The influence of polygonal cavity on fracture behaviour of concrete

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F19%3A00509508" target="_blank" >RIV/68081723:_____/19:00509508 - isvavai.cz</a>
Alternative codes found
RIV/00216305:26110/19:PU133030
Result on the web
<a href="http://dx.doi.org/10.1016/j.prostr.2019.08.092" target="_blank" >http://dx.doi.org/10.1016/j.prostr.2019.08.092</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.prostr.2019.08.092" target="_blank" >10.1016/j.prostr.2019.08.092</a>

Result language
angličtina
Original language name
The influence of polygonal cavity on fracture behaviour of concrete
Original language description
In this work, the influence of polygonal cavity on fracture behaviour of cement composite (concrete) is investigated. Specimens of the nominal dimensions 40 × 40 × 160 mm with polygonal cavity of 8 × 8 × 40 mm were provided with an initial central edge notch with a depth 12 mm, which was made by diamond blade saw. To determine the influence of polygonal cavity on fracture behaviour, fracture tests were conducted via three-point bending. The aim of this work is to analyse the behaviour of such specimen by means of finite element method (FEM) principles in Ansys, Inc. software. For this reason, a simplified 2D modelwas created for plane strain conditions and based on the fracture test configuration. The crack propagation assessment was based on generalized fracture mechanics approaches using a criterion of an average value of tangential stress determined in dependence on the polar angle θ. Results of numerical analysis indicates that the actual crack depth must be greater than it supposed. In other words, diamond blade saw damage the specimen more than expected
Czech name
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Czech description
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Project
—
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
ICSI 2019 The 3rd International Conference on Structural Integrity
ISBN
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ISSN
2452-3216
e-ISSN
—
Number of pages
8
Pages from-to
690-697
Publisher name
Elsevier
Place of publication
Amsterdam
Event location
Madeira
Event date
Sep 2, 2019
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
000505162900091

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