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31 papers · 1 filter
Strain compatibility and gradient elasticity in morphing origami metamaterials
Hussein Nassar, Arthur Lebée, Emily Werner
The principles of origami design have proven useful in a number of technological applications. Origami tessellations in particular constitute a class of morphing metamaterials with…
Tuning local microstructure of colloidal gels by ultrasound-activated deformable inclusions
Brice Saint-Michel, George Petekidis, Valeria Garbin
Colloidal gels possess a memory of previous shear events, both steady and oscillatory. This memory, embedded in the microstructure, affects the mechanical response of the gel, and…
Collapse and cavitation during drying of water-saturated PDMS sponges with closed porosity
Phu Tuan Anh Nguyen, Matthieu Vandamme, Artem Kovalenko
In this paper, we study the drying of water-saturated porous polydimethylsiloxane (PDMS) elastomers with closed porosity in which the evaporation of water is possible only via the…
Frictional Granular Matter: Protocol Dependence of Mechanical Properties
Anaël Lemaître, Chandana Mondal, Itamar Procaccia +3
Theoretical treatments of frictional granular matter often assume that it is legitimate to invoke classical elastic theory to describe its coarse-grained mechanical properties. Her…
Stress Correlations in Frictional Granular Media
Anael Lemaitre, Chandana Mondal, Itamar Procaccia +1
This paper investigates whether in frictional granular packings, like in Hamiltonian amorphous elastic solids, the stress autocorrelation matrix presents long range anisotropic con…
Effective toughness of heterogeneous materials with rate-dependent fracture energy
Gabriele Albertini, Mathias Lebihain, François Hild +2
We investigate dynamic fracture of heterogeneous materials experimentally by measuring displacement fields as a rupture propagates through a periodic array of obstacles of controll…