/1

N2 - The influence of helium bubbles or boron inclusions in an aluminum target is studied by plane impact experiments with a gas gun and VISAR diagnostic. The experiments were carried out on targets with initial temperatures of 25 °C and near melting at 600 °C. The Hugoniot elastic limit yHEL for all targets becomes substantially higher at 600 °C, related to the phonon drag mechanism at high strain rates and high temperatures. The spall strength for all targets becomes substantially lower at 600 °C. The spall strength of Al- 10B with helium bubbles is significantly reduced in comparison to Al-10B without helium, while at 25 °C the spall strength is the same for both cases. This effect might be explained by a local strength reduction of the aluminium at pre-heating conditions, allowing the helium bubbles to be more dominant in the spallation process

AB - The influence of helium bubbles or boron inclusions in an aluminum target is studied by plane impact experiments with a gas gun and VISAR diagnostic. The experiments were carried out on targets with initial temperatures of 25 °C and near melting at 600 °C. The Hugoniot elastic limit yHEL for all targets becomes substantially higher at 600 °C, related to the phonon drag mechanism at high strain rates and high temperatures. The spall strength for all targets becomes substantially lower at 600 °C. The spall strength of Al- 10B with helium bubbles is significantly reduced in comparison to Al-10B without helium, while at 25 °C the spall strength is the same for both cases. This effect might be explained by a local strength reduction of the aluminium at pre-heating conditions, allowing the helium bubbles to be more dominant in the spallation process

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DO - 10.1088/1742-6596/500/18/182012

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SN - 1742-6588

VL - 500

JO - Journal of Physics: Conference Series

JF - Journal of Physics: Conference Series

IS - PART 18

M1 - 182012

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 -

The preheating effect on the dynamic strength of aluminium containing helium bubbles

Abstract

ASJC Scopus subject areas

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