Computational Modelling of Concrete and Concrete Structures

Günther Meschke, Ruhr University Bochum, GermanyBernhard Pichler, Technische Universität Wien, AustriaJan G. Rots, Delft University of Technology, Netherlands

• Plenary LecturesSimulation of RC beams shear strengthened with Fe-SMA and NSM-CFRP laminateRisk from using marginal design code equations and unphysical strength probability distributions in structural safety software – a wake-up callTime-dependent load-bearing capacity of corroded post-tensioned bridge beams with dapped-endsEstablishing trust in nonlinear failure analysis of concrete structures through facilitating nuanced quantification of uncertaintiesPersonal reflections on 40 years of research in computational modeling of the load-bearing behavior of concrete structuresMesoscale discrete modeling of monotonic, cyclic and fatigue loading of concreteAnalysis of concrete materialsModeling the contact problem for creep analysis in C-S-H nanoindentationMultiscale modeling of the mechanical properties of mortars containing mineral additions and recycled sandDCNN based on X-ray CT images for detection of cracking damage of in-service concrete structureDo we need environmental boundary conditions for the time-dependent material behaviour of concrete?Sensitivity and uncertainty analysis of surrogate-assisted micromechanical models for recycled aggregate concrete with ITZ considerationsThermo-hydro-mechanical study of creep in concrete at 150°C and 90% RH: experimental characterization and modeling calibration2D framework for mesoscopic concrete simulations enriched with 3D topology informationMicrostructural characterization and numerical evaluation of interfacial transition zones in cement-based composites with biomineralized-coated aggregatesModelling of the wall effect with the two-phase Lattice Discrete Particle ModelAnalysis of concrete structuresReducing input uncertainties in damage-based finite element models of nuclear containment structures through Bayesian inferenceNumerical simulation of experimentally determined shear capacity of a prestressed beam without transverse reinforcementA generalized and parametrized finite-element model for flat slab punchingAnalytical prediction model for the mechanical response of concrete cover spalling supported by numerical simulationsSeismic capacity assessment of existing corroded RC viaduct piers in marine environmentComputational confinement analysis of hollow circular concrete columns using a finite layer constitutive frameworkFE modelling of concrete biological shield exposed to neutron radiationModeling PPFRC beams: assessment of constitutive and bond modelsComposite behavior of concrete columns with one-directional section enlargementsA new model for anchorage length design in concrete elements considering support effects and ductilityLattice discrete modeling of fatigue propagation in concrete validated using prestressed beam testsStructural vulnerability and catenary effects in concrete frames under high-energy eventsReliability assessment of concrete walls as systems for low impacted energies in steep mountainous areasFEM analysis of punching shear in reinforced concrete slabs: role of concrete-steel interfacePredictive modeling of concrete carbonation in urban tunnels using experimental dataNumerical study on matrix deterioration at the anodic region of impressed current cathodic protection systemA platform for validation and verification of models for concrete and concrete structuresComputational evaluation of strains measured in tubbings of a segmental tunnel liningStudy of the impact of coatings on the ageing assessment of double wall concrete containment building without metallic linerAnalysis with FEM and shear-lag theory for predicting stress distribution along interface of post-installed short-length epoxy anchorNumerical study on effects of stud bolt and tiebar on impact resistance of SC panels under impact loadsPrediction of post-fire performance of scaled cylindrical RC walls of RPV pedestal of nuclear power plantKey parameters for simulating Delayed Ettringite Formation in concrete structuresBenchmark on the modelling of RC structures affected by delayed ettringite formationDesign-oriented finite element method for solid reinforced concrete structures using convex optimisationFracture-based modelling and ductility quantification for structural health monitoring of reinforced concreteHybrid computational framework for nonlinear soil-structure interaction under seismic excitation using subdomain decompositionShear and transverse bending in the webs of thin-walled bridge girdersConstitutive models and computational frameworksModel uncertainty of numerical crack width in reinforced concreteJ-integral in random elastic mediumDEM-based numerical analysis of fiber-reinforced concreteOn mapping algorithms for material random fields in stochastic FE analysis of quasibrittle