Double-Negative Mechanical Metamaterials Displaying Simultaneous Negative Stiffness and Negative Poisson's Ratio Properties.

Hewage, Trishan A M; Alderson, Kim L; Alderson, Andrew; Scarpa, Fabrizio

Hewage, Trishan A M; Alderson, Kim L; Alderson, Andrew; Scarpa, Fabrizio.

Afiliación

Hewage TA; Materials and Engineering Research Institute, Faculty of Arts, Computing, Engineering and Sciences, Sheffield Hallam University, Howard Street, Sheffield, S1 1WB, UK.
Alderson KL; 72 Phillips Lane, Formby, Liverpool, L37 4BQ, UK.
Alderson A; Materials and Engineering Research Institute, Faculty of Arts, Computing, Engineering and Sciences, Sheffield Hallam University, Howard Street, Sheffield, S1 1WB, UK.
Scarpa F; Advanced Composites Centre for Innovation and Science, University of Bristol, University Walk, Bristol, BS8 1TR, UK.

Adv Mater ; 28(46): 10323-10332, 2016 Dec.

Article en En | MEDLINE | ID: mdl-27781310

ABSTRACT

ABSTRACT

A scalable mechanical metamaterial simultaneously displaying negative stiffness and negative Poisson's ratio responses is presented. Interlocking hexagonal subunit assemblies containing 3 alternative embedded negative stiffness (NS) element types display Poisson's ratio values of -1 and NS values over two orders of magnitude (-1.4 N mm-1 to -160 N mm-1 ), in good agreement with model predictions.

Palabras clave

auxetic; mechanical metamaterials; mechanical properties; negative Poisson's ratio; negative stiffness

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Texto completo: 1 Bases de datos: MEDLINE Tipo de estudio: Prognostic_studies Idioma: En Revista: Adv Mater Asunto de la revista: BIOFISICA / QUIMICA Año: 2016 Tipo del documento: Article País de afiliación: Reino Unido

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