Adaptive anisotropic porous structure design and modeling for 2.5D mechanical parts

Liu, Bin; Cheng, Huaqin; Liu, Meiying; Cao, Wei; Jiang, Kaiyong

doi:10.1016/j.matdes.2021.109786

Cited by 13 publications

(1 citation statement)

References 37 publications

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“…To construct pores, scaling the Voronoi cells is a common solution. However, the Voronoi cells are composed of Thissen polygons, which will cause serious stress concentration at the vertices [5] . In this paper, the NURBS curve [19] , which has the advantages of fluency and continuity, was introduced to realize the geometry optimization of pores, as shown in Fig.…”

Section: Geometry Optimization Based On Closed Nurbs Curvesmentioning

confidence: 99%

2.5D porous structure design based on principal stress line

Mamuti,

Chao,

Tian

2023

J Braz. Soc. Mech. Sci. Eng.

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In engineering applications, 2.5D mechanical parts are widely used, and can be further optimized using porous structure to meet the requirements of high specific strength and lightweight. In this paper, a topological design methodology driven by principal stress field was proposed to realize the optimal distribution of materials while keeping the macroscopic model unchanged. The shape of pores relies on the Voronoi-Tessellation by offsetting the closed Non-Uniform Rational B-Spline (NURBS) curves. To improve the mechanical properties, information of Principal Stress Line (PSL) curves and stress values calculated from finite element analysis were fully utilized. It is expected that this work can offer some insights for Functionally Graded Porous Materials (FGPMs) design.

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Section: Geometry Optimization Based On Closed Nurbs Curvesmentioning

confidence: 99%