Browsing by Subject "Materials -- Mechanical properties"

Now showing items 1-20 of 20

  • A multi-scale theoretical model for soft materials 

    Marti Gallego, Enric (Universitat Politècnica de Catalunya, 2018-09-27)
    Bachelor thesis
    Open Access
    Many manufactured materials, such as rubbers, are made of several constituents with very different mechanical stiffness. Interestingly, the overall mechanical response of the material exhibits a very particular response ...

  • Assessment of corrosion-induced changes on the mechanical integrity of cemented carbides at small length scales 

    Zheng, Y.F.; Fargas Ribas, Gemma; Besharatloo, H.; Serra, Marco; Roa Rovira, Joan Josep; Armelín Diggroc, Elaine Aparecida; Lavigne, Olivier; Llanes Pitarch, Luis Miguel (2019-11-01)
    Article
    Restricted access - publisher's policy
    In this work, the effect of corrosion-induced damage on the mechanical response of hardmetals was evaluated at small length-scale by means of nanoindentation and nanoscratch techniques. Damage was introduced in a controlled ...

  • Carbon addition effects on microstructure and small-scale hardness for Ti(C,N)-FeNi cermets 

    Besharatloo, H.; Nicolás Morillas, Maria de; Wheeler, J.M.; Mateo García, Antonio Manuel; Ferrari, Begoña; Gordo Odériz, Elena; Llanes Pitarch, Luis Miguel; Roa Rovira, Joan Josep (2019-12-01)
    Article
    Restricted access - publisher's policy
    The current study investigates the influence of carbon addition on the microstructural and micromechanical properties of Ti(C,N)-FeNi cermets with different ceramic/metal phase ratios. Evaluation of small-scale hardness ...

  • Characterization of the degradation behaviour of Passive Fire Protector materials 

    Anaut Rufas, Celia (Universitat Politècnica de Catalunya / Università di Bologna, 2010)
    Master thesis (pre-Bologna period)
    Open Access
    Passive Fire Protection (PFP) is used to protect industrial equipment against accidental fires, delaying the temperature rise and the loss of mechanical properties of the structural materials. If properly applied, this may ...

  • Design and additive manufacturing of architected materials with non-linear mechanical response 

    Fabián Alfonso, Ricardo (Universitat Politècnica de Catalunya / University of California, Irvine, 2013)
    Bachelor thesis
    Restricted access - author's decision
    Covenantee:  University of California, Irvine
    Most structural systems are designed to operate in their elastic regime, resulting in a linear relationship between applied loads and resulting displacements. This behavior is easy to analyze but not necessarily optimal ...

  • Detección de puntos calientes en estructuras utilizando ondas guiadas 

    Romero Lozano, Jesús (Universitat Politècnica de Catalunya, 2019-05-28)
    Bachelor thesis
    Open Access
    Detección de puntos calientes en estructuras utilizando ondas guiadas.

  • Efecto de la variabilidad de las propiedades mecánicas de los materiales en la respuesta estructural de edificios de mampostería no reforzada 

    Gracia Madridejos, Ricardo (Universitat Politècnica de Catalunya, 2018-06-28)
    Bachelor thesis
    Open Access
    El distritode L’Eixample de Barcelona fue construido en su mayor parte entrelos años1860 y 1940. Por esta razón, la gran mayoría de estos edificios, normalmente levantados con mampostería no reforzada, ya han ...

  • Experimental methods to measure mechanical properties of cross country skis: Load-displacement and contact surface 

    Fadurdo Orellana, Roger (Universitat Politècnica de Catalunya / Luleå Tekniska Universitet, 2011)
    Master thesis (pre-Bologna period)
    Open Access
    Initially, cross country skis were used to move from place to place through the snow in winter. Now mainly it is performed in recreational and competition environments. Its intuitive basic technique, the direct contact ...

  • Influencia del bruñido en las propiedades mecánicas del acero ST37 

    Rue Mascarell, Jaume (Universitat Politècnica de Catalunya, 2019-07-03)
    Bachelor thesis
    Open Access
    El brunyit amb bola és una operació d’acabat que presenta una sèrie d’avantatges , ja que millora diverses propietats del material en una sola operació. En aquest treball s’estudiarà la influència d’aquest ...

  • Kinetics of mechanical connections in wood structures 

    Ramírez Opisso, Daniel (Universitat Politècnica de Catalunya / Denmarks Tekniske Universitet, 2013)
    Bachelor thesis
    Open Access
    Covenantee:  Danmarks tekniske universitet
    As a part of the process of renovation of Eurocode-5, a study on the variables affecting the load bearing capacity and the kinetics of mechanical connections is conducted together with an investigation on the influence of ...

