Ara es mostren els items 29-48 de 50

    • Global costs of protecting against sea-level rise at 1.5°C to 4.0°C 

      Brown, Sally; Jenkins, Katie; Goodwin, Philip; Lincke, Daniel; Vafeidis, Athanasios T.; Tol, Richard S. J.; Jenkins, Rhosanna; Warren, Rachel; Nicholls, Robert J.; Jevrejeva, Svetlana; Sánchez-Arcilla Conejo, Agustín; Haigh, Ivan D. (2021-07)
      Article
      Accés obert
      Sea-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" 

      Perarnau Margarit, Eduard (Universitat Politècnica de Catalunya, 2016-04-08)
      Treball Final de Grau
      Accés restringit per decisió de l'autor
      Since 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 

      Zheng, Yafeng; Fargas Ribas, Gemma; Lavigne, Olivier; Llanes Pitarch, Luis Miguel (2020-04-10)
      Article
      Accés obert
      In 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 ...
    • Microplane model M7 for plain concrete. I: Formulation 

      Caner, Ferhun Cem; Bažant, Zdeněk Pavel (American Society of Civil Engineers (ASCE), 2013-12-01)
      Article
      Accés restringit per política de l'editorial
      Mathematical modeling of the nonlinear triaxial behavior and damage of such a complexmaterial as concrete has been a long-standing challenge in which progress has been made only in gradual increments. The goal of this ...
    • Model-wise algorithm for the resolution of fatigue problems 

      Barbu, Lucia Gratiela; Oller Martínez, Sergio Horacio; Martínez García, Javier; Barbat Barbat, Horia Alejandro (CIMNE, 2015)
      Text en actes de congrés
      Accés obert
      The present work presents a general constitutive model formulation and a numerical algorithm for automatically selecting the appropriate coupling of damage and plasticity as a function of the number of cycles the material ...
    • Modeling of the behavior in high-cycle fatigue based on the coupling plasticity-damage in a mesoscopic scale 

      Messellek, A. C.; Belouchrani, M. E. A. (CIMNE, 2015)
      Comunicació de congrés
      Accés obert
      The methods of prediction of lifespan in high cycle fatigue are under development since decades and are used by engineers to dimension the structures. The purpose of the work presented in this paper is to establish a ...
    • Numerical modelling of masonry shear walls failure mechanisms 

      Drougkas, Anastasios; Pelà, Luca; Roca Fabregat, Pedro (2014)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      This paper presents an investigation on the ability of two alternative FE-based numerical methods to simulate the in-plane strength and collapse of brick masonry shear walls. The methods considered consist of a meso-model, ...
    • On the discrete constitutive models induced by strong discontinuity kinematics and continuum constitutive equations 

      Oliver Olivella, Xavier (2000-11)
      Article
      Accés obert
      On the basis of continuum constitutive models (stress vs. strain), the introduction of strong discontinuity kinematics (considering jumps in the displacement fields across a discontinuity interface) induces projected ...
    • On the equivalence between traction- and stress-based approaches for the modeling of localized failure in solids 

      Wu, Jian-Ying; Cervera Ruiz, Miguel (2015-09)
      Article
      Accés obert
      This work investigates systematically traction- and stress-based approaches for the modeling of strong and regularized discontinuities induced by localized failure in solids. Two complementary methodologies, i.e., ...
    • On the strong discontinuity approach in finite deformation settings 

      Oliver Olivella, Xavier; Huespe, Alfredo Edmundo; Gómez Pulido, M. Dolores; Samaniego Alvarado, Esteban (John Wiley & sons, 2003-02)
      Article
      Accés obert
      Taking the strong discontinuity approach as a framework for modelling displacement discontinuities and strain localization phenomena, this work extends previous results in infinitesimal strain settings to finite deformation ...
    • Online cellphone battery entropy measurement for SoH estimation 

