000015461 001__ 15461
000015461 005__ 20161115100222.0
000015461 04107 $$aeng
000015461 046__ $$k2016-08-21
000015461 100__ $$aTanaka, Hiro
000015461 24500 $$aTransformation shift of periodic cellular structure by controlling internal stiffness

000015461 24630 $$n24.$$p24th International Congress of Theoretical and Applied Mechanics - Book of Papers
000015461 260__ $$bInternational Union of Theoretical and Applied Mechanics, 2016
000015461 506__ $$arestricted
000015461 520__ $$2eng$$aIn some instability phenomena as typified by Euler buckling, the pre-bifurcation deformation is infinitesimal. Engineers are used to make a design to prevent the structure from falling down because of such unstable deformation. In this study, we propose a novel bifurcation system for two-dimensional cellular structure, which shows that the pre-bifurcation deformation is not small. We previously developed the structural unit, the geometry of which exhibits eight-fold rotational symmetry. Controlling the point of loading, the system can switch between two types of auxetic transformation; the structure transforms into diamond cells or square cells. We here newly model a modified structure by inserting linear springs between periodic unit cells and demonstrate the large deformation analyses under uniform compression, which show the switching mechanism for the two different motions after the structure undergoes some extent of cell deflection. We also discuss about the analogy mechanism of a linkage structure.

000015461 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000015461 653__ $$a

000015461 7112_ $$a24th International Congress of Theoretical and Applied Mechanics$$cMontreal (CA)$$d2016-08-21 / 2016-08-26$$gICTAM2016
000015461 720__ $$aTanaka, Hiro
000015461 8560_ $$ffischerc@itam.cas.cz
000015461 8564_ $$s142403$$uhttps://invenio.itam.cas.cz/record/15461/files/TS.SM14-4.02.pdf$$yOriginal version of the author's contribution as presented on CD,  page 2802, code TS.SM14-4.02
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000015461 962__ $$r13812
000015461 980__ $$aPAPER