Publicação
Mechanical behavior of honeycomb lattices manufactured by investment casting for scaffolding applications
| Resumo: | Lightweight metallic lattices in the form of honeycombs are long known to exhibit a good mechanical strength/weight relation, given their geometry and relative density, in comparison with bulk materials. Due to the current developments in additive manufacturing techniques, the production of honeycombs by investment casting is now easier and may be a competitive route when compared to welding and gluing of sheet metal. This study explores the importance of the manufacturing design when producing honeycombs by investment casting. It is shown by numerical simulation and experimental procedures that mold filling in directions where horizontal ribs are present may induce defects such as interdendritic porosities. These defects have a relevant role in the elastic domain of the lattices, decreasing the apparent Young's modulus and the plastic collapse stress. In terms of energy absorption, it is shown that these porosities have no significant effect due to the fragile fracture of both casting directions. |
|---|---|
| Autores principais: | Puga, Hélder |
| Outros Autores: | Carneiro, V.; Correira, P.; Vieira, V.; Barbosa, J.; Meireles, José F. |
| Assunto: | Materials processing Metallic materials Materials design Honeycombs Investment casting |
| Ano: | 2017 |
| País: | Portugal |
| Tipo de documento: | artigo |
| Tipo de acesso: | acesso restrito |
| Instituição associada: | Universidade do Minho |
| Idioma: | inglês |
| Origem: | RepositóriUM - Universidade do Minho |
| _version_ | 1866877485807828992 |
|---|---|
| author | Puga, Hélder |
| author2 | Carneiro, V. Correira, P. Vieira, V. Barbosa, J. Meireles, José F. |
| author2_role | author author author author author |
| author_facet | Puga, Hélder Carneiro, V. Correira, P. Vieira, V. Barbosa, J. Meireles, José F. |
| author_role | author |
| contributor_name_str_mv | Universidade do Minho |
| country_str | PT |
| creators_json_txt | [{\"Person.name\":\"Puga, Hélder\"},{\"Person.name\":\"Carneiro, V.\"},{\"Person.name\":\"Correira, P.\"},{\"Person.name\":\"Vieira, V.\"},{\"Person.name\":\"Barbosa, J.\"},{\"Person.name\":\"Meireles, José F.\"}] |
| datacite.contributors.contributor.contributorName.fl_str_mv | Universidade do Minho |
| datacite.creators.creator.creatorName.fl_str_mv | Puga, Hélder Carneiro, V. Correira, P. Vieira, V. Barbosa, J. Meireles, José F. |
| datacite.date.Accepted.fl_str_mv | 2017-01-01T00:00:00Z |
| datacite.rights.fl_str_mv | http://purl.org/coar/access_right/c_16ec |
| datacite.subjects.subject.fl_str_mv | Materials processing Metallic materials Materials design Honeycombs Investment casting |
| datacite.titles.title.fl_str_mv | Mechanical behavior of honeycomb lattices manufactured by investment casting for scaffolding applications |
| dc.contributor.none.fl_str_mv | Universidade do Minho |
| dc.creator.none.fl_str_mv | Puga, Hélder Carneiro, V. Correira, P. Vieira, V. Barbosa, J. Meireles, José F. |
| dc.date.Accepted.fl_str_mv | 2017-01-01T00:00:00Z |
| dc.format.none.fl_str_mv | application/pdf |
| dc.identifier.none.fl_str_mv | https://hdl.handle.net/1822/52796 |
| dc.language.none.fl_str_mv | eng |
| dc.publisher.none.fl_str_mv | SAGE Publications |
| dc.rights.none.fl_str_mv | http://purl.org/coar/access_right/c_16ec |
| dc.subject.none.fl_str_mv | Materials processing Metallic materials Materials design Honeycombs Investment casting |
| dc.title.fl_str_mv | Mechanical behavior of honeycomb lattices manufactured by investment casting for scaffolding applications |
| dc.type.none.fl_str_mv | http://purl.org/coar/resource_type/c_6501 |
| description | Lightweight metallic lattices in the form of honeycombs are long known to exhibit a good mechanical strength/weight relation, given their geometry and relative density, in comparison with bulk materials. Due to the current developments in additive manufacturing techniques, the production of honeycombs by investment casting is now easier and may be a competitive route when compared to welding and gluing of sheet metal. This study explores the importance of the manufacturing design when producing honeycombs by investment casting. It is shown by numerical simulation and experimental procedures that mold filling in directions where horizontal ribs are present may induce defects such as interdendritic porosities. These defects have a relevant role in the elastic domain of the lattices, decreasing the apparent Young's modulus and the plastic collapse stress. In terms of energy absorption, it is shown that these porosities have no significant effect due to the fragile fracture of both casting directions. |
