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Showing 1 to 14 of 14 for “"smeared crack"”.
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A Critical Evaluation of Computational Fracture Using a Smeared Crack Approach in MPM
An evaluation of the smeared crack representation of material failure using the material-point method (MPM) as a feasible computational failure approach is performed. The spatial descretization in MPM is defined by a grid of cells that represent space and a set of points that represent the …
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Modelling of transport processes involved in service life prediction of concrete: important principles
… the stress-deformation state using the so-called smeared crack approach.
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A Mesh Objective Algorithm for Modeling Mode-I Cracks Using a Standard Finite Element Formulation
… mesh objective algorithm for modeling mode-I cracks is developed and implemented within a standard finite element formulation. The algorithm applies the crack opening displacements across the standard nodal degrees of freedom that is consistent with formalism of the conventional smeared crack …
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Numerical modelling of reinforced concrete bridge pier under artificially generated earthquake time-histories
… well with the EC8 one. Two Finite element (FE) smeared crack models, named Multi-crack and Craft, are well validated against experimental data of concrete and Reinforced concrete (RC) structures under monotonic and cyclic loadings. They are then used in the analysis of RC bridge piers under the …
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Evaluation of Elastic-Plastic and Damage Models for Ultra High Performance Concrete (UHPC)
… and UHPC. The models evaluated were the Concrete Smeared Crack (CSC) model and Concrete Damage Plasticity (CDP) model in ABAQUS, and the Continuous Surface Cap Model (CSCM) in LS-DYNA. ABAQUS and LS-DYNA are two widely used finite element analysis (FEA) codes. The constitutive models were …
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Punching shear capacity of flat slab-column junctions (a study by 3-D non-linear finite element analysis)
… to describe the behaviour of concrete before cracking or crushing. After cracking, a yield criteria for 2-D model similar to Kupfer-Hilsdorf was used and concrete was assumed to be anisotropic. No softening in compression is assumed. Smeared crack approach with simple tension stiffening and …
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Creep and damage models for the service behaviour of structural members
… instantaneous service loadings. Concrete in his cracked state has been considered through a smeared crack model for beams under bending. At a second stage, the FE-model has been extended to the viscoelastic field and applied to pultruded composite beams under sustained loadings. The generalized …
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Delamination in reinforced concrete retrofitted with fiber reinforced plastics
… causes, specifically in the presence of existing cracks in the retrofitted concrete system. First, delamination processes in FRP retrofitted concrete systems are studied through combined experimental and analytical procedures. The delamination process is observed to initiate in the concrete …
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Three-dimensional non-linear finite element analysis of reinforced concrete beams in torsion. Reinforced concrete members under torsion and bending are analysed up to failure. A non-linear concrete model for general states of stress including compressive strength degradation due to cracking is described.
… at the onset the . crushing. In tension, a smeared crack model with fixed orthogonal cracks has been used with the inclusion of models for the retained post-cracking stress and the reduced shear modulus. The non-linear equations of equilibrium have been solved using an incremental-iterative …
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The mathematical modelling of concrete constitutive relationships
… materials in addition to factors such as cracking, crushing, aggregate interlock, creep, shrinkage, bond slip and rate of loading. Analytical methods have been improved in the past two decades as a result of the availibility of more powerful computers. It is, therefore, feasible to model …
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Modellazione numerica della nascita e dello sviluppo di interfacce mediante il metodo delle discontinuità forti
… approccio al continuo con fratture distribuite (smeared crack approach). Quest'ultimo, sebbene vantaggioso dal punto di vista dell'implementazione numerica, presenta problematiche legate alla non oggettività della risposta al variare della discretizzazione adottata (mesh-dependency) a causa del …
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Development of Novel Computational Simulation Tools to Capture the Hysteretic Response and Failure of Reinforced Concrete Structures under Seismic Loads
… response, is combined with a rotating smeared-crack model to capture the damage associated with tensile cracking. The proposed model resolves issues which characterize existing concrete material laws. Specifically, the newly proposed formulation accurately describes the crack …
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Structural behavior and modeling of high-performance fiber-reinforced cementitious composites for earthquake-resistant design
… HPFRCC finite element material model, with a smeared crack representation, that was calibrated to the experimental data. In addition to small-scale structural / material testing and modeling, the same HPFRCC hooked steel fiber mix was tested in large-scale coupling beam component tests by …
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Nonlinear finite element analysis of reinforced concrete structures subjected to blast loading
… a linear elastic strain softening material where crack initiation is controlled by a rate dependent strain criterion. The smeared crack approach is employed to simulate cracks, post-cracking behaviour is governed by an objective nonlinear softening rule based on concrete fracture energy and crack …