Multiscale DIC Applied to Pantographic Structures
In: Experimental Mechanics Experimental Mechanics, Society for Experimental Mechanics, 2021, 61, pp.431-443. ⟨10.1007/s11340-020-00636-y⟩; (2021)
Online
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Zugriff:
International audience; Background: Since the mechanical behavior of pantographic metamaterials depends upon the properties of their microstructure, accurate descriptions of unit cells are needed. Objective: The present effort is motivated by this requirement to characterize the detailed deformation of unit cells formed of two orthogonal sets of 3 beams. Methods: Their deformations in a bias extension test were measured via digital image correlation performed at different scales. Results: Thanks to the gray level residuals, the microscale results were found in better agreement with the experiment than mesoscale and macroscale analyses. Fine analyses around the hinges showed that relative displacements occurred between the two beam layers. Conclusions: Such experimental analyses supply full-field data to validate models (e.g., as a starting point in homogenization procedures) for describing the mechanical behavior of pantographic metamaterials.
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Multiscale DIC Applied to Pantographic Structures
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Autor/in / Beteiligte Person: | dell’Isola, Francesco ; Hild, François ; Misra, Anil ; Laboratoire de mécanique et technologie (LMT) ; Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Ecole Normale Supérieure Paris-Saclay (ENS Paris Saclay) ; University of Kansas [Lawrence] (KU) ; International Research Center for the Mathematics & Mechanics of Complex Systems (MEMOCS) ; Università degli Studi dell'Aquila (UNIVAQ) ; DICEAA and MEMOCS, Università dell’Aquila ; Dipartimento di Ingegneria Strutturale e Geotecnica (DISG) ; Università degli Studi di Roma 'La Sapienza' = Sapienza University [Rome] |
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Quelle: | Experimental Mechanics Experimental Mechanics, Society for Experimental Mechanics, 2021, 61, pp.431-443. ⟨10.1007/s11340-020-00636-y⟩; (2021) |
Veröffentlichung: | 2021 |
Medientyp: | unknown |
ISSN: | 0014-4851 (print) |
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