000112038 001__ 112038
000112038 005__ 20230519145549.0
000112038 0247_ $$2doi$$a10.1016/j.matdes.2021.109719
000112038 0248_ $$2sideral$$a127118
000112038 037__ $$aART-2021-127118
000112038 041__ $$aeng
000112038 100__ $$0(orcid)0000-0001-9972-0902$$aMedel F.$$uUniversidad de Zaragoza
000112038 245__ $$aOn the use of laser-scanning vibrometry for mechanical performance evaluation of 3D printed specimens
000112038 260__ $$c2021
000112038 5060_ $$aAccess copy available to the general public$$fUnrestricted
000112038 5203_ $$aIn this study, we explored the suitability of laser-scanning vibrometry (LSV) for evaluation of the mechanical behavior of rectangular prisms produced by Fused Filament Fabrication (FFF). Our hypothesis was that LSV would be able to discriminate the mechanical behavior of specimens fabricated with different process parameters combinations. Build orientation, raster angle, nozzle temperature, printing speed and layer thickness were the process parameters of interest. Based on a factorial design of experiment approach, 48 different process parameter combinations were taken into account and 96 polylactic acid (PLA) rectangular prisms were fabricated. The characterization of their dynamical behavior provided frequency data, making possible the computation of an equivalent elastic modulus metric. Statistical analysis of the equivalent elastic modulus dataset confirmed the significant influences of raster angle, build orientation and nozzle temperature. Moreover, multivariate regression models served to rank, not only the significant influences of individual process parameters, but also the significant quadratic and cubic interactions between them. The previous knowledge was then applied to generate an ad hoc model selecting the most important factors (linear and interactions). The predicted equivalent elastic moduli provided by our ad hoc model were used in modal analysis simulations of both 3D printed rectangular prisms and a complex part. The simulated frequencies thus obtained were generally closer to the experimental ones (=11%), as compared to modal analysis simulations based on internal geometry modelling (=33%). The use of LSV appears very promising in the characterization of the mechanical behavior and integrity of 3D printed parts. Other additive manufacturing technologies may benefit from the use of this technique and from the adoption of the presented methodology to test, simulate and optimize the properties of 3D printed products. © 2021 The Authors
000112038 536__ $$9info:eu-repo/grantAgreement/ES/DGA/T19-20R$$9info:eu-repo/grantAgreement/ES/DGA/T48-20R
000112038 540__ $$9info:eu-repo/semantics/openAccess$$aby-nc-nd$$uhttp://creativecommons.org/licenses/by-nc-nd/3.0/es/
000112038 590__ $$a9.417$$b2021
000112038 592__ $$a1.802$$b2021
000112038 594__ $$a13.2$$b2021
000112038 591__ $$aMATERIALS SCIENCE, MULTIDISCIPLINARY$$b58 / 345 = 0.168$$c2021$$dQ1$$eT1
000112038 593__ $$aMechanical Engineering$$c2021$$dQ1
000112038 593__ $$aMaterials Science (miscellaneous)$$c2021$$dQ1
000112038 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000112038 700__ $$aEsteban V.
000112038 700__ $$0(orcid)0000-0002-8411-1247$$aAbad J.$$uUniversidad de Zaragoza
000112038 7102_ $$15004$$2545$$aUniversidad de Zaragoza$$bDpto. Ingeniería Mecánica$$cÁrea Ingeniería Mecánica
000112038 773__ $$g205 (2021), 109719 [14 pp]$$tMATERIALS & DESIGN$$x0264-1275
000112038 8564_ $$s3572690$$uhttps://zaguan.unizar.es/record/112038/files/texto_completo.pdf$$yVersión publicada
000112038 8564_ $$s2261994$$uhttps://zaguan.unizar.es/record/112038/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000112038 909CO $$ooai:zaguan.unizar.es:112038$$particulos$$pdriver
000112038 951__ $$a2023-05-18-15:48:11
000112038 980__ $$aARTICLE