      Cuadras Tomàs, Àngel; Meinert, Florian; Büschel, Paul; Kanoun, Olfa (2016)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      The widespread use of batteries requires knowledge of their state of health (SoH). In this paper we present a method to use entropy evolution as an aging indicator for batteries. Voltage, current and temperature are ...
    • Phase transformation and subsurface damage in 3Y-TZP after sandblasting 

      Chintapalli, R.K.; García Marro, Fernando; Jiménez Piqué, Emilio; Anglada Gomila, Marcos Juan (2013-05)
      Article
      Accés restringit per política de l'editorial
      Objective The goal of this work is to investigate t–m phase transformation, and subsurface damage in 3Y-TZP after sandblasting. Methods Commercial grade 3Y-TZP powder was conventionally sintered and fully dense ...
    • Plastic damage model for nonlinear reinforced concrete frames analysis 

      Faleiro de Freitas, Jeovan; Barbat Barbat, Horia Alejandro; Oller Martínez, Sergio Horacio (2005)
      Text en actes de congrés
      Accés obert
      This paper describes an improved analytical model for predicting the nonlinear response of multistory reinforced concrete frames, based on the concepts of isotropic continuum damage mechanics combined with plasticity theory. ...
    • Probabilistic assessment of seismic risk in urban areas 

      Aguilar, Armando; Pujades Beneit, Lluís; Barbat Barbat, Horia Alejandro; Ordaz Schroder, Mario Gustavo (2008-01-31)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      A probabilistic approach to estimate the expected seismic physical damage of existing buildings in urban areas is presented. The main steps of the procedure are seismic hazard, vulnerability and structural response. These ...
    • Reliability-based approach to the robustness of corroded reinforced concrete structures 

      Cavaco, E. S.; Neves, Luís A.C; Casas Rius, Joan Ramon (2017-04)
      Article
      Accés obert
      Currently, decisions on the maintenance and repair of infrastructural assets, structures in particular, are mostly based on the results of inspections and the resulting condition index, neglecting system robustness and ...
    • Simulation of damage growth in pre-notched cylindrical test specimens using continuum damage mechanics model 

      Kumar, Manoj; Dixit, P. M. (CIMNE, 2015)
      Comunicació de congrés
      Accés obert
      Ductile fracture occurs due to micro-void nucleation, growth and, finally coalescence into micro-cracks. These micro-cracks grow as the deformation progresses. Nowadays, continuum damage mechanics model is employed as one ...
    • Strain localization of elastic-damaging frictional-cohesive materials: analytical results and numerical verification 

      Wu, Jian-Ying; Cervera Ruiz, Miguel (2017-04-20)
      Article
      Accés obert
      Damage-induced strain softening is of vital importance for the modeling of localized failure in frictional-cohesive materials. This paper addresses strain localization of damaging solids and the resulting consistent ...
    • Strain-induced network chains damage in carbon black filled EPDM 

      Candau, Nicolas; Oguz, Oguzhan; Peuvrel-Disdier, Edith; Bouvard, Jean-Luc; Pradille, Christophe; Billon, Noëlle (Elsevier, 2019-06)
      Article
      Accés obert
      This paper presents an experimental method to follow in-situ the chains network alteration of filled vulcanized rubbers induced by deformation. Macroscopic damage is first investigated on a series of EPDM by quantifying ...
    • Structural size effect: experimental, theoretical and accurate computational assessment 

      Barbat Vlad, Gabriel; Cervera Ruiz, Miguel; Chiumenti, Michele; Espinoza Durán, Eduardo (Elsevier, 2020-06)
      Article
      Accés obert
      In this paper, experimental evidence, theoretical predictions and the finite element modelling of the structural size effect in cracking problems of quasi-brittle materials are discussed and assessed against each other. ...
    • The confinement of mortar in masonry under compression: experimental data and micro-mechanical analysis 

      Drougkas, Anastasios; Verstrynge, Els; Hayen, Roald; Van Balen, Koen (2019-05)
      Article
      Accés obert
      The present paper deals with the behavior of several types of mortar in masonry under compression. The quantification of the response of mortar to triaxial confinement afforded by the masonry units in the composite subjected ...