213 citations · 585 across the 14 of their papers we have counts for
15 papers
Contact-mediated asymmetric delay and rate memory in snapping beam pairs
Gavin Linton, Shima Mahmoudirad, Nidhi Pashine +1
Slender structures in dense environments interact through contact, which alters how and when they become unstable. Here we show that contact makes snap-through history dependent, s…
Learning Associations in Reconfigurable Particle Packings via Local Cyclic Driving
Wenjing Guo, Vidyesh Rao Anisetti, Kairui Zhang +7
We investigate associative-memory behavior in a reconfigurable particle packing programmed by purely local cyclic driving. The system is a two-dimensional bidisperse Lennard--Jones…
Evolution of Adaptive Force Chains in Reconfigurable Granular Metamaterials
Sven Witthaus, Atoosa Parsa, Dong Wang +7
Under an externally applied load, granular packings form force chains that depend on the contact network and moduli of the grains. In this work, we investigate packings of variable…
Tuning the Size and Stiffness of Inflatable Particles
Nidhi Pashine, Dong Wang, Robert Baines +4
We describe size-varying cylindrical particles made from silicone elastomers that can serve as building blocks for robotic granular materials. The particle size variation, which is…
Universal Mechanical Polycomputation in Granular Matter
Atoosa Parsa, Sven Witthaus, Nidhi Pashine +3
Unconventional computing devices are increasingly of interest as they can operate in environments hostile to silicon-based electronics, or compute in ways that traditional electron…
Tessellated granular metamaterials with tunable elastic moduli
Nidhi Pashine, Dong Wang, Jerry Zhang +5
Most granular packings possess shear moduli () that increase with the applied external pressure, and bulk moduli () that increase or remain constant with pressure. This paper…
Designing the pressure-dependent shear modulus using tessellated granular metamaterials
Jerry Zhang, Dong Wang, Weiwei Jin +5
Jammed packings of granular materials display complex mechanical response. For example, the ensemble-averaged shear modulus increases as a power-law…
Learning to learn: Non-equilibrium design protocols for adaptable materials
Martin J. Falk, Jiayi Wu, Ayanna Matthews +5
Evolution in time-varying environments naturally leads to adaptable biological systems that can easily switch functionalities. Advances in the synthesis of environmentally-responsi…
Poisson's ratio and angle bending in spring networks
Nidhi Pashine, Daniel R. Reid, Meng Shen +2
The Poisson's ratio of a spring network system has been shown to depend not only on the geometry but also on the relative strength of angle-bending forces in comparison to the bond…
Local rules for fabricating allosteric networks
Nidhi Pashine
Mechanical properties of disordered networks can be significantly tailored by modifying a small fraction of their bonds. This procedure has been used to design and build mechanical…
Effect of aging on the non-linear elasticity and memory formation in materials
Daniel Hexner, Nidhi Pashine, Andrea J. Liu +1
Disordered solids often change their elastic response as they slowly age. Using experiments and simulations, we study how aging disordered planar networks under an applied stress a…
Ideal isotropic auxetic networks from random networks
Daniel R. Reid, Nidhi Pashine, Alec S. Bowen +2
Auxetic materials are characterized by a negative Poisson's ratio, . As the Poisson's ratio becomes negative and approaches the lower isotropic mechanical limit of $\math…
Directed aging, memory and Nature's greed
Nidhi Pashine, Daniel Hexner, Andrea J. Liu +1
Disordered materials are often out of equilibrium and evolve very slowly. This allows a memory of the imposed strains or preparation conditions to be encoded in the material. Here…
Auxetic metamaterials from disordered networks
Daniel R Reid, Nidhi Pashine, Justin M Wozniak +4
Recent theoretical work suggests that systematic pruning of disordered networks consisting of nodes connected by springs can lead to materials that exhibit a host of unusual mechan…
Designing allostery-inspired response in mechanical networks
Jason W. Rocks, Nidhi Pashine, Irmgard Bischofberger +3
Recent advances in designing meta-materials have demonstrated that global mechanical properties of disordered spring networks can be tuned by selectively modifying only a small sub…