  • Mechanical behavior of PVD coatings deposited on ADI 

    Colombo, Diego Alejandro; Márquez, Adriana Beatriz; García Marro, Fernando; Llanes Pitarch, Luis Miguel; Sosa, Amadeo Daniel (2019-01-01)
    Article
    Open Access
    In this work, the mechanical behavior of the coated ADI system is studied. For this purpose, single layer Ti and bilayer Ti/TiN and TiAl/TiAlN coatings, with different thicknesses, were deposited by the PVD technique of ...

  • Microstructural and mechanical properties correlation at the micro- and nanometric length scale of different cBN grade 

    Gordon Pozuelo, Sandra (Universitat Politècnica de Catalunya, 2018-07-11)
    Master thesis
    Restricted access - author's decision
    Two different heterogeneous ceramic/ceramic composite materials based on cBN reinforcement particles will be investigated in order to correlate their microstructure (i.e. grain size, contiguity, etc) and micromechanical ...

  • Microstructure and mechanical properties of AA6082-T6 by ECAP under warm processing 

    Khelfa, T.; Muñoz Bolaños, J.A.; Li, F.; Cabrera Marrero, José M.; Khitouni, Mohamed (2019-07-27)
    Article
    Restricted access - publisher's policy
    An AA6082 alloy deformed by equal channel angular pressing (ECAP) was studied. The evolution of microstructure as a function of the strain imparted was evaluated by optical microscopy (OM), scanning electron microscopy ...

  • Protocol for determining porosity and mechanical properties of ZrO2 obtained throug 3D-printing 

    Bondia Huerta, David (Universitat Politècnica de Catalunya, 2019-07-04)
    Master thesis
    Open Access
    New technologies, such as robocasting, arrive in the 20thcentury fordoing the competence to traditional manufacturing techniques. These techniquesenablethe possibility to produce more versatile ceramic ...

  • Small-scale mechanical properties of constitutive phases within a polycrystalline cubic boron nitride composite 

    Besharatloo, Hossein; Gordon Pozuelo, Sandra; Rodríguez Suárez, Teresa; Llanes Pitarch, Luis Miguel; Roa Rovira, Joan Josep (Elsevier, 2019-01-01)
    Article
    Restricted access - publisher's policy
    Micromechanical properties of a polycrystalline cubic boron nitride (PcBN) composite have been assessed by statistical analysis of data gathered from experimental massive nanoindentation. The mechanical study was complemented ...

  • Strain localization analysis of Hill’s orthotropic elastoplasticity: analytical results and numerical verification 

    Cervera Ruiz, Miguel; Wu, Jian-Ying; Chiumenti, Michèle; Kim, Sungchul (Springer, 2020-02)
    Article
    Restricted access - publisher's policy
    In this work the strain localization analysis of Hill’s orthotropic plasticity is addressed. In particular, the localization condition derived from the boundedness of stress rates together with Maxwell’s kinematics is ...

  • Structural heterogeneities and mechanical behavior of amorphous alloys 

    Qiao, Jichao; Wang, Q; Pelletier, J. M.; Kato, Hidemi; Casalini, Riccardo; Crespo Artiaga, Daniel; Pineda Soler, Eloi; Yao, Yao; Yang, Y (2019-07-01)
    Article
    Restricted access - publisher's policy
    Although the atomic structure of amorphous alloys, which lacks long-range translational symmetry, may appear homogeneous at the macroscopic scale, their local dynamic and/or static properties however vary significantly ...

  • Study of mechanical properties in specimens manufactured by FFF 

    Mimbrero Gallardo, Marc (Universitat Politècnica de Catalunya, 2019-05-20)
    Bachelor thesis
    Open Access
    El present projecte té com a finalitat l'estudi de les propietats mecàniques del Timber fill segons els paràmetres de fabricació utilitzats, analitzant-lesen assajos a flexió a quatre punts. Per l'estudi ...

  • Titanium components by additive manufacturing 

    Thomas, Laura (Universitat Politècnica de Catalunya, 2019-02-13)
    Master thesis
    Open Access
    Covenantee:  UNIVERSITÉ DE LORRAINE
    Advanced characterization techniques, such as FIB, TEM and EBSD will be used to analyze Ti samples produced by additive manufacturing. Microstructural parameters, as well as mechanical properties at micro and macro levels ...

  • WC-base cemented carbides with partial and total substitution of Co as binder: Evaluation of mechanical response by means of uniaxial compression of micropillars 

    Sandoval Ravotti, Daniela Andreina; Rinaldi, Antonio; Notargiacomo, A.; Ther, O; Roa Rovira, Joan Josep; Llanes Pitarch, Luis Miguel (2019-11-01)
    Article
    Restricted access - publisher's policy
    The influence of the chemical nature of the metallic binder on the plastic deformation of cemented carbides was studied. Three different cemented carbide grades - WC-Co, WC-CoNi and WC-NiMo - with similar microstructural ...