Pierre Roberjot

A multi-stable metamaterial design method (MSMDM) based on a bistable chiral structure

Pierre Roberjot, Jonathan B. Hopkins, Just L. Herder

The design of multistable metamaterials has predominantly relied on trial-and-error strategies and geometry-specific optimization, limiting systematic exploration of design spaces. Despite numerous reported architectures, unified approaches for the generation and classification of planar and spatial multistable systems remain underdeveloped. This work introduces …

nl, us (code pays fourni par la source)

A unified spatial Poisson’s ratio design method (SPRDM) for 3D Poisson’s ratio metamaterials based on a minimal chiral structure

Pierre Roberjot, Rosalinde van den Bergh, Just L. Herder

The planar and spatial base structures as input to the design method, with the naming protocol and examples of existing and novel structures. • A chiral structure is proposed as a base for all spatial Poisson’s ratio metamaterials. • Poisson’s ratio metamaterials …

nl (code pays fourni par la source)

Straight-Line Metamaterial Approximating an Ideal Shear Cell

Luuk Schattenberg, Pierre Roberjot, Just L. Herder

Abstract Mechanical metamaterials are architected structures designed to exhibit unconventional mechanical responses. Their engineered properties make them especially valuable for realizing precise motion and load-bearing functions, with broad applications in machines, robotics, and related technologies. Straight-line mechanisms, typically based on compliant or …

nl (code pays fourni par la source)

A Framework for the Design of a Magnet-Based Multistable Rotational Stage

Thijs van Noordt, Justus t’Sas, Nikai Verzijl, L. L. Wong et autres

Abstract Multistable metamaterials are architected structures capable of adopting multiple stable geometrical configurations. This unique characteristic makes them highly valuable for stiffness control, energy harvesting, and morphing technologies. As a result, multistable structures hold great potential for diverse applications across various fields. …

nl (code pays fourni par la source)

A unified Planar Poisson’s Ratio Design Method (PPRDM) for meiotic metamaterials that exhibit negative compressibility based on a minimal chiral meiotic structure

Pierre Roberjot, Just L. Herder

Meiotic metamaterials are intricately designed structures characterized by a positive Poisson’s ratio, surpassing the conventional limit of 0.5 observed in natural materials. This exceptional attribute allows them to contract or expand perpendicularly to the applied stretch or compression, respectively. Structures featuring a …

nl (code pays fourni par la source)

A unified design method for 2D auxetic metamaterials based on a minimal auxetic structure

Pierre Roberjot, Just L. Herder

Auxetic metamaterials are architected structures that possess a unique property known as a negative Poisson’s ratio. This remarkable characteristic enables them to expand or contract in a direction perpendicular to stretch or compression. Due to their exceptional attributes such as energy absorption …

nl (code pays fourni par la source)

A Unified Planar Poisson's Ratio Design Method (Pprdm) for Meiotic Metamaterials that Exhibit Negative Compressibility Based on a Minimal Chiral Meiotic Structure

Pierre Roberjot, Just L. Herder

HACS: Helical Auxetic Yarn Capacitive Strain Sensors with Sensitivity Beyond the Theoretical Limit (Adv. Mater. 10/2023)

Tyler J. Cuthbert, Brett C. Hannigan, Pierre Roberjot, Alexander V. Shokurov et autres

Capacitive Strain Sensors In article number 2209321, Tyler J. Cuthbert, Carlo Menon, and co-workers present a novel capacitive strain sensor that accesses sensitivity beyond the theoretical limit. The helical auxetic capacitive sensor (HACS) employs a two-component yarn structure allowing tuneable sensitivity and …

ch, fr, pl (code pays fourni par la source)

A Unified Design Method for 2d Auxetic Metamaterials Based on a Minimal Auxetic Structure

Pierre Roberjot, Just L. Herder

nl (code pays fourni par la source)

HACS: Helical Auxetic Yarn Capacitive Strain Sensors with Sensitivity Beyond the Theoretical Limit

Tyler J. Cuthbert, Brett C. Hannigan, Pierre Roberjot, Alexander V. Shokurov et autres

The development of flexible strain sensors over the past decade has focused on accessing high strain percentages and high sensitivity (i.e., gauge factors). Strain sensors that employ capacitance as the electrical signal to correlate to strain are typically restricted in sensitivity because …

ch, fr, pl (code pays fourni par la source)

Elementos de electricidad industrial 4º

Pierre Roberjot