Frequency shifts in natural vibrations in pantographic metamaterials under biaxial tests

Autor:	Battista, Antonio, Del Vescovo, Dionisio, Rizzi, Nicola Luigi, Turco, Emilio
Přispěvatelé:	Battista, Antonio, Del Vescovo, Dionisio, Rizzi, Nicola Luigi, Turco, Emilio
Jazyk:	angličtina
Rok vydání:	2017
Předmět:	Mechanical Engineering mechanical engineering Mechanics of Material mechanics of Materials
ISSN:	2199-9244
Popis:	Technische Mechanik; 37; 1; 1-17; ISSN 2199-9244 In this paper a 2D continuum model, thought as the homogenized limit of a microstructured pantographic sheet, is studied. The microstructure is characterized by two families of parallel ?bers, whose deformation measures account for bending, elongation and relative rotation of the ?bers. The deformation energy density of the homoge- nized model depends on both ?rst and second gradients of the displacement. Modal analysis is performed in order to assess the peculiarities of the dynamic behavior of higher gradient models, and in particular the difference, with respect to classical laminae, in the dependence of the eigenfrequencies on the stiffness.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2983e9cafa763a50261535d536ced5d3 https://hdl.handle.net/11590/338040 Zobrazit plný text záznamu