Ara es mostren els items 38308-38327 de 84327

  • Fracture and Fatigue behavior of WC-Ni Cemented Carbides 

    Ferraro, Claudio (Universitat Politècnica de Catalunya, 2012-06)
    Treball Final de Grau
    Accés restringit per decisió de l'autor
    It is now well-established that cemented carbides exhibit outstanding mechanical properties, combining the hardness of the ceramic phase with the toughness of the binder phase, as compared to other materials used for ...
  • Fracture and fatigue of rock bit cemented carbides: Mechanics and mechanisms of crack growth resistance under monotonic and cyclic loading 

    Torres, Y.; Tarragó Cifre, Jose María; Coureaux Mustelier, David; Tarrés, E.; Roebuck, C.; Chan, P.; James, M.; Liang, B.; Tillman, M.; Viswanadham, R.K.; Mingard, K.P.; Mestra Rodríguez, Álvaro Miguel; Llanes Pitarch, Luis Miguel (2014-07-01)
    Article
    Accés restringit per política de l'editorial
    In an attempt to improve the material selection, design and reliability of rock bit WC-Co cemented carbides (hardmetals), an extensive and detailed study is conducted with the main goal of characterizing the fracture and ...
  • Fracture behavior of quenched poly(lactic acid) 

    Gamez Pérez, José; Velázquez Infante, Julio César; Franco Urquiza, Edgar Adrian; Pagès Figueras, Pere; Carrasco, F; Santana Pérez, Orlando Onofre; Maspoch Rulduà, Mª Lluïsa (2011-01)
    Article
    Accés restringit per política de l'editorial
    The effect of a quenching treatment applied on heated cast sheet extruded films of two poly(lactic acid) (PLA) commercial grades, with different optical purities, was studied. The thermal and mechanical properties of the ...
  • Fracture behaviour of an EPBC film. Study of the relationships between J0 and EWF 

    Martínez Benasat, Antonio; Delgado, A; Segovia, Angélica; Sánchez Soto, Miguel; Salazar, Alicia (2010)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    The fracture behavior for a film of ethylene-propylene block copolymer has been studied applying the essential work of fracture method. Double-Edge Notch Tensile (DDENT) specimens were sharpened by two different techniques. ...
  • Fracture behaviour of de-aged poly(lactic acid) assessed by essential work of fracture and J-Integral methods 

    Santana Pérez, Orlando Onofre; Rodríguez, C.; Belzunce, J.; Gamez Pérez, José; Carrasco Alonso, Félix Ángel; Maspoch Rulduà, Mª Lluïsa (2010-12)
    Article
    Accés restringit per política de l'editorial
    The applicability of the essential work of fracture (EWF) in SENB geometry as an alternative to the J-integral methodology has been assessed. An amorphous poly(lactic acid) (PLA) with ductile behaviour promoted by a de-ageing ...
  • Fracture behaviour of flexible polyethylene foams for potential use in damping applications 

    Velasco Perero, José Ignacio; Antunes, Marcelo de Sousa Pais; Arencón Osuna, David; Martínez Benasat, Antonio (Trans Tech Publications, 2011-09)
    Article
    Accés restringit per política de l'editorial
    The application of the essential work of fracture (EWF) methodology for the fracture behavior characterization of closed-cell low density polyethylene flexible foams is discussed in the present paper. The thickness of ...
  • Fracture behaviour of poly[ethylene–(vinyl alcohol)]/organo-clay composites 

    Maspoch Rulduà, Mª Lluïsa; Franco Urquiza, Edgar Adrian; Gamez Pérez, José; Santana Pérez, Orlando Onofre; Sánchez Soto, Miguel (2009-04-14)
    Article
    Accés restringit per política de l'editorial
    BACKGROUND: Ethylene–(vinyl alcohol) (EVOH) copolymer/organo-modified montmorillonite (OMMT) composites were investigated. Composites with two different percentages by weight of OMMT were prepared using a melt-extrusion ...
  • Fracture behaviour study of short fibre reinforced polymers 

    Viñas, Lluís (Universitat Politècnica de Catalunya, 2014-09)
    Projecte/Treball Final de Carrera
    Accés obert
    This study is on the fracture behaviour of short fibre polymers on which fracture toughness (K) is calculated through some testings with the help of LEFM (Linear Elastic Fracture Mechanics) theory. The materials used were ...
  • Fracture micromechanisms and mechanical behavior of YBCO bulk superconductors at 77 and 300 K 

    Konstantopoulou, K; Roa Rovira, Joan Josep; Jiménez Piqué, Emilio; Segarra Rubi, Merce; Pastor, J. Y. (2014-09-01)
    Article
    Accés restringit per política de l'editorial
    In this study two YBa2Cu3O7-delta bulk superconductors were evaluated, with the aim of analyzing the influence of the processing method (TSMG and Bridgman) and the test temperature on their mechanical behavior. The ...
  • Fracture toughening and toughness asymmetry induced by flexoelectricity 

