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Title	FRACTURE PROCESS ZONE IN DYNAMICALLY LOADED CRACK-LINE WEDGE-LOADED, DOUBLE-CANTILEVER BEAM CONCRETE SPECIMENS
Accession No	00616245
Authors	Yon, J-H; Hawkins, N M; Kobayashi, A S
Journal Title	ACI Materials Journal Vol. 88 No. 5
Corp. Authors / Publisher	American Concrete Institute ; American Concrete Institute
Publication Date	19911000
Description	p. 470-479; Figures; References(11); Tables
Abstract	This reports results of tests on crack-line wedge-loaded, double cantiliver beam concrete specimens loaded to failure at increasing strain rates using a displacement controlled MTS dynamic-loading system. Linear elastic fracture mechanics (LEFM), together with a trailing fracture-process zone (FPZ) was used to evaluate the dynamic fracture response of those specimens. While the constitutive relations governing the FPZ was found to be strain-rate independent, the dynamic stress intensity factor was found to be strain-rate dependent. The energy release rate closely approximated the energy-dissipation rate in the FPZ, demonstrating that the FPZ is the dominant energy-dissipation mechanism in concrete.
TRT Terms	Beams ; Cantilevers ; Cracking ; Fracture mechanics ; Strain (Mechanics)
Other Terms	Cracks; Strain rate
Subject Areas	H32 CEMENT AND CONCRETE; I32 Concrete
Availability	American Concrete Institute Order Document: http://www.aci-int.org/PUBS/JOURNALS/AbstractDetails.asp?srchtype=phrase&date=anytime&searchmonth=10&searchday=0&searchyear=1991&publication=Materials+Journal&volume=88&issue=5&title=PERMEABILITY+OF+HIGH%2DSTRENGTH+LIGHTWEIGHT+CONCRETE&ID=2108 Find a library where document is available Order Document: http://worldcat.org/oclc/13846872
TRIS Files	HRIS
Database	TRIS Online

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