Exploració per tema "Damage"
Ara es mostren els items 12-31 de 50
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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 ... -
Entropy characterisation of overstressed capacitors for lifetime prediction
(2016-12-30)
Article
Accés obertWe propose a method to monitor the ageing and damage of capacitors based on their irreversible entropy generation rate. We overstressed several electrolytic capacitors in the range of 33 µF–100 µF and monitored their entropy ... -
Evaluation of seismic damage in low-rise buildings of reinforced concrete masonry
(2016)
Text en actes de congrés
Accés restringit per política de l'editorialThe assessment of damage caused by earthquakes in structures, requires the use of nonlinear analysis, either static or dynamic, in order to define the performance of the buildings for the considered hazard levels. In this ... -
Failure pressure analysis of a nuclear reactor prestressed concrete containment building
(Elsevier, 2021-06)
Article
Accés obertThe failure analysis of an existing and operational nuclear power plant reactor containment building subjected to an accident internal pressure is studied in this paper. The computation is based on the Finite Element Method ... -
Finite element analysis of compressive failure in stiffened carbon fiber panels
(Universitat Politècnica de Catalunya, 2011-09-29)
Projecte Final de Màster Oficial
Accés restringit per decisió de l'autorThe use of composite materials in the aerospace industry is experiencing a large increase in recent years. Mainly they are used to build commercial aircraft fuselages. COCOMAT project had aimed to study and to improve ... -
Finite element modeling of quasi-brittle cracks in 2D and 3D with enhanced strain accuracy
(2017-11)
Article
Accés obertThis paper discusses the finite element modeling of cracking in quasi-brittle materials. The problem is addressed via a mixed strain/displacement finite element formulation and an isotropic damage constitutive model. The ... -
From continuum mechanics to fracture mechanics: the strong discontinuity approach
(2002-01)
Article
Accés obertThe paper deals with the strong discontinuity approach and shows the links with the decohesive fracture mechanics provided by that approach. On the basis of 1D continuum damage models it is shown that, by introducing some ... -
Global costs of protecting against sea-level rise at 1.5°C to 4.0°C
(2021-07)
Article
Accés obertSea-levels will rise, even with stringent climate change mitigation. Mitigation will slow the rate of rise. There is limited knowledge on how the costs of coastal protection vary with alternative global warming levels of ... -
Image processing, Time of Flight cameras and Sheet of light combination and "Road damage evaluation"
(Universitat Politècnica de Catalunya, 2016-04-08)
Treball Final de Grau
Accés restringit per decisió de l'autorSince the first day in Antwerp, I wanted to work in automotive world, my promoter, Dr. Luc Mertens motivated me about the world of the cameras and their applications. It was a new topic for me, but I think that the vision ... -
Indentation and scratch testing of a WC-6%wtCo cemented carbide: Corrosion effects on load-bearing capability and induced damage
(2020-04-10)
Article
Accés obertIn this work, corrosion effects on the indentation and scratch response of a WC-6%Co hardmetal are investigated. Experimental variables include relative long corrosion times as well as indentation and scratch testing ...