    Abdollahi Hosnijeh, Amir; Peco, Christian; Millán, Daniel; Arroyo Balaguer, Marino; Catalan, Gustau; Arias Vicente, Irene (2015-09-08)
    Article
    Accés restringit per política de l'editorial
    Cracks generate the largest strain gradients that any material can withstand. Flexoelectricity (coupling between strain gradient and polarization) must therefore play an important role in fracture physics. Here we use a ...
  • Fracture toughness characterization of advanced high strength steels by means of the essential work of fracture 

    Llobet Lorenzo, Alberto; Casellas Padró, Daniel; Riera Colom, María Dolores; Prado Pozuelo, José Manuel (2008)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    Fracture toughness cannot be readily measured in metal sheet because the small thickness in which they are used (1-3 mm). In this sense the essential work of fracture (EWF) has been successfully applied to determine ...
  • Fracture toughness of cemented carbides: Testing method and microstructural effects 

    Sheikh, Saad; M'Saoubi, Rachid; Flasar, Petr; Schwind, Martin; Persson, Tomas; Yang, Jing; Llanes Pitarch, Luis Miguel (2015-03-01)
    Article
    Accés restringit per política de l'editorial
    Fracture toughness is one the most important parameters for design applications and performance assessment of WC-Co cemented carbides (hardmetals). Different from hardness, fracture toughness is commonly a property more ...
  • Fracture toughness of polypropylene-based particulate composites 

    Arencón Osuna, David; Velasco Perero, José Ignacio (2009-11-30)
    Article
    Accés obert
    The fracture behaviour of polymers is strongly affected by the addition of rigid particles. Several features of the particles have a decisive influence on the values of the fracture toughness: shape and size, chemical ...
  • Fracture toughness of zirconia from a shallow notch produced by ultra-short pulsed laser ablation 

    Turón Viñas, Miquel; Anglada Gomila, Marcos Juan (Elsevier, 2014-07-01)
    Article
    Accés restringit per política de l'editorial
    Ceria partially stabilized zirconia ceramics (Ce-TZP) with identical grain size and different amounts of transformation toughening were processed to investigate the influence of phase transformation on static and cyclic ...
  • Fracture toughness reliability in polycarbonate: notch sharpening effects 

    Salazar, Alicia; Rodríguez, Jesús; Martínez Benasat, Antonio (2014-01-06)
    Article
    Accés obert
    The effect of the notch sharpening on the fracture toughness obtained under linear elastic fracture mechanics has been analyzed in an amorphous polycarbonate. The samples for fracture characterization were sharpened via ...
  • Fragility and glass-forming ability of the Ca-Mg-Cu system 

    Pineda Soler, Eloi; Zhang, Yi; Greer, A. L. (Elsevier, 2007-05-31)
    Article
    Accés obert
    Elastic moduli of the glass and fragility of the corresponding supercooled liquid were found to be correlated in recently published results. In the present work, compositions within the Ca–Mg–Cu system are used to study ...
  • Fragility measurement of Pd-based metallic glass by dynamic mechanical analysis 

    Pineda Soler, Eloi; Serrano Gutiérrez, Jorge; Bruna Escuer, Pere; Crespo Artiaga, Daniel (2010-08)
    Article
    Accés restringit per política de l'editorial
    The measurement of fragility of glass-forming liquids involves either the determination of viscosity at different temperatures above the glass transition or the measurement of the dynamic glass–liquid transition by ...
  • Fragilización de aceros dúplex 

    Amadou Mback, Pape (Universitat Politècnica de Catalunya, 2005-02)
    Projecte/Treball Final de Carrera
    Accés obert
    La meta de este proyecto es estudiar la fragilización de un acero dúplex SAF 2507 con principales elementos de aleación en las proporciones siguientes: 24,8 % Cr, 6,89 % Ni, 3,83% Mo y 0,27 % N. Las muestras a estudiar ...
  • Fragment and inclusion : urban architecture in contemporary Barcelona 

    Song, Wei (Universitat Politècnica de Catalunya, 2015-07-14)
    Tesi
    Accés obert
    The main issue of the thesis is to discuss the method of building relationships between architecture and city through analyzing projects by Barcelona architects. There are two hypothesizes of the thesis: fragment and ...
  • Fragmentación y segregación: el fenómeno "countries" en la ciudad de Córdoba 

    Reyna Iglessias, Mariana (Universitat Politècnica de Catalunya, 2015-10)
    Projecte Final de Màster Oficial
    Accés obert