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dc.contributor.authorKosteski, Luis Eduardo
dc.contributor.authorIturrioz, Ignacio
dc.contributor.authorCisilino, Adrián Pablo
dc.contributor.authorBarrios D’Ambra, Ricardo José Luis
dc.contributor.authorPettarin, Valeria
dc.contributor.authorFasce, Laura
dc.contributor.authorFrontini, Patricia
dc.date.accessioned2021-08-18T13:51:54Z
dc.date.available2021-08-18T13:51:54Z
dc.date.issued2016-01
dc.identifier.citationKosteski, Luis Eduardo, et al., 2016. A lattice discrete element method to model the falling-weight impact test of PMMA specimens. International Journal of Impact Engineering. Londres: Elsevier, vol. 87, p. 120-131. ISSN: 0734-743X.es
dc.identifier.issn0734-743Xes
dc.identifier.urihttp://repositorio.unne.edu.ar/handle/123456789/28423
dc.description.abstractIt is introduced in this paper a Lattice Discrete Element Method (LDEM) for modelling the falling- weight test of polymethyl-methacrylate (PMMA) specimens. The method exploits the inherent characteristics of discrete methods to model crack initiation and propagation by simply breaking the links between their discrete components. It results in a flexible modelling tool that is implemented using Abaqus/Explicit. Numerical results are validated by comparison with experimental tests. The results are compared in terms of the time evolution of the striker force and velocity and the specimen crack patterns. The LDEM simu- lations are, in every case, of predictive nature. Material properties are neither left open for calibration nor used to adjust the numerical results. There is a good agreement between experimental and numer- ical results. It is shown that the proposed LDEM has the capability to capture all the main features of the sequence of events that occur during the experiment: the elastic specimen loading prior to the crack initiation, the nucleation and propagation of radial cracks as the test progresses, and the final failure after the rapid propagation of a circular crack that joins the radial cracks together. The effects of the variabil- ity of the material fracture toughness on the test results are studied using a series of models with random distribution of the fracture energy.es
dc.formatapplication/pdfes
dc.language.isoenges
dc.publisherElsevieres
dc.rightsopenAccesses
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/2.5/ar/es
dc.sourceInternational Journal of Impact Engineering, 2016, vol. 87, p. 120-131.es
dc.subjectImpact testes
dc.subjectImpact of polymerses
dc.subjectLattice discrete element methodses
dc.subjectAbaquses
dc.subjectExplicites
dc.titleA lattice discrete element method to model the falling-weight impact test of PMMA specimenses
dc.typeArtículoes
unne.affiliationFil: Kosteski, Luis Eduardo. Universidade Federal do Pampa. Engenharia Mecánica; Brasil.es
unne.affiliationFil: Iturrioz, Ignacio. Universidade Federal do Rio Grande do Sul; Brasil.es
unne.affiliationFil: Cisilino, Adrián Pablo. Universidad Nacional de Mar del Plata. Facultad de Ingeniería; Argentina.es
unne.affiliationFil: Barrios D’Ambra, Ricardo José Luis. Universidad Nacional del Nordeste. Facultad de Ingeniería; Argentina.es
unne.affiliationFil: Pettarin, Valeria. Universidad Nacional de Mar del Plata. Facultad de Ingeniería; Argentina.es
unne.affiliationFil: Fasce, Laura. Universidad Nacional de Mar del Plata. Facultad de Ingeniería; Argentina.es
unne.affiliationFil: Frontini, Patricia. Universidad Nacional de Mar del Plata. Facultad de Ingeniería; Argentina.es
unne.journal.paisReino Unidoes
unne.journal.ciudadLondreses


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