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Copyright of Actas de Diseño is the property of Facultad de Diseno y Comunicacion, Fundacion Universidad de Palermo and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of DYNA - Ingeniería e Industria is the property of Publicaciones Dyna SL and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Currently, the study and applications of morphing structures with cellular configurations and negative effective Poisson's ratio are of interest for the automotive and aerospace field, as also applications in optical, biological, microelectronic, structural and thermo-mechanical components. These structures have light weight, large shear stiffness and they resist large deformations in the elastic range of the constitutive material, if compared to a solid structure with the same material. This paper presents a numerical study of in-plane static behavior of hexachiral structure with negative effective Poisson's ratio, using the finite element method. The results obtained suggest a better control of the parameters of the structures because the geometrical restrictions of real applications are taken into account, making the design more flexible and reliable by the type of desired [ABSTRACT FROM AUTHOR]

This paper presents a structural damage detection system. Variations in elasticity module are used as a damage condition in a structural finite element model. This deviation alters vibration natural frequencies and shape modes; which is the fault indicator in this proposal. Noise and incomplete data are used to emulate real conditions in a beam and truss in different fault scenarios. Simulations show satisfactory performance in all cases studied. Therefore, this system can be used as suitable structural damage detection system. [ABSTRACT FROM AUTHOR]