Exploració per tema "Fatigue"

Ara es mostren els items 1-20 de 82

    • A phenomenological cohesive model of ferroelectric fatigue 

      Arias Vicente, Irene; Serebrinsky, S; Ortiz, Michael (2006-02)
      Article
      Accés obert
      We develop a phenomenological model of electro-mechanical ferroelectric fatigue based on a ferroelectric cohesive law that couples mechanical displacement and electric-potential discontinuity to mechanical tractions and ...

    • A simplified methodology to evaluate the design specifications of hydraulic components 

      Roquet, Pedro; Gámez Montero, Pedro Javier; Castilla López, Roberto; Raush Alviach, Gustavo Adolfo; Codina Macià, Esteban (Multidisciplinary Digital Publishing Institute, 2018-09-11)
      Article
      Accés obert
      The fatigue of a hydraulic component inherently varies due to various factors that can be divided into two categories: structural and load spectrum variability. The effects of both variabilities must be considered when ...

    • Ageing and temperature effect on the fatigue performance of bituminous mixtures 

      López Montero, Teresa; Miró Recasens, José Rodrigo (Instituto Técnico de la Construcción y del Cemento, 2017-07)
      Article
      Accés obert
      The ageing of asphalt mixes, together with their exposure to low temperatures, causes a progressive increase of cracking. In this paper, the effect of ageing and temperature on the fatigue of asphalt concretes made with ...

    • An experimental and numerical investigation on fatigue of composite and metal aircraft structures 

      Pitta, Siddharth; Rojas Gregorio, José Ignacio; Roure Fernández, Francisco; Crespo Artiaga, Daniel; Wahab, Magd Abdel (2022-04)
      Article
      Accés obert
      The static strength and fatigue crack resistance of the aircraft skin structures depend on the materials used and joint type. Most of the commercial aircraft’s skin panel structures are made from aluminium alloy and carbon ...

    • Analysis of the thixotropic behavior and the deterioration process of bitumen in fatigue tests 

      Pérez Jiménez, Félix Edmundo; Botella Nieto, Ramón; Miró Recasens, José Rodrigo; Martínez Reguero, Adriana Haydée (2015-12)
      Article
      Accés obert
      The characterization of fatigue damage on bituminous materials under cyclic loading has been classically studied using tests and procedures previously developed for the characterization of metallic materials. However, these ...

    • Application of the Compression Chord Capacity Model to predict the fatigue shear strength of reinforced concrete members without stirrups 

      Cladera Bohigas, Antoni; Ribas González, Carlos Rodrigo; Oller Ibars, Eva; Marí Bernat, Antonio Ricardo (Editorial Club Universitario, 2019)
      Text en actes de congrés
      Accés obert
      The Compression Chord Capacity Model (CCCM), previously developed by the authors with other colleagues, is a simplified model for the shear strength prediction of reinforced and prestressed concrete members with and without ...

    • Asphalt toughness effect on bituminous mixture fatigue behavior 

      Noguera, Alfredo H.; Miró Recasens, José Rodrigo (Pontificia Universidad Católica de Chile, 2011-08)
      Article
      Accés obert
      One of the most important parameters to define bituminous mixture behavior in service is the toughness that the bitumen provides when binding the aggregate particles; that is; the dissipated energy during the materials ...

    • Bending fatigue of macrosynthetic fibre reinforced concrete: experimental program and preliminary constitutive equation 

      Martinello Carlesso, Debora; Fuente Antequera, Albert de la (2022)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      The use of fibre reinforced concrete (FRC) elements without traditional reinforcement is increasing in applications for which the structure is exposed to cyclic loadings, such as pavements, bridge deck overlays and offshore ...

    • Characterization of laplacian surface electromyographic signals during isometric contraction in biceps brachii 

      Estrada, Luis; Torres Cebrián, Abel; Garcia Casado, Javier; Prats Boluda, Gema; Jané Campos, Raimon (Institute of Electrical and Electronics Engineers (IEEE), 2013)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      Surface electromyography (sEMG) is a noninvasive technique for monitoring the electrical activity produced by the muscles. Usually, sEMG is performed by carrying out monopolar or bipolar recordings by means of conventional ...

    • Comparison of fatigue crack growth of riveted and bonded aircraft lap joints made of Aluminium alloy 2024-T3 substrates – A numerical study 

      Pitta, Siddharth; Rojas Gregorio, José Ignacio; Crespo Artiaga, Daniel (Institute of Physics (IOP), 2017)
      Text en actes de congrés
      Accés obert
      Aircraft lap joints play an important role in minimizing the operational cost of airlines. Hence, airlines pay more attention to these technologies to improve efficiency. Namely, a major time consuming and costly process ...

