eprintid: 3790
rev_number: 7
eprint_status: archive
userid: 69
dir: disk0/00/00/37/90
datestamp: 2017-09-18 12:42:34
lastmod: 2017-09-18 12:42:34
status_changed: 2017-09-18 12:42:34
type: conference_item
metadata_visibility: show
creators_name: Bacigalupo, Andrea
creators_name: Lepidi, Marco
creators_id: andrea.bacigalupo@imtlucca.it
creators_id: 
title: A lumped mass beam model for the wave propagation in anti-tetrachiral periodic lattices
ispublished: pub
subjects: T1
subjects: TA
divisions: CSA
full_text_status: none
pres_type: paper
abstract: The engineered class of periodic anti-tetrachiral materials is mainly characterized by
the unusual macroscopic property of a negative Poisson’s ratio. The auxetic behavior of the material
depends on the geometric and elastic features of the microstructure. In particular, the material symmetries
of the periodic cell govern the quadratic or orthotropic symmetry of the first-order elastic
tensor (i.e. auxetic quadratic or auxetic orthotropy). Under the assumption of uniform mass density
and elastic properties, one or the other case can be realized by a square or rectangular microstructure,
respectively. A beam lattice model with lumped masses is employed to analyse the effects
of different, usually small-valued, geometric and elastic parameters of the high- and low-frequency
dispersion curves and band gaps characterizing the free wave propagation.
date: 2015
date_type: published
publisher: AIMETA
pagerange: 542-551
event_title: 22° Conference of the Italian association of theoretical and applied mechanics  AIMETA2015
event_location: Genova, Italy
event_dates: September 14-17, 2015
event_type: conference
refereed: TRUE
isbn: 978-88-97752-55-4
book_title: Prodeedings of the 22° Conference of the Italia association of theoretical and applied mechanics - AIMETA2015
official_url: http://www.aimeta2015.dicam.unibo.it/sites/www.aimeta2015.dicam.unibo.it/files/memorie_estese_Aimeta2015-3.pdf
citation:   Bacigalupo, Andrea and Lepidi, Marco  A lumped mass beam model for the wave propagation in anti-tetrachiral periodic lattices.  In: 22° Conference of the Italian association of theoretical and applied mechanics AIMETA2015, September 14-17, 2015, Genova, Italy pp. 542-551.  ISBN 978-88-97752-55-4.      (2015)