Publications
Fracture mode analysis of cementitious mortars by simultaneous application of 4D-XCT and acoustic emission technique KU Leuven
Cementitious brittle construction materials are susceptible to fracturing due to their heterogeneous material composition and relatively weak bond between the aggregates and paste. Hence, enhanced methods of fracture analysis in these materials are an important subject of research. The acoustic emission technique (AET) is frequently used in the study of brittle construction materials, yet the random nature of cracking and the het erogeneity of ...
Fatigue fracture quantification in brittle cementitious materials using acoustic emission testing and digital image correlation KU Leuven
Fatigue loading in brittle materials introduces damage at the micro-scale. These micro-fractures can accumulate and cause a significant reduction in material stiffness or even lead to structural failure. Deformation-based monitoring techniques can be inadequate when detecting damage at the micro-level. Hence, here is where advanced non-destructive testing (NDT) methods such as acoustic emission testing (AET) and digital image correlation (DIC) ...
Micromechanics-based variational phase-field modeling of Brazilian splitting tests KU Leuven
The simulation of the Brazilian splitting test can be challenging due to the presence of stress concentrations near the load points, which can lead to numerical problems and convergence issues. This paper aims to realistically model the Brazilian splitting test on mortar samples under monotonic loading, employing a micromechanics-based variational phase-field formulation. A micromechanics-based phase-field model connects the field variables at ...
Experimental Datasets and Model Uncertainty of Empirical Relations for Rebar Corrosion Assessment KU Leuven
Reinforcement corrosion in concrete structures entails numerous interacting parameters and processes. A general approach is to use corrosion-rate models to predict the corrosion level of existing structures, and subsequently update these predictions by means of on-site data. In this process, empirical models are often applied that relate the observed damage, such as corrosion-induced cracks, to the corrosion level. In this paper, an experimental ...