Impact loading of an aluminum/alumina composite

J. N. Johnson; R. S. Hixson; George Thompson Gray

Impact loading of an aluminum/alumina composite

J. N. Johnson
, R. S. Hixson
, George Thompson Gray

Los Alamos National Laboratory

Research output: Contribution to journal › Conference article

4 Scopus citations

Abstract

The combined demands of increased strength and reduced weight in modern dynamic structural applications require improved understanding of composite materials subject to impact conditions. In order to isolate and identify individual contributions to composite material behavior under these conditions, an experimental and theoretical program was undertaken to examine dynamic behavior of an aluminum/alumina composite consisting of a 6061-T6 aluminum matrix containing elastic, spherical Al₂O₃ inclusions (10 percent by volume, average diameter approx. 25 microns). Parallel impact experiments are conducted on these composites and on pure 6061-T6 aluminum samples. This combination provides a direct and immediate qualitative picture of the effect of Al₂O₃ inclusions on the dynamic response of the composite in compression, release, and spallation. Additional experimental information is provided by post-shock reload tests of shock-recovered samples at quasi-static and intermediate strain rates.

Original language	English
Pages (from-to)	325-330
Number of pages	6
Journal	Journal De Physique. IV : JP
Volume	4
Issue number	8
State	Published - Sep 1 1994
Event	Proceedings of the International Conference on Mechanical and Physical Behaviour of Materials under Dynamic Loading - Duration: Sep 1 1994 → …

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@article{94df139c2e2a4eadb120d6c63697a860,

title = "Impact loading of an aluminum/alumina composite",

abstract = "The combined demands of increased strength and reduced weight in modern dynamic structural applications require improved understanding of composite materials subject to impact conditions. In order to isolate and identify individual contributions to composite material behavior under these conditions, an experimental and theoretical program was undertaken to examine dynamic behavior of an aluminum/alumina composite consisting of a 6061-T6 aluminum matrix containing elastic, spherical Al2O3 inclusions (10 percent by volume, average diameter approx. 25 microns). Parallel impact experiments are conducted on these composites and on pure 6061-T6 aluminum samples. This combination provides a direct and immediate qualitative picture of the effect of Al2O3 inclusions on the dynamic response of the composite in compression, release, and spallation. Additional experimental information is provided by post-shock reload tests of shock-recovered samples at quasi-static and intermediate strain rates.",

author = "Johnson, \{J. N.\} and Hixson, \{R. S.\} and Gray, \{George Thompson\}",

year = "1994",

month = sep,

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journal = "Journal De Physique. IV : JP",

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note = "Proceedings of the International Conference on Mechanical and Physical Behaviour of Materials under Dynamic Loading ; Conference date: 01-09-1994",

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TY - JOUR

T1 - Impact loading of an aluminum/alumina composite

AU - Johnson, J. N.

AU - Hixson, R. S.

AU - Gray, George Thompson

PY - 1994/9/1

Y1 - 1994/9/1

N2 - The combined demands of increased strength and reduced weight in modern dynamic structural applications require improved understanding of composite materials subject to impact conditions. In order to isolate and identify individual contributions to composite material behavior under these conditions, an experimental and theoretical program was undertaken to examine dynamic behavior of an aluminum/alumina composite consisting of a 6061-T6 aluminum matrix containing elastic, spherical Al2O3 inclusions (10 percent by volume, average diameter approx. 25 microns). Parallel impact experiments are conducted on these composites and on pure 6061-T6 aluminum samples. This combination provides a direct and immediate qualitative picture of the effect of Al2O3 inclusions on the dynamic response of the composite in compression, release, and spallation. Additional experimental information is provided by post-shock reload tests of shock-recovered samples at quasi-static and intermediate strain rates.

AB - The combined demands of increased strength and reduced weight in modern dynamic structural applications require improved understanding of composite materials subject to impact conditions. In order to isolate and identify individual contributions to composite material behavior under these conditions, an experimental and theoretical program was undertaken to examine dynamic behavior of an aluminum/alumina composite consisting of a 6061-T6 aluminum matrix containing elastic, spherical Al2O3 inclusions (10 percent by volume, average diameter approx. 25 microns). Parallel impact experiments are conducted on these composites and on pure 6061-T6 aluminum samples. This combination provides a direct and immediate qualitative picture of the effect of Al2O3 inclusions on the dynamic response of the composite in compression, release, and spallation. Additional experimental information is provided by post-shock reload tests of shock-recovered samples at quasi-static and intermediate strain rates.

UR - https://www.scopus.com/pages/publications/0028507450

M3 - Conference article

SN - 1155-4339

VL - 4

SP - 325

EP - 330

JO - Journal De Physique. IV : JP

JF - Journal De Physique. IV : JP

IS - 8

T2 - Proceedings of the International Conference on Mechanical and Physical Behaviour of Materials under Dynamic Loading

Y2 - 1 September 1994

ER -

Impact loading of an aluminum/alumina composite

Abstract

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