Design of hierarchical structures and mechanical properties of 316 L stainless steel FCC lattice structures by laser powder bed fusion

@article{e5e0829f2d1344c1adb6e3a38bdc9a78,

title = “Design of hierarchical structures and mechanical properties of 316 L stainless steel FCC lattice structures by laser powder bed fusion”,

abstract = “To mitigate stress concentration at the nodes of 316 L stainless steel FCC lattice structures by laser-based powder bed (LPBF). two hierarchical derivatives (FCC-H and FCC-VH) were designed by adding auxiliary struts in two orientations at constant relative density. Combined finite element simulations and experiments were conducted to analyze how the hierarchical design influenced nodal stress distribution and mechanical properties. The auxiliary struts redirected stress flow paths, enabling multi-stage load transfer and stress homogenization. Both FCC-H and FCC-VH outperformed the original FCC lattice, with FCC-VH exhibiting the greatest improvement.”,

keywords = “Finite element simulation, Laser powder bed fusion, Lattice structures, Mechanical properties, Structural design”,

author = “Jiandong Wang and Chenxinwei Wang and Yian Shen and Weiming Cui and Qiheng Bai and Chengbo Pan and Xu Li and Liqun Li and Peng He”,

note = “Publisher Copyright: {\textcopyright} 2026 Elsevier B.V.”,

year = “2026”,

month = oct,

day = “1”,

doi = “10.1016/j.matlet.2026.141134”,

language = “英语”,

volume = “420”,

journal = “Materials Letters”,

issn = “0167-577X”,

publisher = “Elsevier B.V.”,

}