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An Experimental and Numerical Analysis of the Compression of Bimetallic Cylinders

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 comprehensivel...

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Autores principales: Camacho, Ana María, Rodríguez-Prieto, Álvaro, Herrero, José Manuel, Aragón, Ana María, Bernal, Claudio, Lorenzo-Martin, Cinta, Yanguas-Gil, Ángel, Martins, Paulo A. F.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6947522/
https://www.ncbi.nlm.nih.gov/pubmed/31817875
http://dx.doi.org/10.3390/ma12244094
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author Camacho, Ana María
Rodríguez-Prieto, Álvaro
Herrero, José Manuel
Aragón, Ana María
Bernal, Claudio
Lorenzo-Martin, Cinta
Yanguas-Gil, Ángel
Martins, Paulo A. F.
author_facet Camacho, Ana María
Rodríguez-Prieto, Álvaro
Herrero, José Manuel
Aragón, Ana María
Bernal, Claudio
Lorenzo-Martin, Cinta
Yanguas-Gil, Ángel
Martins, Paulo A. F.
author_sort Camacho, Ana María
collection PubMed
description 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.
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spelling pubmed-69475222020-01-13 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 Martins, Paulo A. F. Materials (Basel) Article 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. MDPI 2019-12-07 /pmc/articles/PMC6947522/ /pubmed/31817875 http://dx.doi.org/10.3390/ma12244094 Text en © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Camacho, Ana María
Rodríguez-Prieto, Álvaro
Herrero, José Manuel
Aragón, Ana María
Bernal, Claudio
Lorenzo-Martin, Cinta
Yanguas-Gil, Ángel
Martins, Paulo A. F.
An Experimental and Numerical Analysis of the Compression of Bimetallic Cylinders
title An Experimental and Numerical Analysis of the Compression of Bimetallic Cylinders
title_full An Experimental and Numerical Analysis of the Compression of Bimetallic Cylinders
title_fullStr An Experimental and Numerical Analysis of the Compression of Bimetallic Cylinders
title_full_unstemmed An Experimental and Numerical Analysis of the Compression of Bimetallic Cylinders
title_short An Experimental and Numerical Analysis of the Compression of Bimetallic Cylinders
title_sort experimental and numerical analysis of the compression of bimetallic cylinders
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6947522/
https://www.ncbi.nlm.nih.gov/pubmed/31817875
http://dx.doi.org/10.3390/ma12244094
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