Now showing items 1-20 of 78

    • A four-noded quadrilateral element for composite laminated plates/shells using the refined zigzag theory 

      Eijo, Ariel; Oñate Ibáñez de Navarra, Eugenio; Oller Martínez, Sergio Horacio (John Wiley & Sons, 2013-08)
      Article
      Restricted access - publisher's policy
      A new bilinear four-noded quadrilateral element (called quadrilateral linear refined zigzag) for the analysis of composite laminated and sandwich plates/shells based on the refined zigzag theory is presented. The element ...
    • A new mechanical structural damage feature index based on HHT 

      Hua, Lin; Wang, Fusheng; Yue, Zhufeng (Universitat Politècnica de Catalunya. CIMNE, 2018)
      Article
      Open Access
      A new damage feature index is presented for the structural health monitoring based on Hilbert-Huang transform (HHT). The energy marginal spectrum of the dynamic signal is used to construct damage characteristic parameter, ...
    • A rule of mixtures approach for delamination damage analysis in composite materials 

      Taherzadeh Fard, Alireza; Cornejo Velázquez, Alejandro; Jiménez Reyes, Sergio; Barbu, Lucia Gratiela (2023-09)
      Article
      Open Access
      The present study aims at investigating the delamination behavior of laminated composites in different loading modes within a homogenization theory of mixtures. The delamination damage phenomenon is introduced at the bulk ...
    • Adaptive phase-field modeling of fracture in orthotropic composites 

      Ishank, Jain; Muixí Ballonga, Alba; Annavarapu, Chandrasekhar; Mulay, Shantanu; Rodríguez Ferran, Antonio (2023-11-15)
      Article
      Restricted access - publisher's policy
      An adaptive phase-field method is developed and applied to model fracture propagation in orthotropic composites. The proposed approach extends the work of Muixí et al. (2020) to orthotropic composites through following ...
    • Aerogeles compuestos multicapa a partir de biopolimeros y arcilla 

      Sánchez Soto, Miguel; Cruz Jesús, Lucía Guadalupe de la; Jokinen, Paul; Abt, Tobias Martin; Cailloux, Jonathan; Maspoch Rulduà, M. Lluïsa; Santana Pérez, Orlando Onofre (2019-10-15)
      Article
      Open Access
      En este trabajo se han desarrollado diferentes aerogeles con baja flamabilidad basados en la combinación de biopolimeros renovables y montmorillonta (MMT). Los compuestos fueron hechos usando agua como solvente y siguiendo ...
    • An efficient multi-scale method for non-linear analysis of composite structures 

      Otero Gruer, Fermín Enrique; Martínez García, Javier; Oller Martínez, Sergio Horacio; Salomon Rotlisbeger, Ramon Omar (2015-11-01)
      Article
      Open Access
      The use of multi-scale procedures is encouraged by the continuous increase of computational capacity, but it is still a challenge performing a non-linear analysis of real composite structures without the aid of large ...
    • An enhanced constitutive model to predict plastic deformation and multiple failure mechanisms in fibre-reinforced polymer composite materials 

      Ruiz Cózar, Ivan; Otero Gruer, Fermín Enrique; Maimi, Pere; González Juan, Emilio Vicente; Turon Travessa, Albert; Camanho, Pedro P. (2024-02-15)
      Article
      Open Access
      Spurious damage modes in continuum damage mechanics models for fiber-reinforced polymer composite materials based on the effective stress tensor can be generated when large strains occur. A methodology to prevent this ...
    • An XFEM/CZM implementation for massively parallel simulations of composites fracture 

      Vigueras, Guillermo; Sket, Federico; Samaniego, Cristobal; Wu, Ling; Noels, Ludovic; Tjahjanto, Denny; Casoni Rero, Eva; Houzeaux, Guillaume; Makradi, Ahmed; Molina-Aldareguia, Jon M.; Vázquez, Mariano; Jérusalem, Antoine (Elsevier, 2015-07)
      Article
      Open Access
      Because of their widely generalized use in many industries, composites are the subject of many research campaigns. More particularly, the development of both accurate and flexible numerical models able to capture their ...
    • Analysis of post-tensioned structures by means of a constitutive serial-parallel rule of mixtures 

      Jiménez Reyes, Sergio (Universitat Politècnica de Catalunya, 2018-06-14)
      Master thesis
      Open Access
      The main purpose is to test a reliable method based on a three-dimensional (3D) finite-element (FE) model to simulate the constitutive behavior of reinforced concrete structures strengthened with post-tensioned tendons. ...
    • Analysis of pre-tensioned structures by means of a constitutive Serial-Parallel rule of mixtures 

      Barbu, Lucia Gratiela; Escudero Torres, Cuauhtemoc; Cornejo Velázquez, Alejandro; Martínez García, Javier; Oller Martínez, Sergio Horacio; Barbat Barbat, Horia Alejandro (2017)
      Conference report
      Open Access
      The main purpose of this paper is to develop a reliable method based on a three-dimensional (3D) finite-element (FE) model to simulate the constitutive behaviour of reinforced concrete structures strengthened with ...
    • Analysis of the mock-up of a reactor containment building: comparison with experimental results 

