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Experimental Modal Analysis of transverse-cracked rails. Influence of the cracks on the real track behavior

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Experimental Modal Analysis of transverse-cracked rails. Influence of the cracks on the real track behavior

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dc.contributor.author Montalbán Domingo, María Laura es_ES
dc.contributor.author Baydal Giner, Beatriz es_ES
dc.contributor.author Zamorano Martín, Clara es_ES
dc.contributor.author Real Herráiz, Julia Irene es_ES
dc.date.accessioned 2015-11-18T13:16:06Z
dc.date.available 2015-11-18T13:16:06Z
dc.date.issued 2014-12
dc.identifier.issn 1225-4568
dc.identifier.uri http://hdl.handle.net/10251/57689
dc.description.abstract Rails are key elements in railway superstructure since these elements receive directly the train load transmitted by the wheels. Simultaneously, rails must provide effective stress transference to the rest of the track elements. This track element often deteriorates as a consequence of the vehicle passing or manufacturing imperfections that cause in rail several defects. Among these rail defects, transverse cracks highlights and are considered a severe pathology because they can suddenly trigger the rail failure. This study is focused on UIC-60 rails with transverse cracks. A 3-D FEM model is developed in ANSYS for the flawless rail in which conditions simulating the crack presence are implemented. To account for the inertia loss of the rail as a consequence of the cracking, a reduction of the bending stiffness of the rail is considered. The numerical models have been calibrated using the first four bending vibration modes in terms of frequencies. These vibration frequencies have been obtained using the Experimental Modal Analysis technique, studying the changes in the modal parameters of the rails induced by the crack and comparing the results obtained by the model with experimental results. Finally, the calibrated and validated models for the single rail have been implemented in a complete railway ballasted track FEM model in order to study the static influence of the cracks on the rail deflection caused by a load passing es_ES
dc.language Inglés es_ES
dc.publisher TECHNO-PRESS es_ES
dc.relation.ispartof Structural engineering and mechanics es_ES
dc.rights Reserva de todos los derechos es_ES
dc.subject Experimental Modal Analysis (EMA) es_ES
dc.subject Rail es_ES
dc.subject Transverse crack es_ES
dc.subject Finite element model (FEM) es_ES
dc.subject.classification INGENIERIA E INFRAESTRUCTURA DE LOS TRANSPORTES es_ES
dc.title Experimental Modal Analysis of transverse-cracked rails. Influence of the cracks on the real track behavior es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.12989/sem.2014.52.5.1019
dc.rights.accessRights Cerrado es_ES
dc.contributor.affiliation Universitat Politècnica de València. Instituto Universitario de Matemática Multidisciplinar - Institut Universitari de Matemàtica Multidisciplinària es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Ingeniería e Infraestructura de los Transportes - Departament d'Enginyeria i Infraestructura dels Transports es_ES
dc.description.bibliographicCitation Montalban Domingo, ML.; Baydal Giner, B.; Zamorano Martín, C.; Real Herráiz, JI. (2014). Experimental Modal Analysis of transverse-cracked rails. Influence of the cracks on the real track behavior. Structural engineering and mechanics. 52(5):1019-1032. doi:10.12989/sem.2014.52.5.1019 es_ES
dc.description.accrualMethod Senia es_ES
dc.relation.publisherversion http://dx.doi.org/10.12989/sem.2014.52.5.1019 es_ES
dc.description.upvformatpinicio 1019 es_ES
dc.description.upvformatpfin 1032 es_ES
dc.type.version info:eu repo/semantics/publishedVersion es_ES
dc.description.volume 52 es_ES
dc.description.issue 5 es_ES
dc.relation.senia 277435 es_ES


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