Results 11 to 20 of about 55,438 (275)

Calibration of cohesive parameters for a castable refractory using 4D tomographic data and realistic crack path from in-situ wedge splitting test

open access: yesJournal of the European Ceramic Society, 2022
Crack propagation in an alumina castable refractory with mullite-zirconia aggregates was investigated in-situ using a wedge splitting test setup performed inside a laboratory tomograph.
R. Vargas   +3 more
semanticscholar   +1 more source

Numerical study and pilot evaluation of experimental data measured on specimen loaded by bending and wedge splitting forces [PDF]

open access: yesFracture and Structural Integrity, 2017
The fracture mechanical properties of silicate based materials are determined from various fracture mechanicals tests, e.g. three- or four- point bending test, wedge splitting test, modified compact tension test etc.
S. Seitl, R. Diego Liedo
doaj   +1 more source

Fatigue crack behaviour: comparing three-point bend test and wedge splitting test data on vibrated concrete using Paris' law [PDF]

open access: yesFracture and Structural Integrity, 2017
The fatigue behaviour of concrete has become more important for the design of constructions due to the desire to build slimmer structures, which are more sensitive to fatigue loading.
S. Seitl, T. Thienpont, W. De Corte
doaj   +1 more source

Multi-parameter crack tip stress state description for estimation of fracture process zone extent in silicate composite WST specimens [PDF]

open access: yesFracture and Structural Integrity, 2013
For wedge splitting test specimens, the stress and displacement fields both in the vicinity and also in larger distance from the crack tip are investigated by means of numerical methods. Several variants of boundary conditions were modeled.
Václav Veselý   +4 more
doaj   +2 more sources

Fracture Behaviour of Concrete with Reactive Magnesium Oxide as Alternative Binder

open access: yesApplied Sciences, 2021
This research evaluates the fracture behavior of concrete with reactive magnesium oxide (MgO). Replacing cement with MgO is an attractive option for the concrete industry, mainly due to sustainability benefits and reduction of shrinkage.
J. A. Forero   +4 more
doaj   +1 more source

Determining fracture energy parameters of concrete from the modified compact tension test [PDF]

open access: yesFracture and Structural Integrity, 2014
The modified compact tension (MCT) test, though not yet recognized as a valid test for determining fracture energy of concrete, is believed to represent a plausible and suitable alternative versus other well established procedures, such as the wedge ...
A. Fernández-Canteli   +5 more
doaj   +2 more sources

Investigation of the influence of impurities typical in secondary raw materials on the behavior of high alumina castables – Part 1: Design of the castables, setting properties and high temperature fracture behavior

open access: yesOpen Ceramics, 2023
The research was carried out using a primary high alumina raw material that was selectively spiked with typical elements found in secondary raw materials. These artificially spiked raw materials were processed into cement-free high alumina monolithics by
Laura Erbar   +7 more
doaj   +1 more source

Asymmetric creep modeling of common refractory ceramics with high temperature wedge splitting test

open access: yesEngineering Fracture Mechanics, 2021
Common refractory ceramics display significant asymmetric creep behavior at high temperatures under uniaxial loading conditions. This study introduces an advanced asymmetric creep model based on the stress path in the hydrostatic pressure–von Mises ...
Shengli Jin, H. Harmuth
semanticscholar   +1 more source

Non-uniqueness of fracture parameter choice in simulations of concrete cracking at mesoscale level

open access: yesArchives of Mechanics, 2023
In the paper a non-uniqueness of fracture parameter choice in simulations of cracking process in plain concrete specimens at mesoscale level under monotonic static loading is analysed.
B. Kondys, J. Bobiński, I. Marzec
doaj   +1 more source

A projection-based approach to extend digital volume correlation for 4D spacetime measurements

open access: yesComptes Rendus. Mécanique, 2023
In-situ (tomography) experiments are generally based on scans reconstructed from a large number of projections acquired under constant deformation of samples. Standard digital volume correlation (DVC) methods are based on a limited number of scans due to
Kosin, Viktor   +5 more
doaj   +1 more source

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