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Title: Investigation of the fracture and fragmentation of explosively driven rings and cylinders

Abstract

Cylinders and rings fabricated from AerMet{reg_sign} 100 alloy and AISI 1018 steel have been explosively driven to fragmentation in order to determine the fracture strains for these materials under plane strain and uniaxial stress conditions. The phenomena associated with the dynamic expansion and subsequent break up of the cylinders are monitored with high-speed diagnostics. In addition, complementary experiments are performed in which fragments from the explosively driven cylinders are recovered and analyzed to determine the statistical distribution associated with the fragmentation process as well as to determine failure mechanisms. The data are used to determine relevant coefficients for the Hancock-McKenzie (Johnson-Cook) fracture model. Metallurgical analysis of the fragments provides information on damage and failure mechanisms.

Authors:
; ; ; ; ;
Publication Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
965458
Report Number(s):
UCRL-JRNL-230155
TRN: US200919%%583
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Journal Article
Resource Relation:
Journal Name: International Journal of Impact Engineering, vol. 35, N/A, December 1, 2008, pp. 1547-1556; Journal Volume: 35
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; 42 ENGINEERING; ALLOYS; DISTRIBUTION; FRACTURES; FRAGMENTATION; STEELS; STRAINS

Citation Formats

Goto, D M, Becker, R C, Orzechowski, T J, Springer, H K, Sunwoo, A J, and Syn, C K. Investigation of the fracture and fragmentation of explosively driven rings and cylinders. United States: N. p., 2007. Web.
Goto, D M, Becker, R C, Orzechowski, T J, Springer, H K, Sunwoo, A J, & Syn, C K. Investigation of the fracture and fragmentation of explosively driven rings and cylinders. United States.
Goto, D M, Becker, R C, Orzechowski, T J, Springer, H K, Sunwoo, A J, and Syn, C K. Wed . "Investigation of the fracture and fragmentation of explosively driven rings and cylinders". United States. doi:. https://www.osti.gov/servlets/purl/965458.
@article{osti_965458,
title = {Investigation of the fracture and fragmentation of explosively driven rings and cylinders},
author = {Goto, D M and Becker, R C and Orzechowski, T J and Springer, H K and Sunwoo, A J and Syn, C K},
abstractNote = {Cylinders and rings fabricated from AerMet{reg_sign} 100 alloy and AISI 1018 steel have been explosively driven to fragmentation in order to determine the fracture strains for these materials under plane strain and uniaxial stress conditions. The phenomena associated with the dynamic expansion and subsequent break up of the cylinders are monitored with high-speed diagnostics. In addition, complementary experiments are performed in which fragments from the explosively driven cylinders are recovered and analyzed to determine the statistical distribution associated with the fragmentation process as well as to determine failure mechanisms. The data are used to determine relevant coefficients for the Hancock-McKenzie (Johnson-Cook) fracture model. Metallurgical analysis of the fragments provides information on damage and failure mechanisms.},
doi = {},
journal = {International Journal of Impact Engineering, vol. 35, N/A, December 1, 2008, pp. 1547-1556},
number = ,
volume = 35,
place = {United States},
year = {Wed Apr 18 00:00:00 EDT 2007},
month = {Wed Apr 18 00:00:00 EDT 2007}
}