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dc.contributor.authorHuerta, Antonio
dc.contributor.authorCasadei, F.
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Matemàtica Aplicada III
dc.identifier.citationHuerta, A.; Casadei, F. New ALE applications in non-linear fast-transient solid dynamics. "Engineering computations", Agost 1994, vol. 11, núm. 4, p. 317-345.
dc.description.abstractThe arbitrary Lagrangian—Eulerian (ALE) formulation, which is already well established in the hydrodynamics and fluid-structure interaction fields, is extended to materials with memory, namely, non- linear path-dependent materials. Previous attempts to treat non- linear solid mechanics with the ALE description have, in common, the implicit interpolation technique employed. Obviously, this implies a numerical burden which may be uneconomical and may induce to give up this formulation, particularly in fast-transient dynamics where explicit algorithms are usually employed. Here, several applications are presented to show that if adequate stress updating techniques are implemented, the ALE formulation could be much more competitive than classical Lagrangian computations when large deformations are present. Moreover, if the ALE technique is interpreted as a simple interpolation enrichment, adequate—in opposition to distorted or locally coarse—meshes are employed. Notice also that impossible computations (or at least very involved numerically) with a Lagrangian code are easily implementable in an ALE analysis. Finally, it is important to observe that the numerical examples shown range from a purely academic test to real engineering simulations. They show the effective applicability of this formulation to non-linear solid mechanics and, in particular, to impact, coining or forming analysis.
dc.format.extent29 p.
dc.subjectÀrees temàtiques de la UPC::Matemàtiques i estadística::Anàlisi numèrica::Mètodes en elements finits
dc.subjectÀrees temàtiques de la UPC::Física::Física de l'estat sòlid
dc.subject.lcshNonlinear mechanics--Mathematical models
dc.subject.otherArbitrary Lagrangian—Eulerian formulation
dc.subject.otherFinite elements
dc.subject.otherLarge boundary motion
dc.subject.otherNon-linear continuum mechanics
dc.subject.otherTime integration schemes
dc.titleNew ALE applications in non-linear fast-transient solid dynamics
dc.subject.lemacMecànica no lineal
dc.subject.lemacElements finits, Mètode dels
dc.contributor.groupUniversitat Politècnica de Catalunya. LACÀN - Mètodes Numèrics en Ciències Aplicades i Enginyeria
dc.description.peerreviewedPeer Reviewed
dc.rights.accessOpen Access
dc.description.versionPostprint (author’s final draft)
upcommons.citation.authorHuerta, A.; Casadei, F.
upcommons.citation.publicationNameEngineering computations

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