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dc.contributor.authorYap, Yee Lingen_US
dc.contributor.authorToh, Williamen_US
dc.contributor.authorKoneru, Rahulen_US
dc.contributor.authorLin, Kehuaen_US
dc.contributor.authorYeoh, Kirk Mingen_US
dc.contributor.authorLim, Chin Mianen_US
dc.contributor.authorLee, Jia Shingen_US
dc.contributor.authorNur Adilah Plempingen_US
dc.contributor.authorLin, Rongmingen_US
dc.contributor.authorNg, Teng Yongen_US
dc.contributor.authorChan, Ian Keenen_US
dc.contributor.authorGuang, Huanyuen_US
dc.contributor.authorChan, Brian Wai Yewen_US
dc.contributor.authorTeong, Soo Soonen_US
dc.contributor.authorZheng, Guoyingen_US
dc.identifier.citationYap, Y. L., Toh, W., Koneru, R., Lin, K., Yeoh, K. M., Lim, C. M., . . . Zheng, G. (2019). A non-destructive experimental-cum-numerical methodology for the characterization of 3D-printed materials — polycarbonate-acrylonitrile butadiene styrene (PC-ABS). Mechanics of Materials, 132, 121-133. doi:10.1016/j.mechmat.2019.03.005en_US
dc.description.abstractWith increasing prevalence of the use of 3D-printing, the structural integrity of these 3D-printed parts becomes a concern, especially if bulk properties are assumed in the design phase since 3D-printing usually results in material properties inferior to that of bulk properties. In this paper, we present an experimental-cum-numerical methodology for the characterization of 3D-printed polycarbonate-acrylonitrile butadiene styrene (PC-ABS). This paper investigates the effects of raster angle and orientations on the elastic properties of the Fused Deposition Modelling (FDM) printed PC-ABS material. The orthotropic elastic properties of PC-ABS material were determined by conducting ultrasonic testing, which is a non-destructive test method that allows us to deduce all the anisotropic elastic constants from the bulk density and the velocities of shear and longitudinal ultrasound wave propagating along different directions. Several tensile tests were also carried out to validate the ultrasonic tests, and these were generally in good agreement, with an average of 11% deviations. Next numerical verification was by comparing numerical finite element simulation results (using properties from ultrasonic testing) with experimental four-point bending test and impact hammer test, where excellent correspondence between the experimental and numerical data was observed. Further, scanning electron microscopes were utilized to analyze the fracture surface to understand the effects of the raster angles and orientations on the fracture behavior and the microstructure of the FDM printed PC-ABS.en_US
dc.relation.ispartofMechanics of Materialsen_US
dc.rights© 2019 Elsevier Ltd. All rights reserved. This paper was published in Mechanics of Materials and is made available with permission of Elsevier Ltd.en_US
dc.subjectEngineering::Mechanical engineering::Mechanics and dynamicsen_US
dc.titleA non-destructive experimental-cum-numerical methodology for the characterization of 3D-printed materials — polycarbonate-acrylonitrile butadiene styrene (PC-ABS)en_US
dc.typeJournal Articleen
dc.contributor.schoolSchool of Mechanical and Aerospace Engineeringen_US
dc.contributor.researchSingapore Centre for 3D Printingen_US
dc.description.versionAccepted versionen_US
dc.subject.keywordsUltrasonic Testingen_US
dc.subject.keywords3D-printed PC-ABSen_US
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