Zobrazeno 1 - 10
of 79
pro vyhledávání: '"Hexner, Daniel"'
Autor:
Berneman, Marc, Hexner, Daniel
Elastic structures can be designed to exhibit precise, complex, and exotic functions. While recent work has focused on the quasistatic limit governed by force balance, the mechanics at a finite driving rate are governed by Newton's equations. The goa
Externí odkaz:
http://arxiv.org/abs/2409.05060
We study networks of coupled bistable elastic elements, recently proposed as a model for crumpled thin sheets. The networks are poised on the verge of a localized instability, and the model allows unique access to both local and global properties ass
Externí odkaz:
http://arxiv.org/abs/2408.08030
Autor:
Bhaumik, Himangsu, Hexner, Daniel
Training materials through periodic drive allows to endow materials and structures with complex elastic functions. As a result of the driving, the system explores the high dimensional space of structures, ultimately converging to a structure with the
Externí odkaz:
http://arxiv.org/abs/2308.05050
Autor:
Hexner, Daniel
We introduce a training rule that enables a network composed of springs and dashpots to learn precise stress patterns. Our goal is to control the tensions on a fraction of "target" bonds, which are chosen randomly. The system is trained by applying s
Externí odkaz:
http://arxiv.org/abs/2211.06893
Autor:
Bhaumik, Himangsu, Hexner, Daniel
Material training is a method to endow materials with specific responses through external driving. We study the complexity of attainable responses, as expressed in the number of sites that are simultaneously controlled. With increased complexity, con
Externí odkaz:
http://arxiv.org/abs/2203.03468
Publikováno v:
Proceedings of the National Academy of Sciences 119(28), p.e2200028119 (2022)
Crumpling an ordinary thin sheet transforms it into a structure with unusual mechanical behaviors, such as enhanced rigidity, emission of crackling noise, slow relaxations, and memory retention. A central challenge in explaining these behaviours lies
Externí odkaz:
http://arxiv.org/abs/2109.05212
Traffic jams are an everyday hindrance to transport, and typically arise when many vehicles have the same or a similar destination. We show, however, that even when uniformly distributed in space and uncorrelated, targets have a crucial effect on tra
Externí odkaz:
http://arxiv.org/abs/2108.02131
Autor:
Hexner, Daniel
Elastic metamaterials are often designed for a single permanent function. We explore the possibility of altering a material's function repeatedly through a self-organization, "training" process, controlled by applied strains. We show that the elastic
Externí odkaz:
http://arxiv.org/abs/2103.08235
Autor:
Hexner, Daniel
The elastic behavior of materials operating in the linear regime is constrained, by definition, to operations that are linear in the imposed deformation. Though the nonlinear regime holds promise for new functionality, the design in this regime is ch
Externí odkaz:
http://arxiv.org/abs/2012.07036
Publikováno v:
Phys. Rev. X 11, 021045 (2021)
Materials and machines are often designed with particular goals in mind, so that they exhibit desired responses to given forces or constraints. Here we explore an alternative approach, namely physical coupled learning. In this paradigm, the system is
Externí odkaz:
http://arxiv.org/abs/2011.03861