      Jiménez Reyes, Sergio; Cornejo Velázquez, Alejandro; Barbu, Lucia Gratiela; Oller Martínez, Sergio Horacio; Barbat Barbat, Horia Alejandro (2020-04)
      Article
      Open Access
      The results of a predictive analysis of the mock-up of a reactor containment building, based on computer numerical simulation, are presented in this paper and compared with the results obtained in the context of the VeRCoRs ...
    • Anàlisi i optimització d'un xassís monocasc de fibra de carboni per Fórmula Student 

      Roca Caellas, Arnau (Universitat Politècnica de Catalunya, 2021-06-28)
      Bachelor thesis
      Restricted access - author's decision
      Aquest projecte s’ha dut a terme amb l’objectiu de desenvolupar un nou disseny de xassís monocasc amb una estructura de “Sandwich” amb compòsits com un pas endavant respecte del xassís d’acer tubular actual que utilitza ...
    • Análisis de materiales compuestos para la mejora de la durabilidad de neumáticos 

      Pinheiro Vidal, Arthur (Universitat Politècnica de Catalunya, 2020-10-27)
      Bachelor thesis
      Open Access
      Este trabajo constituye un análisis exhaustivo que tiene como objetivo principal mejorar la durabilidad de los neumáticos. En concreto, enfocándose en los materiales. Un propósito cada vez más buscado debido a los problemas ...
    • Assessment of CNT-doping and hot-wet storage aging effects on Mode I, II and I/II interlaminar fracture toughness of a UD Graphite/Epoxy material system 

      Plagianakos, Theofanis S.; Muñoz, Kirsa; Guillamet, Gerard; Prentzias, Vasileios; Quintanas-Corominas, Adrià; Jimenez, Miguel; Karachalios, Evangelos (Elsevier, 2020-02-01)
      Article
      Open Access
      The interlaminar fracture toughness of two unidirectional Graphite/Epoxy composite material systems has been experimentally assessed. The systems studied were prepreg composite and prepreg composite treated with carbon ...
    • Behavior of reinforced concrete short rectangular columns strengthened by steel lattice framed jacket 

      Alwasha, Nameer A.; Al-Zahid, Alia A. (CIMNE, 2015)
      Conference lecture
      Open Access
      The complete derivation of the more exact solution that controlled the behaviour of reinforced concrete short rectangular column strengthened by steel lattice frame jacket is presented including the effect of bond slip ...
    • Computational analysis of resisting marine FRP divisions exposed to fire. Application to the analysis of ship structures. 

      Pacheco Blázquez, Rafael; Capua, Daniel di; García Espinosa, Julio; Casals, Ovidi; Hakkarainen, Tuula; Tissari, Alexandra; Korkealaakso, Antti (University of Edinburgh, 2021)
      Conference report
      Open Access
      In this paper a numerical model for thermo-mechanical analysis of laminated composite structures under fire exposure is presented. The analysis is solved using a decoupled approach where temperature modifies ...
    • Concept design of a foil assisted powerboat 

      Llimona Torrente, Marina (Universitat Politècnica de Catalunya, 2018-05-31)
      Bachelor thesis
      Restricted access - author's decision
      Covenantee:   D3 Applied Technologies
      This project presents the complete preliminary design of a four meters foiling motorboat intended for recreational water sports. The design process has been carried in conjunction with a technical marine engineering office. ...
    • Controlled composite processing based on off-stoichiometric thiol-epoxy dual-curing systems with sequential heat release (SHR) 

      Fabregat Sanjuan, Albert; Fernández Francos, Xavier; Ferrando Piera, Francesc (Wiley, 2021-01-01)
      Article
      Open Access
      Control of curing rate and exothermicity during processing of thermosetting composite materials is essential in order to minimize the formation of internal stresses leading to mechanical and dimensional defects in the ...
    • Design and construction of a picosatellite’s primary structure by using 3D printing technologies 

      Nicolás Álvarez, Jorge (Universitat Politècnica de Catalunya, 2016-07-28)
      Bachelor thesis
      Open Access
      The viability of developing the design and manufacture of the structure of a small satellite CubeSat, at the School of Telecommunications and Aerospace Engineering of Castelldefels( EETAC), at the Polytechnical University ...
    • Development of a methodology for the characterization of long-fibre composite materials for crashworthiness applications using CAE 

      Orellana Favero, Rocío (Universitat Politècnica de Catalunya, 2023-09-07)
      Bachelor thesis
      Open Access
      Covenantee:   Applus+ IDIADA
      Composite materials have received a great deal of attention in recent years because of their exceptional mechanical properties and light weight, which make them suitable for a variety of engineering applications. One of ...