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Fracture Process Zone of a Concrete Fracture Specimen

Du, J. J. / Kobayashi, A. S. / Hawkins, N. M.

Abstract For concrete three-point bend specimens Moire interferometry was used to locate the micro-crack tip and to measure the crack opening displacement (COD) along the fracture process zone preceeding that tip. The COD data was used as input to a finite element model which was then executed in its generation mode, to yield crack closure forces along the fracture process zone. The crack closure forces versus COD relationship for the fracture process zone was consistent with that postulated previously based on the use of hybrid experimental-numerical techniques utilizing finite element methods in both their generation and propagation modes.

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Fracture Process Zone of a Concrete Fracture Specimen

Du, J. J. / Kobayashi, A. S. / Hawkins, N. M.

Abstract For concrete three-point bend specimens Moire interferometry was used to locate the micro-crack tip and to measure the crack opening displacement (COD) along the fracture process zone preceeding that tip. The COD data was used as input to a finite element model which was then executed in its generation mode, to yield crack closure forces along the fracture process zone. The crack closure forces versus COD relationship for the fracture process zone was consistent with that postulated previously based on the use of hybrid experimental-numerical techniques utilizing finite element methods in both their generation and propagation modes.

Fracture Process Zone of a Concrete Fracture Specimen

Du, J. J. / Kobayashi, A. S. / Hawkins, N. M.

Abstract For concrete three-point bend specimens Moire interferometry was used to locate the micro-crack tip and to measure the crack opening displacement (COD) along the fracture process zone preceeding that tip. The COD data was used as input to a finite element model which was then executed in its generation mode, to yield crack closure forces along the fracture process zone. The crack closure forces versus COD relationship for the fracture process zone was consistent with that postulated previously based on the use of hybrid experimental-numerical techniques utilizing finite element methods in both their generation and propagation modes.

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Title:

Fracture Process Zone of a Concrete Fracture Specimen

Contributors:

Du, J. J. (author) / Kobayashi, A. S. (author) / Hawkins, N. M. (author)

Published in:

Fracture of Concrete and Rock ; 199-204

Publication date:

1989-01-01

Size:

6 pages

ISBN:

978-0-387-96880-3 , 978-1-4612-3578-1

DOI:

https://doi.org/10.1007/978-1-4612-3578-1_20

Type of media:

Article/Chapter (Book)

Type of material:

Electronic Resource

Language:

English

Keywords:

Crack Opening Displacement , Fracture Process Zone , Crack Mouth Opening Displacement , Moire Fringe Engineering , Geoengineering, Foundations, Hydraulics

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