Análisis por elementos finitos de la respuesta de estructuras auxeticas hexaquirales y re-entrantes con coeficiente de Poisson Negativo Bajo Carga Uniaxial en el plano Xy

Abstract

Different types of deformable structures with negative coefficient of Poisson, called auxetic structures, have been presented in recent years as an interesting alternative for the industrial, automotive and aerospace sectors as well as for the manufacture of structural, optical, acoustic components, bio-mechanical and thermomechanical. These structures are characterized by high shear, allowing considerable deformation and a low relative density. In this study a computational analysis is performed by the finite element method in the application Ansys Workbench, the elastic behavior of auxetic structures Hexaquirales and Re-entrant with negative coefficient of Poisson in the plane under uniaxial load, by varying the geometry of each structure is to establish the best relationship between topology and deformation for each model, as well as a comparative framework in the responses of the two types of structures. The results show that the mechanical behavior of each structure depends largely on the geometric shape and the type of structure that is. Thus, design parameters using models for future applications auxetic considering its geometric constraints and performance are offered.