84 citations · 176 across the 16 of their papers we have counts for
16 papers
Spatiotemporal Disk Packing for Directed Growth of Complex Geometries
Yigit Hergul, Yun Seong Kim, Rohan Shah +2
Growing complex shapes requires control over both where growth begins and how it evolves in time. Here, we introduce a geometric framework for growing prescribed 2D shapes using a…
Basin-volume distributions in monodisperse particle packings -- the soul of memory
Varda F. Hagh, Zhaoning Liu, Sidney R. Nagel
Mechanically stable packings of particles in dimensions lie at the minima of an -dimensional potential energy landscape. Starting from random initial particle positions…
Local Rules for Directing the Emergence of Global Properties in Complex Structures
Andrew Slezak, Varda F. Hagh
From ants to caterpillars, many biological systems composed of simple builders have been observed to construct complex, adaptive, and functional architectures without requiring com…
Order in disordered packings with and without permutation symmetry
Varda F. Hagh, Sidney R. Nagel
A disordered solid, such as an athermal jammed packing of soft spheres, exists in a rugged potential-energy landscape in which there are a myriad of stable configurations that defy…
Deterministic Interrelation Between Elastic Moduli in Critically Elastic Materials
Hongryol Jeon, Mahdi Sadjadi, Varda F. Hagh
Critically elastic materials - those that are rigid with a single state of self-stress - can be generated from parent systems with two states of self-stress by the removal of one o…
Competition between energy and dynamics in memory formation
Varda F. Hagh, Chloe W. Lindeman, Chi Ian Ip +1
Bi-stable objects that are pushed between states by an external field are often used as a simple model to study memory formation in disordered materials. Such systems, called hyste…
Emergence of zero modes in disordered solids under periodic tiling
R. Cameron Dennis, Varda F. Hagh, Eric I. Corwin
In computational models of particle packings with periodic boundary conditions, it is assumed that the packing is attached to exact copies of itself in all possible directions. The…
rigidPy: Rigidity Analysis in Python
Varda F. Hagh, Mahdi Sadjadi
rigidPy is a Python package that provides a set of tools necessary for studying rigidity and mechanical response in spring networks. It also includes suitable modules for generatin…
Energetic rigidity II: Applications in examples of biological and underconstrained materials
Ojan Khatib Damavandi, Varda F. Hagh, Christian D. Santangelo +1
This is the second paper devoted to energetic rigidity, in which we apply our formalism to examples in two dimensions: underconstrained random regular spring networks, vertex model…
Marginal Stability Enables Memory Training in Jammed Solids
Francesco Arceri, Eric I. Corwin, Varda F. Hagh
Memory encoding by cyclic shear is a reliable process to store information in jammed solids, yet its underlying mechanism and its connection to the amorphous structure are not full…
Free-then-freeze: transient learning degrees of freedom for introducing function in materials
Varda F. Hagh, Sidney R. Nagel, Andrea J. Liu +2
The introduction of transient learning degrees of freedom into a system can lead to novel material design and training protocols that guide a system into a desired metastable state…
Realizations of Isostatic Material Frameworks
Mahdi Sadjadi, Varda F. Hagh, Mingyu Kang +6
This paper studies the set of equivalent realizations of isostatic frameworks in two dimensions, and algorithms for finding all such realizations. We show that an isostatic framewo…
Energetic rigidity I: A unifying theory of mechanical stability
Ojan Khatib Damavandi, Varda F. Hagh, Christian D. Santangelo +1
Rigidity regulates the integrity and function of many physical and biological systems. This is the first of two papers on the origin of rigidity, wherein we propose that "energetic…
Disordered auxetic networks with no re-entrant polygons
Varda F. Hagh, M. F. Thorpe
It is widely assumed that disordered auxetic structures (i.e. structures with a negative Poisson's ratio) must contain re-entrant polygons in D and re-entrant polyhedra in D.…
Jamming in Perspective
Varda F. Hagh, Eric I. Corwin, Kenneth Stephenson +1
Jamming occurs when objects like grains are packed tightly together (e.g. grain silos). It is highly cooperative and can lead to phenomena like earthquakes, traffic jams, etc. In t…
Rigidity Loss in Disordered Systems: Three Scenarios
Wouter G. Ellenbroek, Varda F. Hagh, Avishek Kumar +2
We reveal significant qualitative differences in the rigidity transition of three types of disordered network materials: randomly diluted spring networks, jammed sphere packings, a…