Investigation of The Effect of Geometry Inner Thickness on New Designed Auxetic Structure

Authors : İsmail ERDOĞAN, İhsan TOKTAS

Pages : 901-912

Doi:10.2339/politeknik.1094739

View : 311 | Download : 755

Publication Date : 2023-07-05

Article Type : Research Paper

Abstract :Poisson’s ratio is important mechanical property of materials and structure. Material and Structure showing negative Poisson’s ratios are called Auxetic. Properties of the Auxetic structures are very important to design the new structure, especially mechanical properties of the Auxetic materials that have structurally and functionally mission. Many researchers made experimental and theoretical works apropos this matter. In this study, the newly designed Auxetic lattice structure Poisson’s ratio was checked over via exploiting finite element analysis. 14 different lattice structures with respect to inner lattice thickness configurations are investigated. All examined structures have a negative Poisson’s ratio. Inner lattice thickness is increased; negative Poisson’s ratio values are decreased insert ignore into journalissuearticles values(closes to -1.); in these examined lattice structures. 4x2 lattice orientation has lowest Poisson’s ratio than 4x4 Lattice structure Poisson’s ratio, 4x2 is more Auxetic. 4.9 mm inner lattice thickness and 4x2 lattice matrix examined example has lowest Poisson’s ratio that is -0,55. Beneficial to indicate the purview of the structure on the applied force, the stiffness values and the stiffness/mass values were examined. Their energy dissipation capabilities were analyzed.
Keywords : Negatif Poisson`s Oranı, Kafes Yapı, Yeni yapı

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