Analytical random field-based model for fracture in concrete
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F19%3APU134422" target="_blank" >RIV/00216305:26110/19:PU134422 - isvavai.cz</a>
Result on the web
<a href="https://framcos.org/FraMCoS-10.php#gsc.tab=0" target="_blank" >https://framcos.org/FraMCoS-10.php#gsc.tab=0</a>
DOI - Digital Object Identifier
—
Alternative languages
Result language
angličtina
Original language name
Analytical random field-based model for fracture in concrete
Original language description
The paper delivers an analytical model for prediction of peak force in concrete specimens loaded in bending (both notched and unnotched). The model is capable of predicting the statistics of the peak force of beams by computing the extreme values of sliding averages of random strength field. Local strength of the specimen is modelled by a stationary isotropic random field with Gaussian distribution and squared-exponential autocorrelation function. The averaging operation represents the progressive loss in material integrity and the associated stress redistribution that takes place prior to reaching the peak load. Once the (linear) averaging process is performed analytically, the resulting random field of averaged strength is assumed to represent a series of representative volume elements (RVEs) and the global strength is found by solving for the minimum of such an effective strength field. All these operations can be written analytically and there are only four free parameters: the three dimensions of
Czech name
—
Czech description
—
Classification
Type
O - Miscellaneous
CEP classification
—
OECD FORD branch
20102 - Construction engineering, Municipal and structural engineering
Result continuities
Project
<a href="/en/project/GA19-12197S" target="_blank" >GA19-12197S: Coupled Discrete Meso-scale Model for Mechanics and Transport Phenomena in Concrete</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů