Exploració per tema "Damage"
Ara es mostren els items 3-22 de 50
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A thermodynamically consistent plastic-damage framework for localized failure in quasi-brittle solids: material model and strain localization analysis
(2016-06)
Article
Accés obertAiming for the modeling of localized failure in quasi-brittle solids, this paper addresses a thermodynamically consistent plastic-damage framework and the corresponding strain localization analysis. A unified elastoplastic ... -
A unified non-linear energy dissipation-based plastic-damage model for cyclic loading
(2022-10)
Article
Accés obertA new energy-dissipation-based rate-independent constitutive law within the framework of elastoplasticity coupled with damage is proposed. With this methodology, the inelastic strains and the stiffness degradation exhibited ... -
Adaptive phase-field modeling of fracture in orthotropic composites
(2023-11-15)
Article
Accés restringit per política de l'editorialAn adaptive phase-field method is developed and applied to model fracture propagation in orthotropic composites. The proposed approach extends the work of Muixí et al. (2020) to orthotropic composites through following ... -
An elastic plastic damage formulation for concrete: application to elementary and structural tests
(2006-11)
Article
Accés obertPure elastic damage models or pure elastic plastic constitutive laws are not totally satisfactory to describe the behaviour of concrete. They indeed fail to reproduce the unloading slopes during cyclic loading which define ... -
Analysis of the effect of provisional ties on the construction and current deformation of Mallorca cathedral
(2016-04)
Article
Accés restringit per política de l'editorialThis paper presents the analysis of the structure of Mallorca Cathedral taking into account the influence on structural behaviour of auxiliary iron ties used during the construction process. Recent studies (Roca et al., ... -
Anisotropic microsphere-based approach to damage in soft fibered tissue
(2012-05)
Article
Accés obertAn anisotropic damage model for soft fibered tissue is presented in this paper, using a multi-scale scheme and focusing on the directionally dependent behavior of these materials. For this purpose, a micro-structural or, ... -
Appraisement of planar, bending and twisting cracks in 3D with isotropic and orthotropic damage models
(Springer, 2018-03)
Article
Accés obertThis paper discusses the modeling of cracking in quasi-brittle materials using isotropic and orthotropic damage constitutive laws. A mixed strain/displacement finite element formulation is used, taking advantage of its ... -
Architecture of a multi-crack model with full closing, reopening and sliding capabilities
(Springer, 2020-06)
Article
Accés obertThis paper discusses the finite element modeling of cracking of quasi-brittle materials under cyclic loading. A damage based crack model is proposed, which considers tensile and compressive damage, irreversible strains ... -
Benchmarks for the validation of a non local model
(2004-10)
Article
Accés restringit per política de l'editorialThe aim of this contribution is to present a series of organised benchmarks that helps at validating the robustness of the FE implementation of a constitutive relation, its pertinence with respect to experiments, and ... -
Correlation between seismic intensity measures and engineering demand parameters of reinforced concrete frame buildings through nonlinear time history analysis
(Elsevier, 2023-11)
Article
Accés obertIn this paper, the correlation between different seismic intensity measures (IM) and engineering demand parameters (EDP) of reinforced concrete (RC) buildings was evaluated by means of nonlinear dynamic analyses (NLDA). ... -
Cracking of quasi-brittle structures under monotonic and cyclic loadings: a d+/d- damage model with stiffness recovery in shear
(2018-03)
Article
Accés obertIn the present paper, a new d+/d- damage model apt for quasi-brittle materials is described and its validation is carried out considering unreinforced concrete, reinforced concrete and masonry elements.Two independent ... -
Cyclic constitutive model for concrete
(Elsevier, 2008)
Article
Accés obertA constitutive model for concrete subjected to cyclic loadings in both compression and tension is presented. The proposed model is intended to provide improvements on modelling the cyclic behaviour of concrete structures ... -
Cyclic contact fatigue of cemented carbides under dry and wet conditions: Correlation between microstructure, damage and electrochemical behavior
(2020-11-01)
Article
Accés obertThe correlation between the damage induced under cyclic contact fatigue and their electrochemical behavior (anodic polarization curves) for different WC-Co-based cemented carbides grades was investigated at the macrometric ... -
Cylindrical samples of brick masonry with aerial lime mortar under compression: experimental and numerical study
(Elsevier, 2019-12)
Article
Accés obertThis research presents an experimental and numerical study focusing on the compression test of cylindrical samples core drilled from existing masonry walls. This method is suitable for the minor destructive assessment of ... -
Damage diagnosis in concrete dams with presented expansive damage based on medical propaedeutics
(2017-10)
Article
Accés obertThe maintenance of dams is crucial because of their social, environmental, and economic relevance. However, more than 40% of the world’s dams are more than 40 years old. Furthermore, because of their ageing, damage such ... -
Damage Index for structures with elements of high flexural stiffness and/or brittle behavior
(2018)
Text en actes de congrés
Accés restringit per política de l'editorialStructures with high lateral stiffness and/or with brittle to semi-brittle elements in their lateral resistant system may exhibit a rapid decrease of their shear capacity and a sudden loss of stiffness when lateral cyclic ... -
Damage plastic model for concrete failure under impulsive loadings
(CIMNE, 2015)
Comunicació de congrés
Accés obertThe IRIS 2012 benchmark [1] was devoted to compare various modelling of impact on reinforced concrete slabs. Its aim was to improve the methods used and to provide guidance to assess the integrity of structures impacted ... -
Deep neural networks for the estimation of masonry structures failures under rockfalls
(2023-05-24)
Article
Accés obertAlthough the principal aim of the rockfall management is to prevent rock boulders from reaching the buildings instead of the buildings resisting the boulder impacts, there usually exists a residual risk that has to be ... -
Determination of the state of health of Li-ion batteries : the irreversible entropy production approach
(Universitat Politècnica de Catalunya, 2017-11-24)
Tesi
Accés obertIn recent years, portable applications have experienced an exponential growth and consequently, the demand of batteries has increased accordingly. It is widely known, though, that the performance of batteries decreases ... -
Efficient constitutive model for continuous micro-modeling of masonry structures
(2023-01)
Article
Accés obertMasonry is a composite material often modeled as an equivalent homogenous material. However, the complexity of its micro-structure leads to complex mechanical responses, which are almost impossible to capture accurately ...