Browsing by Author "Riera Colom, María Dolores"
Now showing items 1-20 of 57
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Aplicación del ensayo brasileño a la determinación del comportamiento a fractura de compactos pulvimetalúrgicos
(Centre de Publicacions d'Abast (CPDA - ETSEIB), 1999)
Conference report
Open Access -
Aplicación del ensayo brasileño al estudio del comportamiento a fractura de los compactos pulvimetalúrgicos
(1999-04)
Article
Restricted access - publisher's policyEl ensayo brasileño ha sido ampliamente utilizado para determinar, de forma indirecta, la resistencia a la fractura en tracción de materiales para la construcción, tales como hormigón, rocas, .... Más recientemente, su uso ... -
Application of a finite-element formulation to the cold compaction of metal powders
(1993)
Conference report
Open Access -
Comportamiento elasto-plástico de los polvos metálicos sometidos a compresión en frío
(1996)
Conference report
Restricted access - publisher's policy -
Comportamiento elastoplástico de compactos pulvimetalúrgicos
(Universitat Politècnica de Catalunya, 1999-07-20)
Doctoral thesis
Open AccessEn este trabajo se estudia el comportamiento mecánico de compactos obtenidos con tres tipos de polvos base hierro. A partir de ensayos de compresión uniaxial, con ciclos de carga y descarga, se analizan los mecanismos de ... -
Cooling rate modeling and evaluation during centrifugal atomization process
(Multidisciplinary Digital Publishing Institute (MDPI), 2023-06-07)
Article
Open AccessCentrifugal atomization is a rapid solidification technique involving fast cooling rates to produce high-quality powders. The final microstructure of the atomized particles is closely linked with the thermal history and ... -
Data generation for the numerical simulation of powder compaction
(European Powder Metallurgy, 2005)
Conference report
Open AccessNumerical simulation of industrial plastic deformation processes needs of a precise characterization of the mechanical material properties included in the particular elastoplastic model. The plasticity model of bulk metallic ... -
De Bolonia (1088) a Bolonia (1988-2010). De la enseñanza basada en el conocimiento a la enseñanza basada en las habilidades
(2008)
Conference report
Open AccessLa humanidad está viviendo un período histórico de profundas transformaciones. La sociedad avanza a un ritmo muy superior al de sus propias estructuras, y la universidad reacciona por detrás de los acontecimientos. Se ... -
Effect of a thermal annealing on the mechanical behaviour of green pm compacts
(European Powder Metallurgy, 2001)
Conference report
Open AccessCold die compaction can produce different effects on the dimensional and mechanical behaviour of green PM compacts. They can be due to different causes, such as residual stresses, microcracks and others. Residual stresses ... -
Effect of processing parameters on copper powder produced by novel hybrid atomisation technique
(2020-02-04)
Article
Open Access -
Elastic behaviour under compressive stresses states of sintered metallic parts
(European Powder Metallurgy, 2003)
Conference report
Open AccessThe mechanical response in service of a component is mainly determined by its elastic behaviour. Traditionally, metallic materials have been characterized by means of tensile tests, even in the case of sintered ones. In ... -
Elasticidad en materiales granulares
(2000)
Conference report
Restricted access - publisher's policyEn este trabajo se estudia el comportamiento elástico de compactos de polvos metálicos. Para ello, se han preparado probetas cilíndricas y se han sometido a ensayos de compresión uniaxial con ciclos de carga y descarga. ... -
Elastoplastic simulation of contacts among particles in granular materials
(European Powder Metallurgy Association, 2003)
Conference report
Open AccessThe mechanisms governing the densification of powdered materials under compaction are highly dependent on the deformation and the state of stress in the contact among particles. Therefore, a micromechanical model can be ... -
Estudio de la resistencia a fatiga térmica en moldes de inyección de aluminio utilizando aceros de alta conductividad térmica
(2013)
Conference report
Open AccessLa mayoría de los mecanismos de fallo que determinan la durabilidad de un molde de inyección de aluminio a alta presión están relacionados con las solicitaciones termo-mecánicas de la superficie. En cada ciclo, la ... -
Estudio experimental del llenado de moldes pulvimetalúrgicos
(2005-10)
Article
Open AccessEn el proceso de conformado pulvimetalúrgico, la consolidación del polvo se inicia con el llenado del molde en el que se fabricará la preforma porosa, el cuál está caracterizado por la distribución de densidades del polvo ... -
Evaluación del comportamiento a desgaste en aceros de herramienta: simulación por ordenador y verificación experimental
(2007)
Article
Open AccessEn el sector automovilístico se ha incrementado el uso de aceros de alta y muy alta resistencia para conformar piezas de carrocería. La utilización de estos nuevos aceros lleva asociada una problemática específica en la ... -
Experimental and numerical study of the die filling stage in powder metallurgy
(European Powder Metallurgy, 2005)
Conference report
Open AccessThe aim of this work is to show the potential of the Particle Finite Element Method (PFEM) in the simulation of the powder transfer stage, in powder metallurgy industrial processes. The most innovative aspects of the work ... -
Experimental study of mass flow and apparent density in powder metallurgy die filling
(European Powder Metallurgy, 2005)
Conference report
Open AccessDie filling is the first step in the process of powder compaction. The density distribution after die filling on the powder properties and the method of filling. In this work the authors study the effects of powders ... -
Flow regime analyses during the filling stage in powder metallurgy processes: experimental study and numerical modelling
(2011-01)
Article
Open AccessExperimental and numerical studies of powder flow during the die filling stage in powder metallurgy cold compaction processes are presented. An experimental setting consisting of a horizontal pneumatically activated ... -
FLSD as a good choice in sheet forming of AHSS
(Dassault Systèmes, 2011)
Conference report
Open AccessThe automotive industry has increased significantly the use of advanced high strength steels (AHSS) in many structural components, with the aim to reduce weight and also to increase safety. The high resistance of these ...
