A novel layered topology of auxetic materials based on the tetrachiral honeycomb microstructure

  title={A novel layered topology of auxetic materials based on the tetrachiral honeycomb microstructure},
  author={Ferdinando Auricchio and Andrea Bacigalupo and Luigi Gambarotta and Marco Lepidi and Simone Morganti and Francesca Vadal{\`a}},
  journal={Materials \& Design},

Asymmetric chiral and antichiral mechanical metamaterials with tunable Poisson’s ratio

Mechanical metamaterials with zero or negative Poisson’s ratio were subject to increasing research interest over the last few years. Their energy absorption capabilities make them suitable for impact

On the application of additive manufacturing methods for auxetic structures: a review

In this study, a detailed discussion of the various AM techniques used in the fabrication of auxetic structures is presented to provide an in-depth understanding of the current level of research and gauge the vitality of such manufacturing as a production method.

Auxetic Metamaterials for Biomedical Devices: Current Situation, Main Challenges, and Research Trends

Auxetic metamaterials are characterized by a negative Poisson ratio (NPR) and display an unexpected property of lateral expansion when stretched and densification when compressed. Auxetic properties

Modeling and Analysis of Structures with Negative Poisson's Ratio

Auxetic structures are the structures with negative poisons ratio and display the peculiar behaviour of lateral expansion when they are stretched which is different from conventional structures. They

Ceramics with the signature of wood: a mechanical insight

Tunable hyperbolic out-of-plane deformation of 3D-printed auxetic PLA shape memory arrays

Auxetic metamaterials attract wide attention due to their unusual mechanical behaviours. This work explores the tunability of the bidirectionally hyperbolic deformation of thin plates under uniaxial

Novel Design and Comparison of Structural and Modal Analyses of Auxetic Geometry versus Honeycomb Geometry

Abstract Auxetic structures are popular, since they have many applications in defense, textile and sport industries. The advantages of providing comfort and protection to people for the impact energy

Chiral Cosserat model for architected materials constructed by homogenization

A homogenization methodology for the construction of effective Cosserat substitution media for heterogeneous materials is proposed, combining a variational principle in linear elasticity with the



Homogenization of periodic hexa- and tetrachiral cellular solids

Design and strengthening mechanisms in hierarchical architected materials processed using additive manufacturing

Three-dimensional printing of piezoelectric materials with designed anisotropy and directional response

This strategy may be applied to create the next generation of intelligent infrastructure, able to perform a variety of structural and functional tasks, including simultaneous impact absorption and monitoring, three-dimensional pressure mapping and directionality detection.

Multi-material Additive Manufacturing of Metamaterials with Giant, Tailorable Negative Poisson’s Ratios

Simultaneous tuning of Poisson’s ratio and moduli within the 3D multi-materials could open up a broad array of material by design applications ranging from flexible armor, artificial muscles, to actuators and bio-mimetic materials.

Novel 3D‐Printed Hybrid Auxetic Mechanical Metamaterial with Chirality‐Induced Sequential Cell Opening Mechanisms

New hybrid auxetic chiral mechanical metamaterial designed and fabricated via multi‐material 3D printing can be used to develop new multi‐functional smart composites, sensors and/or actuators which are responsive to external load and/ or environmental conditions for applications in drug delivery and color changing for camouflage.

Wave Propagation in Auxetic Tetrachiral Honeycombs

This paper describes a numerical and experimental investigation on the flexural wave propagation properties of a novel class of negative Poisson's ratio honeycombs with tetrachiral topology.