Failure Mechanisms of an Al 6061 Alloy Foam under Dynamic Conditions
The interesting properties of Al 6061 aluminum foams have boosted the research on the correlation between foam composition and morphology and its mechanical response under dynamic conditions. In this study, ingots of an Al 6061-T4 foam were sectioned and analyzed in order to determine their microstr...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-03-01
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| Series: | Materials |
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| Online Access: | https://www.mdpi.com/1996-1944/14/6/1349 |
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| author | Francesca Campana Edoardo Mancini Daniela Pilone Marco Sasso |
| author_facet | Francesca Campana Edoardo Mancini Daniela Pilone Marco Sasso |
| author_sort | Francesca Campana |
| collection | DOAJ |
| description | The interesting properties of Al 6061 aluminum foams have boosted the research on the correlation between foam composition and morphology and its mechanical response under dynamic conditions. In this study, ingots of an Al 6061-T4 foam were sectioned and analyzed in order to determine their microstructural and morphological characteristics, and then quasi-static and dynamic tests (10<sup>−3</sup> to 3 × 10<sup>2</sup> s<sup>−1</sup>) were carried out to determine the material mechanical behavior. Dynamic tests, carried out by using the split Hopkinson bar, highlighted that the studied foam is characterized by a very good energy absorption capability, due to its ductile behavior. Nevertheless, the conducted research showed that cell morphology and distribution affect its mechanical behavior in dynamic conditions in which localized cell collapse may result in a decreased energy absorption and efficiency of the foam. |
| first_indexed | 2024-03-10T13:21:11Z |
| format | Article |
| id | doaj.art-523b98a527614d27ae634731888406de |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-10T13:21:11Z |
| publishDate | 2021-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-523b98a527614d27ae634731888406de2023-11-21T10:02:01ZengMDPI AGMaterials1996-19442021-03-01146134910.3390/ma14061349Failure Mechanisms of an Al 6061 Alloy Foam under Dynamic ConditionsFrancesca Campana0Edoardo Mancini1Daniela Pilone2Marco Sasso3DIMA, Sapienza Università di Roma, via Eudossiana 18, 00184 Roma, ItalyDIIIE, Università degli studi dell’Aquila, Piazzale Ernesto Pontieri, Monteluco di Roio, 67100 L’Aquila, ItalyDICMA, Sapienza Università di Roma, via Eudossiana 18, 00184 Roma, ItalyDIISM, Università Politecnica delle Marche, Via Brecce Bianche, 60131 Ancona, ItalyThe interesting properties of Al 6061 aluminum foams have boosted the research on the correlation between foam composition and morphology and its mechanical response under dynamic conditions. In this study, ingots of an Al 6061-T4 foam were sectioned and analyzed in order to determine their microstructural and morphological characteristics, and then quasi-static and dynamic tests (10<sup>−3</sup> to 3 × 10<sup>2</sup> s<sup>−1</sup>) were carried out to determine the material mechanical behavior. Dynamic tests, carried out by using the split Hopkinson bar, highlighted that the studied foam is characterized by a very good energy absorption capability, due to its ductile behavior. Nevertheless, the conducted research showed that cell morphology and distribution affect its mechanical behavior in dynamic conditions in which localized cell collapse may result in a decreased energy absorption and efficiency of the foam.https://www.mdpi.com/1996-1944/14/6/1349aluminum foamsfracture behaviorfailure mechanismsHopkinson bar |
| spellingShingle | Francesca Campana Edoardo Mancini Daniela Pilone Marco Sasso Failure Mechanisms of an Al 6061 Alloy Foam under Dynamic Conditions Materials aluminum foams fracture behavior failure mechanisms Hopkinson bar |
| title | Failure Mechanisms of an Al 6061 Alloy Foam under Dynamic Conditions |
| title_full | Failure Mechanisms of an Al 6061 Alloy Foam under Dynamic Conditions |
| title_fullStr | Failure Mechanisms of an Al 6061 Alloy Foam under Dynamic Conditions |
| title_full_unstemmed | Failure Mechanisms of an Al 6061 Alloy Foam under Dynamic Conditions |
| title_short | Failure Mechanisms of an Al 6061 Alloy Foam under Dynamic Conditions |
| title_sort | failure mechanisms of an al 6061 alloy foam under dynamic conditions |
| topic | aluminum foams fracture behavior failure mechanisms Hopkinson bar |
| url | https://www.mdpi.com/1996-1944/14/6/1349 |
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