| dirty | 0 |
| eu_rights_str_mv | restrictedAccess |
| format | article |
| fulltext.url.fl_str_mv | https://prod-dspace.uminho.pt/bitstreams/17056c17-dc69-44c3-a4c2-c71e49d9a8bb/download |
| id | rum_7d92a3e5243d6040ecf5bcff2a731feb |
| identifier.url.fl_str_mv | https://hdl.handle.net/1822/52796 |
| instacron_str | repositorium |
| institution | Universidade do Minho |
| instname_str | Universidade do Minho |
| language | eng |
| network_acronym_str | rum |
| network_name_str | RepositóriUM - Universidade do Minho |
| oai_identifier_str | oai:repositorium.uminho.pt:1822/52796 |
| organization_str_mv | urn:organizationAcronym:repositorium |
| person_str_mv | Puga, Hélder Carneiro, V. Correira, P. Vieira, V. Barbosa, J. Meireles, José F. |
| publishDate | 2017 |
| publisher.none.fl_str_mv | SAGE Publications |
| reponame_str | RepositóriUM - Universidade do Minho |
| repository_id_str | urn:repositoryAcronym:rum |
| service_str_mv | urn:repositoryAcronym:rum |
| spelling | engSAGE PublicationsporLightweight metallic lattices in the form of honeycombs are long known to exhibit a good mechanical strength/weight relation, given their geometry and relative density, in comparison with bulk materials. Due to the current developments in additive manufacturing techniques, the production of honeycombs by investment casting is now easier and may be a competitive route when compared to welding and gluing of sheet metal. This study explores the importance of the manufacturing design when producing honeycombs by investment casting. It is shown by numerical simulation and experimental procedures that mold filling in directions where horizontal ribs are present may induce defects such as interdendritic porosities. These defects have a relevant role in the elastic domain of the lattices, decreasing the apparent Young's modulus and the plastic collapse stress. In terms of energy absorption, it is shown that these porosities have no significant effect due to the fragile fracture of both casting directions.application/pdfporMechanical behavior of honeycomb lattices manufactured by investment casting for scaffolding applicationsPuga, HélderCarneiro, V.Correira, P.Vieira, V.Barbosa, J.Meireles, José F.HostingInstitutionOrganizationalUniversidade do Minhoe-mailmailto:repositorium@usdb.uminho.ptrepositorium@usdb.uminho.ptISSNIsPartOf1464-4207DOIIsPartOf10.1177/146442071666541420172018-03-18T02:18:45Z2017-01-01T00:00:00ZHandlehttps://hdl.handle.net/1822/52796http://purl.org/coar/access_right/c_16ecrestricted accessMaterials processingMetallic materialsMaterials designHoneycombsInvestment casting749075 bytesliteraturehttp://purl.org/coar/resource_type/c_6501journal articlehttp://purl.org/coar/access_right/c_16ecapplication/pdffulltexthttps://prod-dspace.uminho.pt/bitstreams/17056c17-dc69-44c3-a4c2-c71e49d9a8bb/download |
| spellingShingle | Mechanical behavior of honeycomb lattices manufactured by investment casting for scaffolding applications Puga, Hélder Materials processing Metallic materials Materials design Honeycombs Investment casting |
| status | SINGLETON |
| subject.fl_str_mv | Materials processing Metallic materials Materials design Honeycombs Investment casting |
| title | Mechanical behavior of honeycomb lattices manufactured by investment casting for scaffolding applications |
| title_full | Mechanical behavior of honeycomb lattices manufactured by investment casting for scaffolding applications |
| title_fullStr | Mechanical behavior of honeycomb lattices manufactured by investment casting for scaffolding applications |
| title_full_unstemmed | Mechanical behavior of honeycomb lattices manufactured by investment casting for scaffolding applications |
| title_short | Mechanical behavior of honeycomb lattices manufactured by investment casting for scaffolding applications |
| title_sort | Mechanical behavior of honeycomb lattices manufactured by investment casting for scaffolding applications |
| topic | Materials processing Metallic materials Materials design Honeycombs Investment casting |
| topic_facet | Materials processing Metallic materials Materials design Honeycombs Investment casting |
| url | https://hdl.handle.net/1822/52796 |
| visible | 1 |