| Investigating The Mechanical Properties of Strut-Based Lattice Structures Using Homogenization Method |
| کد مقاله : 1053-ITME |
| نویسندگان |
|
امیرحسین یاراحمدی1، گلبرگ نیک آیین1، محمدحسین صادقی *2 1دانشگاه تربیت مدرس 2هیات علمی |
| چکیده مقاله |
| Today, lattice structures are widely used in various fields of engineering. Through the manipulation of their geometric parameters, these structures can be optimized to meet the required properties for various applications. Thus, investigating the mechanical properties of lattice structures seems beneficial for enhanced designs. This study aims to investigate and compare the effective Young’s modulus and anisotropy of four types of lattice structures including simple cubic, X-shape, tesseract, and octet-truss based lattices across seven distinct porosity levels ranging from 20% to 80%. The results revealed that, among the lattice structures considered, the simple cubic lattice exhibited the highest stiffness in the axial direction. Additionally, it was shown that as porosity increased, the stiffness of the structures decreased, and the structures became more anisotropic. However, the X-shape lattice was found to be more sensitive to porosity changes than other structures. Furthermore, unlike the simple cubic and tesseract lattices, which exhibited maximum effective elastic moduli along their principal axes and minima along their diagonals, the X-shape and octet-truss lattices displayed the opposite trend, with maxima along their diagonals and minima along their principal axes. The research outcomes provide a promising framework for designing optimal structures in engineering applications. |
| کلیدواژه ها |
| Lattice structures, Homogenization method, Effective elastic modulus, Zener anisotropy index |
| وضعیت: پذیرفته شده |