Poynting Effects in Pantographic Metamaterial Captured via Multiscale DVC

Patrick Auger (1) , Thomas Lavigne (1) , Benjamin Smaniotto (2) , Mario Spagnuolo (3) , Francesco Dell'Isola (3, 4) , François Hild (2)

1 ENS Paris Saclay - Ecole Normale Supérieure Paris-Saclay
2 LMT - Laboratoire de mécanique et technologie
3 MEMOCS - International Research Center for the Mathematics & Mechanics of Complex Systems
4 DICEAA - Dipartimento di Ingegneria Civile, Edile-Architettura, Ambientale

Metamaterials are often studied for their peculiar mechanical properties. However, few 4D studies were conducted on 3D printed pantographs. This study aims at analyzing an in situ torsion test in a lab tomograph. The acquired scans were used to measure displacement fields via digital volume correlation. The final goal was to analyze the deformation mechanisms of an Inconel pantograph and to rationalize potential Poynting effects.

Mots clés: Digital Volume Correlation (DVC); Metamaterials; Multiscale analyses; Torsion test; Uncertainty quantication

Domaines: Mécanique des matériaux [physics.class-ph]

Patrick Auger, Thomas Lavigne, Benjamin Smaniotto, Mario Spagnuolo, Francesco Dell'Isola, et al.. Poynting Effects in Pantographic Metamaterial Captured via Multiscale DVC. Journal of Strain Analysis for Engineering Design, 2021, 56 (7), pp.462-477. ⟨10.1177/0309324720976625⟩. ⟨hal-02974410⟩