A design approach for the bed of nails technique

This work demonstrates a numerical approach to design drive conditions for isentropic compression experiments using the ‘bed of nails’ (BON) technique. The approach features a genetic algorithm to evaluate the nail shape within a BON. Three cases are investigated where a linearly increasing drive du...

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Bibliographic Details
Main Authors: Johnson, C. R., Brown, J. L., Farfan, B. G., Alexander, C. S.
Format: Conference Proceeding
Language:English
Subjects:
Genetic algorithms
Online Access:Get full text
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Summary:This work demonstrates a numerical approach to design drive conditions for isentropic compression experiments using the ‘bed of nails’ (BON) technique. The approach features a genetic algorithm to evaluate the nail shape within a BON. Three cases are investigated where a linearly increasing drive duration of 1.0 μs to peak stresses of 4.3, 7.8, and 11.7 GPa are specified. Techniques used in this work are effective at generating a desired drive condition with a nominally uniform stress front. Dimensions for each BON impactor is provided for future experimental validation.
ISSN:0094-243X
1551-7616
DOI:10.1063/12.0028674