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Geometrical optics applied to composites heating by laser beam

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Geometrical optics applied to composites heating by laser beam

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dc.contributor.advisor Chinesta, Francisco es_ES
dc.contributor.author Lorente Estellés, Blanca es_ES
dc.date.accessioned 2015-09-24T09:30:14Z
dc.date.available 2015-09-24T09:30:14Z
dc.date.created 2015-05
dc.date.issued 2015-09-24
dc.identifier.uri http://hdl.handle.net/10251/55059
dc.description.abstract Consulta en la Biblioteca ETSI Industriales (Riunet) es_ES
dc.description.abstract [en] Recently a novel composites manufacturing process using thermoplastic materials, known as Laser Assisted Tape Placement (LATP) has awaken great interest due to its broad range of applications in the automotive, aeronautic and space industries. The rationale behind the substitution of thermoset by thermoplastics materials is avoiding the use of autoclaves, traditionally required when considering the use of thermosets, that implies costly resources, long processing times and high energy consumption. ATP technologies use a laser beam for melting the thermoplastic ensuring the tape consolidation. In order to simulate the heating process one must consider one of the available models related to geometrical optics. The most widely used are ray-tracing models that despite their conceptual simplicity require too much computation for tracking individual laser trajectories. The purpose of this work is developing an alternative methodology for simulating laser-composite interaction. In fact fibers surface acts as a mirror that absorb a part of the incoming flux contributing to its heating. Our approach, instead of simulating the path of any given beam, establishes the relations between the power reaching and leaving each portion of the fibers surface, the last described from a polygon whose faces act as mirrors, and the visibility between these different mirrors. A large matrix containing all this information is obtained and solved only once to obtain all the valuable information. The main disadvantage of this method is the size of the resulting matrix whose dimension scales with the number of mirrors considered in the discretization of the fibers surface. Noting that the number of mirrors could be of several millions, coarser descriptions and/or the use of GPU-based computation seem compulsory. es_ES
dc.language Inglés es_ES
dc.rights Reserva de todos los derechos es_ES
dc.subject Consulta en la Biblioteca ETSI Industriales es_ES
dc.subject Materiales compuestos es_ES
dc.subject Calentamiento por laser es_ES
dc.subject Óptica geométrica es_ES
dc.subject.classification CIENCIA DE LOS MATERIALES E INGENIERIA METALURGICA es_ES
dc.subject.other Ingeniero Industrial-Enginyer Industrial es_ES
dc.title Geometrical optics applied to composites heating by laser beam es_ES
dc.type Proyecto/Trabajo fin de carrera/grado es_ES
dc.rights.accessRights Cerrado es_ES
dc.contributor.affiliation Universitat Politècnica de València. Escuela Técnica Superior de Ingenieros Industriales - Escola Tècnica Superior d'Enginyers Industrials es_ES
dc.description.bibliographicCitation Lorente Estellés, B. (2015). Geometrical optics applied to composites heating by laser beam. http://hdl.handle.net/10251/55059. es_ES
dc.description.accrualMethod Archivo delegado es_ES


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