Buckling and yield strength estimation of architected materials under arbitrary loads
نویسندگان
چکیده
Buckling strength estimation of architected materials has mainly been restricted to load cases oriented along symmetry axes. However, realistic scenarios usually exhibit more general stress distributions. This study employs local member analyses estimate the buckling surface stretch-dominated lattice structures. As an integral part method, yield is also determined. Local members are analyzed under different boundary conditions, i.e., simply-supported, clamped as well rotational springs accounting for topologies. The estimations compared with accurate but expensive numerical linear microstructural loadings. approach provides a valuable tool quickly structures, especially applications where state non-uniform such infill in additive manufacturing. Using approach, we compute entire surfaces orthotropic bulk modulus optimal plate, isotropic stiffness and truss structure subjected rotated uni-axial loads. All considered structures possess high anisotropy. In addition, plate possesses near-isotropic while counterpart anisotropic one. Inspired by calculations, further propose new configuration enhanced isotropy without or deterioration.
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ژورنال
عنوان ژورنال: International Journal of Solids and Structures
سال: 2022
ISSN: ['1879-2146', '0020-7683']
DOI: https://doi.org/10.1016/j.ijsolstr.2022.111842