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Revisiting Kolsky bar data evaluation method

DSpace at IIT Bombay

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Field Value
 
Title Revisiting Kolsky bar data evaluation method
 
Creator NAIK, NK
PANDYA, KS
POTHNIS, JR
GELU, TA
 
Subject High strain rate
Impact
Mechanical property
Wave propagation
Split Hopkinson pressure bar
HOPKINSON PRESSURE BAR
STRAIN-RATE
STRESS EQUILIBRIUM
COMPRESSION
COMPOSITES
BEHAVIOR
UNIFORMITY
SPECIMENS
ALUMINUM
TESTS
 
Description Conventional Kolsky bar data evaluation method is based on the assumption of stress equilibrium within the specimen during testing. When the objective is to generate stress-strain diagrams up to failure, damage initiation and evolution within the specimen should be taken into account. In that case, stress wave attenuation would take place and the assumption of stress equilibrium would not be valid. In this study, the data evaluation method is revisited and analytical expressions considering possible damage are presented. The revisited method gives higher specimen strain rate and strain compared with the conventional method. Both methods give the same specimen stress. (C) 2014 Elsevier Ltd. All rights reserved.
 
Publisher ELSEVIER SCI LTD
 
Date 2014-12-28T17:39:28Z
2014-12-28T17:39:28Z
2014
 
Type Article
 
Identifier COMPOSITE STRUCTURES, 111446-452
0263-8223
1879-1085
http://dx.doi.org/10.1016/j.compstruct.2014.01.030
http://dspace.library.iitb.ac.in/jspui/handle/100/17011
 
Language English