Evaluation of Three-Point Bending Fracture Tests of Selected Concrete: Mechanical Fracture and Acoustic Emission Parameters

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F16%3APU120493" target="_blank" >RIV/00216305:26110/16:PU120493 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Evaluation of Three-Point Bending Fracture Tests of Selected Concrete: Mechanical Fracture and Acoustic Emission Parameters
Original language description
Authors focus attention on mechanical fracture and acoustic emission (AE) parameters obtained from records of three-point bending fracture tests on concrete specimens with initial notch. Total nine sets of specimens were tested. Three specimens at the age of 28 days were tested in each set. Concrete of each set of specimens was different in dosage of Portland cement CEM I 42.5 R and amount of used superplasticizer which resulted in different water to cement ratio of particular mixtures. The Effective Crack Model (ECM) was used to evaluate the load vs deflection diagrams to obtain modulus of elasticity, effective fracture toughness and specific fracture energy. Modulus of elasticity, tensile strength and specific fracture energy were also subject of identification via inverse analysis based on artificial neural network, which aim is to transfer the input data obtained from the fracture test to the desired material parameters. Resistance to stable and unstable crack propagation was quantified via evalu
Czech name
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Czech description
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Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2016
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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