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Title: Macroscopic crack formation and extension in pristine and artificially aged PBX 9501

Conference ·
OSTI ID:984525

A technique has been developed to quantitatively describe macroscopic cracks, both their location and extent, in heterogeneous high explosive and mock materials. By combining such a technique with the deformation field measurement using digital image correlation (DIC), we conduct observation and measurement of the initiation, extension, and coalescence of internal cracks in the compression of Brazilian disk made of pristine and artificially aged PBX 9501 hjgh explosives. Our results conclude quantitatively that aged PBX 9501 is not only weaker but also much more brittle than the pristine one, thus is more susceptible to macroscopic cracking.

Research Organization:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC52-06NA25396
OSTI ID:
984525
Report Number(s):
LA-UR-10-00324; LA-UR-10-324; TRN: US201016%%1372
Resource Relation:
Conference: The 14th International Detonation Symposium ; April 11, 2010 ; Coeur d'Alene, Idaho
Country of Publication:
United States
Language:
English