    • Complexity of the behaviour of asphalt materials in cyclic testing 

      Pérez Jiménez, Félix Edmundo; Botella Nieto, Ramón; López Montero, Teresa; Miró Recasens, José Rodrigo; Martínez Reguero, Adriana Haydée (2017-05)
      Article
      Accés obert
      This paper compares the results obtained in two types of cyclic tension-compression tests, a time sweep test, constant strain amplitude, and a strain sweep test, increasing strain amplitude every 5000 cycles, called EBADE ...

    • Comportement et propriétés mécaniques de l’alliage 6061-T6 soudé par arc électrique indirect modifié 

      Pons i Masbernat, Albert; Cobes Sánchez, David; Barriga Corzo, Sergio (Universitat Politècnica de Catalunya, 2010-06)
      Projecte/Treball Final de Carrera
      Accés obert
      Realitzat a/amb:   Institut Universitaire de Technologie A de Lille
      Ce projet porte sur l'étude des propriétés mécaniques de l'alliage d'aluminium 6061- T6 soudées en utilisant la technique MIEA (arc électrique indirect modifié). Il rentre dans le cadre d'un projet de recherche plus vaste ...

    • Contact Fatigue Behavior of PVD-Coated Steel 

      Ramírez, Giselle; Tarres, Elena; Casas Aguirregomezcorta, Begoña; Valls, Isaac; Martínez Martínez, María del Rosario; Llanes Pitarch, Luis Miguel (2009)
      Article
      Accés restringit per política de l'editorial
      In this study, the contact fatigue behavior of a PVD TiN coating deposited onto DIN 1.2379 coldwork tool steel is assessed by cyclic spherical indentation. Experimental characterization focuses on the evaluation of ...

    • Contact fatigue of veneer feldspathic porcelain on dental zirconia 

      Rueda Arango, Astrid Oasis; Anglada, M.; Jiménez Piqué, Emilio (2015-03-01)
      Article
      Accés obert
      Objectives. To understand the resistance to cyclic and static contact loading of feldspathic porcelain on dental zirconia (3Y-TZP), in order to understand the partial failure of porcelain (chipping or cracking).; Methods. ...

    • Corrosion effects on the mechanical properties of reinforcing steel bars: fatigue and s–e behavior 

      Fernández Pérez, Ignasi; Bairán García, Jesús Miguel; Marí Bernat, Antonio Ricardo (2015-12)
      Article
      Accés obert
      Corrosion of steel reinforcement is one of the most severe problems of durability in reinforced concrete structures. A good understanding of the corrosion effects on the reinforcing steel mechanical properties is necessary ...

    • Covid-19 control measures and its impact on seafarers’ mental health 

      López López, María N.; Campa Portela, Rosa Mary de la; Bouza Prego, María de los Ángeles; Sánchez Girón, Javier Ramón (Universitat Politècnica de Catalunya. Iniciativa Digital Politècnica, 2022-06-21)
      Comunicació de congrés
      Accés obert
      The appearance of COVID-19 in maritime transport has been an exceptional challenge for all stakeholders in this sector, mainly for seafarers who have been caught between the need to keep supply chains operational and the ...

    • Cyclic deformation fatigue behaviour of Ti6Al4V thermochemically nitrided for articular prostheses 

      Gil Mur, Francisco Javier; Manero Planella, José María; Rodríguez Rius, Daniel; Planell Estany, Josep Anton (2003)
      Article
      Accés obert
      Titanium and its alloys have many attractive properties including high specific strength, low density, and excellent corrosion resistance. Titanium and the Ti6Al4V alloy have long been recognized as materials with high ...

    • Cyclic testing setups to highlight the importance of heating and other reversible phenomena on asphalt mixtures 

      Botella Nieto, Ramón; Pérez Jiménez, Félix Edmundo; López Montero, Teresa; Miró Recasens, José Rodrigo (2020-05)
      Article
      Accés obert
      This paper highlights the importance of the reversible phenomena in cyclic testing of asphalt mixtures. Several tests were designed to quantify the importance of these phenomena, focusing especially on heating due to viscous ...

    • Differences in cracking resistance of asphalt mixtures due to ageing and moisture damage 

      López Montero, Teresa; Miró Recasens, José Rodrigo (2016-06)
      Article
      Accés obert
      The ageing phenomenon and moisture damage become key factors to evaluate mixture cracking resistance. In this paper, the effect of ageing and water on cracking resistance and fatigue behavior in a bituminous mixture is ...

    • Diseño de una máquina de ensayo a fatiga de chapa soldada por punto. 

      Miguelez Valverde, Javier (Universitat Politècnica de Catalunya, 2020-02-06)
      Treball Final de Grau
      Accés restringit per decisió de l'autor
      [CASTELLÀ] Actualmente se utiliza en gran medida el uso de chapas a nivel industrial. Para unirlas entre sí se utilizan diferentes técnicas y elementos de unión. Uno de los métodos más rápidos es la soldadura por puntos ...