Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/89358
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dc.contributor.authorNagalingam, Arun Prasanthen
dc.contributor.authorYap, Yee Lingen
dc.contributor.authorSing, Swee Leongen
dc.contributor.authorYeong, Wai Yeeen
dc.contributor.authorWei, Junen
dc.contributor.authorDikshit, Vishweshen
dc.date.accessioned2018-05-24T03:36:14Zen
dc.date.accessioned2019-12-06T17:23:45Z-
dc.date.available2018-05-24T03:36:14Zen
dc.date.available2019-12-06T17:23:45Z-
dc.date.issued2017en
dc.identifier.citationDikshit, V., Nagalingam, A. P., Yap, Y. L., Sing, S. L., Yeong, W. Y., & Wei, J. (2017). Investigation of Quasi-Static Indentation Response of Inkjet Printed Sandwich Structures under Various Indenter Geometries. Materials, 10(3), 290-.en
dc.identifier.issn1996-1944en
dc.identifier.urihttps://hdl.handle.net/10356/89358-
dc.description.abstractThe objective of this investigation was to determine the quasi-static indentation response and failure mode in three-dimensional (3D) printed trapezoidal core structures, and to characterize the energy absorbed by the structures. In this work, the trapezoidal sandwich structure was designed in the following two ways. Firstly, the trapezoidal core along with its facesheet was 3D printed as a single element comprising a single material for both core and facesheet (type A); Secondly, the trapezoidal core along with facesheet was 3D printed, but with variation in facesheet materials (type B). Quasi-static indentation was carried out using three different indenters, namely standard hemispherical, conical, and flat indenters. Acoustic emission (AE) technique was used to capture brittle cracking in the specimens during indentation. The major failure modes were found to be brittle failure and quasi-brittle fractures. The measured indentation energy was at a maximum when using a conical indenter at 9.40 J and 9.66 J and was at a minimum when using a hemispherical indenter at 6.87 J and 8.82 J for type A and type B series specimens respectively. The observed maximum indenter displacements at failure were the effect of material variations and composite configurations in the facesheet.en
dc.description.sponsorshipASTAR (Agency for Sci., Tech. and Research, S’pore)en
dc.format.extent18 p.en
dc.language.isoenen
dc.relation.ispartofseriesMaterialsen
dc.rights© 2017 by The Author(s). 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/).en
dc.subjectAdditive Manufacturingen
dc.subjectThree-dimensional (3D) Printingen
dc.titleInvestigation of Quasi-Static Indentation Response of Inkjet Printed Sandwich Structures under Various Indenter Geometriesen
dc.typeJournal Articleen
dc.contributor.schoolSchool of Mechanical and Aerospace Engineeringen
dc.contributor.organizationA*STAR SIMTechen
dc.contributor.researchSingapore Centre for 3D Printingen
dc.identifier.doi10.3390/ma10030290en
dc.description.versionPublished versionen
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item.grantfulltextopen-
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