Full metadata record
DC Field | Value | Language |
---|---|---|
dc.creator | Ruiz-de-Galarreta-Moriones, S.(Sergio) | - |
dc.creator | Doyle, R.J. (Ruben J.) | - |
dc.creator | Jeffers, J. (Jonathan) | - |
dc.creator | Ghouse, S. (Shaaz) | - |
dc.date.accessioned | 2022-04-06T08:14:30Z | - |
dc.date.available | 2022-04-06T08:14:30Z | - |
dc.date.issued | 2021 | - |
dc.identifier.citation | Ruiz de Galarreta-Moriones, S.(Sergio); Doyle, R.J. (Ruben J.); Jeffers, J. (Jonathan); et al. "Laser powder bed fusion of porous graded structures: a comparison between computational and experimental analysis". Journal of the Mechanical Behavior of Biomedical Materials. 123, 2021, | es |
dc.identifier.issn | 1751-6161 | - |
dc.identifier.uri | https://hdl.handle.net/10171/63355 | - |
dc.description.abstract | Functionally graded porous structures (FGPSs) are gaining interest in the biomedical sector, specifically for orthopaedic implants. In this study, the compressive behaviour of seven different FGPSs comprised of Face Centred Cubic (FCC) and the Octet truss unit cells (OCT) were analysed. The porosity of the structures were graded in different directions (radially, longitudinally, laterally and longitudinally & radially) by varying the strut diameters or by combining the two types of unit cells. The structures were manufactured by laser power bed fusion and compression tests were performed. Radially and laterally porous graded structures were found to outperform uniform porous structures with an increase in stiffness of 13.7% and 21.1% respectively. The experimental and finite element analysis (FEA) results were in good agreement with differences in elastic modulus of 9.4% and yield strength of 15.8%. A new FEA beam model is proposed in this study to analyse this type of structures with accurate results and the consequent reduction of computational time. The accuracy of the Kelvin-Voight model and the rule of mixtures for predicting the mechanical behaviour of different FGPSs was also investigated. The results demonstrate the adequacy of the analytical models specifically for hybrid structures and for structures with smooth diameter transitions. | es_ES |
dc.description.sponsorship | Financial support of this study was provided by the Engineering and Physical Sciences Research Council (EP/R042721/1) and the Wellcome Trust (208858/Z/17/Z). The authors gratefully acknowledge their support | es_ES |
dc.language.iso | eng | es_ES |
dc.publisher | Elsevier | es_ES |
dc.rights | info:eu-repo/semantics/openAccess | es_ES |
dc.subject | Porous structures | es_ES |
dc.subject | Functionally graded | es_ES |
dc.subject | Finite element analysis | es_ES |
dc.subject | Mechanical testing | es_ES |
dc.subject | Additive manufacturing | es_ES |
dc.title | Laser powder bed fusion of porous graded structures: a comparison between computational and experimental analysis | es_ES |
dc.type | info:eu-repo/semantics/article | es_ES |
dc.editorial.note | This is an open access article under the CC BY-NC-ND license | es_ES |
dc.identifier.doi | 10.1016/j.jmbbm.2021.104784 | - |
dadun.citation.publicationName | Journal of the Mechanical Behavior of Biomedical Materials | es_ES |
dadun.citation.volume | 123 | es_ES |
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