HPC simulations of alkali-silica reaction-induced damage: Influence of alkali-silica gel properties

Quantitative analysis of the evolution of ASR products and crack networks in the context of the concrete mesostructure

“…Another very active research area concerns computational modelling of ASR damage [10]. The latter is an essential methodology for achieving in the future the prediction of the structural degradation under various boundary conditions [10][11][12][13][14]. However, due to the still limited understanding of the basic ASR cracking mechanisms, current numerical simulations have limited predictive power, since they are typically based on simplified chemo-mechanical models and on assumptions with limited validation.…”

“…The aggregate segmentation serves also the additional purpose of enabling the generation of more realistic computational spatial domains for the computational modelling. A typical example are finite element method meshes directly derived from the surfaces of the segmented aggregates, instead of representing them, e.g., as idealized spherical particles [13,41].…”

Akantu: an HPC finite-element library for contact and dynamic fracture simulations

“…For example, the buildup and release of elastic energy at geological fault is what causes earthquakes, and the intricate details of the slip zone, the propagation of slip fronts and waves radiated through the various geological media are still active areas of research (Kammer et al, 2012(Kammer et al, , 2014Roch et al, 2022). Similarly, understanding fracture in heterogeneous materials such as concrete, masonry or ceramics necessitates the modeling of interaction of crack fronts with complex materials (A. I. Cuba Ramos et al, 2018;Taheri Mousavi et al, 2015;Yilmaz et al, 2017), the representation of residual shear stresses in the contact of newly-formed crack surfaces (Pundir & Anciaux, 2021;Zhang et al, 2017), and the accurate characterization of transient dynamics (Corrado & Molinari, 2016;Vocialta et al, 2018) and material structure evolution (A. I. Cuba Ramos et al, 2018;Gallyamov et al, 2020).…”