A Pegasus dynamic liner friction experiment
作者:
J. E. Hammerberg,
G. A. Kyrala,
D. M. Oro,
R. D. Fulton,
W. E. Anderson,
A. W. Obst,
H. Oona,
J. Stokes,
M. D. Wilke,
期刊:
AIP Conference Proceedings
(AIP Available online 1900)
卷期:
Volume 505,
issue 1
页码: 1217-1220
ISSN:0094-243X
年代: 1900
DOI:10.1063/1.1303680
出版商: AIP
数据来源: AIP
摘要:
We report on a pulsed power experiment performed at the Los Alamos National Laboratory Pegasus facility which was designed to measure material flow at metal interfaces driven to high relative velocities. Material motion at and near four flat Ta/Al(6061) interfaces was measured using flash radiographic techniques. A series of fine Pb wires (407 micron diameter) was implanted in the Al normal to the interfaces. The motion of these markers under shock loading provided a picture of material motion in the Al interfacial region. The surface roughness of the interfaces was varied between 32 and 125 micro-inches. We discuss the implications of these measurements for constitutive models of high speed friction and interfacial morphological change. ©2000 American Institute of Physics.
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