Actions for Segmented Aluminum Honeycomb Characteristics in T-Direction, Dynamic Crush Environments [electronic resource].

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Segmented Aluminum Honeycomb Characteristics in T-Direction, Dynamic Crush Environments [electronic resource].

Published
Washington, D.C. : United States. Dept. of Energy, 2000.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description
70 pages : digital, PDF file
Additional Creators
Sandia National Laboratories, United States. Department of Energy, and United States. Department of Energy. Office of Scientific and Technical Information
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Summary
Thirteen segmented aluminum honeycomb samples (5 in. diameter and 1.5 in. height) have been crushed in an experimental configuration that uses a drop table impact machine. The 38.0 pcf bulk density samples are a unique segmented geometry that allows the samples to be crushed while maintaining a constant cross-sectional area. A crush weight of 175 lb was used to determine the rate sensitivity of the honeycomb's highest strength orientation, T-direction, in a dynamic environment of ≈50 fps impact velocity. Experiments were conducted for two honeycomb manufacturers and at two temperatures, ambient and +165 F. Independent measurements of the crush force were made with a custom load cell and a force derived from acceleration measurements on the drop table using the Sum of Weighted Accelerations Technique with a Calibrated Force (SWAT-CAL). Normalized stress-strain curves for all thirteen experiments are included and have excellent repeatability. These data are strictly valid for material characteristics in the T orientation because the cross-sectional area of the honeycomb did not change during the crush. The dynamic crush data have a consistent increase in crush strength of ∼7--19% as compared to quasi-static data and suggest that dynamic performance may be inferred from static tests. An uncertainty analysis estimates the error in these data is ± 11%.
Report Numbers
E 1.99:sand2000-2109
sand2000-2109
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Note
Published through SciTech Connect.
08/23/2000.
"sand2000-2109"
NUSSER,MICHAEL A.; BATEMAN,VESTA I.; SWANSON,LLOYD H.; BROWN,FREDERICK A.
Type of Report and Period Covered Note
Topical;
Funding Information
AC04-94AL85000
View MARC record | catkey: 14447333