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dc.contributorBarbu, Lucia Gratiela
dc.contributorOller Martínez, Sergio Horacio
dc.contributor.authorSalas Ordóñez, Ana
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament d'Enginyeria Civil i Ambiental
dc.description.abstractFibre-reinforced polymer-based composite materials fail due to a wide variety of interacting damage mechanisms, which require complex constitutive models in order to develop Finite Element (FE) predictive analysis. In the design of automotive components, the whole body of the vehicle is needed to be modelled for certain simulations. This makes necessary a computationally-efficient constitutive model in order to get a proper definition of its behaviour. In this master thesis, the model published by Mart´ın-Santos et al. in 2013 is taken as a reference, in order to take advantadge of the simplified loading functions and the reduced mesh influence in the results due to the implementation of the Crack Band Methodology. In this work, the model is upgraded to be able to reproduce the behaviour of a wider range of materials than the original model, and to become more stable in simulations regarding extreme loading conditions, as the crushing of the composite due to an axial impact event. The proposed constitutive model is implemented in Pam-Crash FE code, in order to take advantage of its well-proved experience in explicit analysis of specimens under dynamic loads in the automotive industry. The implementation is validated by comparing the results of FE predictions with experimental data from delamination and low-velocity impact tests. A good correlation between the numerical and experimental results is achieved when using a bilinear cohesive law, for the different models.
dc.publisherUniversitat Politècnica de Catalunya
dc.rightsAttribution-NonCommercial-ShareAlike 3.0 Spain
dc.subjectÀrees temàtiques de la UPC::Enginyeria civil
dc.subject.lcshFinite element method
dc.subject.lcshAutomobiles -- Equipement and supplies
dc.titleDamage and failure modelling of composite materials for the automotive industry
dc.typeMaster thesis
dc.subject.lemacElements finits, Mètode dels
dc.subject.lemacAutomòbils -- Equip i accessoris
dc.rights.accessOpen Access
dc.audience.mediatorEscola Tècnica Superior d'Enginyers de Camins, Canals i Ports de Barcelona

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