structuresExplicit consideration of the fiber orientation state in the design of fiber reinforced concrete structures with nonlinear FE-analysisNonlinear force-based 3D beam model with bond-slip and time-staged prestressing for RC and PC structuresNumerical simulation of rust growth and corrosion-induced cracking in reinforced concrete samplesFiber’s key characteristics in aligned pullout: insights from computationsComprehensive validation of a 2.5D layered model for crack growth in concreteModelling crack propagation in concrete structures using a cohesive fracture phase-field frameworkCT-image-based simulation of cracking of fiber-reinforced concrete beamsNon-proportional sequentially-linear analysis for masonry structures: capturing combined foundation settlement and push-over loadsOn vertex instability of pressure-sensitive non-associated plasticity with hyperbolic plastic potential functionsRevisiting equivalent strain concepts with reference to localizing gradient damageA comparative study of state-of-the-art constitutive models for concrete failure under shear-dominated stress statesA phase-field damage-plasticity approach for analyzing bonded anchors with supplementing reinforcementsGradient-enhanced damage-plasticity approaches for modeling failure of concrete: phase-field fracture vs. localizing gradient damageAn iterative-incremental energy-based micromechanical model for quasi-brittle materials with crack closure and frictionA scalable hybridized mixed finite element formulation for 3D crack propagation under large strain and contactA finite volume-based cyclic constitutive model for reinforced concreteSize-effect law in gap test recreated with damaged-plasticity modelThree-dimensional analysis of box girders considering nonlinear creep, shrinkage, and cracking effectsLessons learned from simulations of the gap testA position-based framework for modeling reinforced concrete beams and externally FRP-strengthened RC beamsNumerical modeling of concrete under large deformationsNumerical study on prestressed concrete beams made continuous: blind predictions, post-dictions, and sensitivity studiesA frictional cohesive zone model for simulating quasi-brittle fracture: time-dependent vs time-independent regularizations of the frictional termData-driven, AI and machine learning methodsPredicting fatigue lifetime of high-strength concrete with physics-based machine learningScene classification-assisted deep learning for crack detection of asphalt pavements in RC bridgeComputational thermal analysis for health monitoring of concrete dam structures using shadow modeling and deep learningAdvancing impact simulation through physics-informed neural networks: application to multi-layer compositesData-driven damage mechanics: an outlook to failureRefining crack width predictions in RC beams using FEM and neural network-based surrogate models for crack band size correctionStrut and tie ML AI models for reinforced concrete analysisMulti-scale and multi-physics approachesA novel meso-scale numerical implementation of the carbonation kinetics of cementitious materialsCoarse-grained chemo-mechanical simulations: a cornerstone for long-term predictions of concrete degradationMulti-scale numerical investigation of freeze–thaw effects on fatigue behavior of RC slabs and development of strain energy-based damage factorMultiscale thermo-elastic homogenization of hydrating binders for nuclear waste storage applicationInfluence of wall effect on drying shrinkage of self-compacting concreteMultiscale modelling of carbonation in concrete made with RCABoundary condition strategies for strain localization in discrete periodic unit cellEffects of fluid and aggregate fragmentation on dynamic concrete behavior using a novel DEM-based hydro-mechanical modelMultiscale strength modeling of low-carbon cement pastes: the roles of the stiffness of binder constituents and surrogate modelingEffect of mesostructure heterogeneity on the moisture and heat diffusion in concrete through a multi-phase discrete modelling approachA novel DEM-based coupled 3D thermo-hydro-mechanical mesoscopic model with phase changes for modelling concrete behaviorBuilding a bio-chemo-mechanical simulation tool for microbial induced carbonate precipitation (MICP) in concrete: Coarse graining nano to microSimulation methods for 3D concrete printingTowards lattice modelling of additively manufactured cement-based composites with tailored Poisson's ratio-reinforcementAssessing structural failure in extrusion-based 3D concrete printing using a plasticity model with non-linear hardeningMultiphysics simulation of time-dependent early-age behaviour in 3D printed concreteOptimization of mixing time for printcrete using a non-contact monitoring systemMicrostructural characterization and bonding performance evaluation of 3D-printed concrete-mortar compositesNumerical modelling of interlayer adhesion in 3D-printed concrete with LDPM