{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,23]],"date-time":"2026-03-23T22:15:07Z","timestamp":1774304107628,"version":"3.50.1"},"reference-count":64,"publisher":"MDPI AG","issue":"9","license":[{"start":{"date-parts":[[2019,5,1]],"date-time":"2019-05-01T00:00:00Z","timestamp":1556668800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Materials"],"abstract":"<jats:p>Samples having nominal compositions of AlSi12 and Al6082-T4 were prepared using a lost wax casting process, with nominal relative densities of 20%, 40%, and 60%, as well as arrangements of a uniform cell structure (US) or a dual-size cell (DS). For comparison, samples of aluminium foam-filled tubes having the same nominal composition were also prepared with the same technique, with nominal relative densities of 20% and similar arrangements (US and DS). Impact tests at different velocities were performed using a split Hopkinson pressure bar (SHPB). It is possible to conclude that Al6082-T4 foams have better performance, in both configurations, than the AlSi12 ones. Considering a uniform cell structure and a density of 20%, the absorbed energy by the Al6082-T4 foams was around 25% higher than the value observed for the AlSi12 ones. In terms of arrangement, the US structure presents absorbed energy around 57% lower than the DS ones, while the AlSi12 foams with a relative density of 20% were compared. Finally, the absorbed energy growths from 2.8 \u00d7 105 to 5.2 \u00d7 105 J\/m3, when the density increased from 20% to 60%. However, when these foams were involved with a tube, the performances increased substantially.<\/jats:p>","DOI":"10.3390\/ma12091428","type":"journal-article","created":{"date-parts":[[2019,5,2]],"date-time":"2019-05-02T03:15:22Z","timestamp":1556766922000},"page":"1428","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":15,"title":["Mechanical Characterization of Different Aluminium Foams at High Strain Rates"],"prefix":"10.3390","volume":"12","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-5237-0773","authenticated-orcid":false,"given":"Ana M.","family":"Amaro","sequence":"first","affiliation":[{"name":"CEMMPRE, Department of Mechanical Engineering, University of Coimbra, 3030-194 Coimbra, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3030-0146","authenticated-orcid":false,"given":"Maria A.","family":"Neto","sequence":"additional","affiliation":[{"name":"CEMMPRE, Department of Mechanical Engineering, University of Coimbra, 3030-194 Coimbra, Portugal"}]},{"given":"Jos\u00e9 S.","family":"Cirne","sequence":"additional","affiliation":[{"name":"Department of Mechanical Engineering, University of Coimbra, 3030-194 Coimbra, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5203-3670","authenticated-orcid":false,"given":"Paulo N.B.","family":"Reis","sequence":"additional","affiliation":[{"name":"C-MAST, Department of Electromechanical Engineering, University of Beira Interior, Cal\u00e7ada Fonte do Lameiro, 6201-100 Covilh\u00e3, Portugal"}]}],"member":"1968","published-online":{"date-parts":[[2019,5,1]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"051012","DOI":"10.1115\/1.4030894","article-title":"The Effect of Fiber Orientation on the Formability and Failure Behavior of a Woven Self-Reinforced Composite","volume":"137","author":"Zanjani","year":"2015","journal-title":"J. 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