An Experimental and Numerical Analysis of the Compression of Bimetallic Cylinders

Camacho, Ana María, Rodríguez-Prieto, Álvaro, Herrero, José Manuel, Aragón, Ana María, Bernal, Claudio, Lorenzo-Martin, Cinta, Yanguas-Gil, Ángel y Martins, Paulo A. F. . (2019) An Experimental and Numerical Analysis of the Compression of Bimetallic Cylinders. Materials

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Título An Experimental and Numerical Analysis of the Compression of Bimetallic Cylinders
Autor(es) Camacho, Ana María
Rodríguez-Prieto, Álvaro
Herrero, José Manuel
Aragón, Ana María
Bernal, Claudio
Lorenzo-Martin, Cinta
Yanguas-Gil, Ángel
Martins, Paulo A. F.
Materia(s) Ingeniería Mecánica
Abstract This paper investigates the upsetting of bimetallic cylinders with an aluminum alloy center and a brass ring. The influence of the center-ring shape factor and type of assembly fit (interference and clearance), and the effect of friction on the compression force and ductile damage are comprehensively analyzed by means of a combined numerical-experimental approach. Results showed that the higher the shape factor, the lower the forces required, whereas the effect of friction is especially important for cylinders with the lowest shape factors. The type of assembly fit does not influence the compression force. The accumulated ductile damage in the compression of bimetallic cylinders is higher than in single-material cylinders, and the higher the shape factor, the lower the damage for the same amount of stroke. The highest values of damaged were found to occur at the middle plane, and typically in the ring. Results also showed that an interference fit was more favorable for preventing fracture of the ring than a clearance fit. Microstructural analysis by scanning electron microscopy revealed a good agreement with the finite element predicted distribution of ductile damage.
Palabras clave metal forming
bi-metallic
cylinders
compression
finite elements
experimentation
microscopy
Editor(es) MDPI
Fecha 2019-12-07
Formato application/pdf
Identificador bibliuned:DptoICyF-ETSI-Articulos-Amcamacho-0004
http://e-spacio.uned.es/fez/view/bibliuned:DptoICyF-ETSI-Articulos-Amcamacho-0004
DOI - identifier https://doi.org/10.3390/ma12244094
ISSN - identifier 1996-1944
Nombre de la revista Materials
Número de Volumen 12
Número de Issue 24
Publicado en la Revista Materials
Idioma eng
Versión de la publicación publishedVersion
Tipo de recurso Article
Derechos de acceso y licencia http://creativecommons.org/licenses/by/4.0
info:eu-repo/semantics/openAccess
Tipo de acceso Acceso abierto
Notas adicionales La versión registrada de este artículo, publicado por primera vez en Applied Sciences (2019) 14-24, está disponible en línea en el sitio web de la editorial: MDPI https://doi.org/10.3390/ma12244094
Notas adicionales The registered version of this article, first published in Applied Sciences (2019) 14-24, is available online at the publisher's website: MDPI https://doi.org/10.3390/ma12244094

 
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