Ara es mostren els items 8-15 de 15

  • Management and safety of existing concrete structures via optical fiber distributed sensing 

    Casas Rius, Joan Ramon; Villalba Herrero, Sergi; Villalba Herrero, Vicenç (CRC Press Taylor & Francis Group, 2014)
    Capítol de llibre
    Accés restringit per política de l'editorial
    The use of Optical Backscatter Reflectometer (OBR) as a distributed fiber optic system to measure strain and detect cracking in concrete structures is investigated. A laboratory experience in a concrete slab is first ...
  • Modelling fluid flow in opalinus clay excavation damage zone: a semi-analytical approach 

    Alcoverro Bassols, Jordi; Olivella Pastallé, Sebastià; Alonso Pérez de Agreda, Eduardo (2014-12)
    Accés restringit per política de l'editorial
    The HG-A in situ test, located at the Mont Terri Underground Rock Laboratory (URL), was analysed as part of the FORGE project. This test investigated the behaviour of the excavation damage zone (EDZ) around a backfilled ...
  • Numerical homogenization for composite materials analysis: comparison with other micro mechanical formulations 

    Otero Gruer, Fermín Enrique; Oller Martínez, Sergio Horacio; Martínez García, Javier; Salomón, Ramón Omar (2015-04)
    Accés restringit per política de l'editorial
    This work presents a two-scale homogenization procedure to analyze three dimension composite structures by FEM. The theory implemented is compared with other micro-structural formulations: micro models and serial parallel ...
  • Numerical simulation of failure involving multiple cracks with smoothed displacements. 

    Olm Serra, Marc (Universitat Politècnica de Catalunya, 2013-05-13)
    Accés obert
    To numerically simulate a failure process, damage models can be used. In order to avoid mesh dependency problems of local damage models, nonlocal models are employed. The use of nonlocal displacements is an efficient ...
  • Reduced kinematic formulation based on the strong discontinuity method for reinforced concrete components 

    Kishta, E.; Richard, B.; Giry, C.; Ragueneau, F. (CIMNE, 2015)
    Text en actes de congrés
    Accés obert
    Damage models, developed in the last decades, insure a continuous description of the fracture process zone in quasi-brittle materials but fail at representing fine information of the cracking features such as openings and ...
  • Strain localization and failure mechanics for elastoplastic damage solids 

    Wu, Jian-Ying; Cervera Ruiz, Miguel (Centre Internacional de Mètodes Numèrics en Enginyeria (CIMNE), 2014)
    Accés restringit per política de l'editorial
    This work investigates systematically strain localization and failure mechanics for elastoplastic damage solids. Two complementary methodologies, i.e., traction-based discontinuities localized in an elastic solid and strain ...
  • Structural system identification of cable-stayed bridges with observability techniques 

    Lozano Galant, Jose Antono; Nogal Macho, María; Payá Zaforteza, Ignacio Javier; Turmo Coderque, José (2014)
    Accés restringit per política de l'editorial
    Cable-stayed bridges are highly statically redundant, light and flexible structures. This complexity highlights the role of the structural system identification (SSI) method in the calibration of the actual properties of ...
  • Tunnel assessment with borehole radar 

    Pérez Gracia, María de la Vega; Caselles Magallón, Josep Oriol; Clapes Boixader, Jaime; Canas Torres, José Antonio (2017)
    Comunicació de congrés
    Accés obert
    The collapse of a tunnel and the damage in a second tunnel during the construction works, forced to the assessment of the ground in the front tunnel of the second structure, in order to avoid additional problems. The first ...