Enhancement in the mechanical behaviour of a Schwarz Primitive periodic minimal surface lattice structure design

2022 ◽  
Vol 216 ◽  
pp. 106977
Author(s):  
Xiao Guo ◽  
Junhao Ding ◽  
Xinwei Li ◽  
Shuo Qu ◽  
Xu Song ◽  
...  
Keyword(s):  
Minimal Surface ◽  
Mechanical Behaviour ◽  
Lattice Structure ◽  
Structure Design ◽  
Periodic Minimal Surface ◽  
Surface Lattice

scholarly journals Tetrahedron-Based Porous Scaffold Design for 3D Printing

Designs ◽  
2019 ◽  
Vol 3 (1) ◽  
pp. 16 ◽  
Author(s):  
Ye Guo ◽  
Ke Liu ◽  
Zeyun Yu
Keyword(s):  
Minimal Surface ◽  
Porous Scaffold ◽  
3D Models ◽  
Structure Design ◽  
Implicit Surfaces ◽  
Implicit Surface ◽  
Periodic Minimal Surface ◽  
Triply Periodic ◽  
Hexahedral Meshes ◽  
Triply Periodic Minimal Surface

Tissue repairing has been the ultimate goal of surgery, especially with the emergence of reconstructive medicine. A large amount of research devoted to exploring innovative porous scaffold designs, including homogeneous and inhomogeneous ones, have been presented in the literature. The triply periodic minimal surface has been a versatile source of biomorphic structure design due to its smooth surface and high interconnectivity. Nonetheless, many 3D models are often rendered in the form of triangular meshes for its efficiency and convenience. The requirement of regular hexahedral meshes then becomes one of limitations of the triply periodic minimal surface method. In this paper, we make a successful attempt to generate microscopic pore structures using tetrahedral implicit surfaces. To replace the conventional Cartesian coordinates, a new coordinates system is built based on the perpendicular distances between a point and the tetrahedral faces to capture the periodicity of a tetrahedral implicit surface. Similarly to the triply periodic minimal surface, a variety of tetrahedral implicit surfaces, including P-, D-, and G-surfaces are defined by combinations of trigonometric functions. We further compare triply periodic minimal surfaces with tetrahedral implicit surfaces in terms of shape, porosity, and mean curvature to discuss the similarities and differences of the two surfaces. An example of femur scaffold construction is provided to demonstrate the detailed process of modeling porous architectures using the tetrahedral implicit surface.

Design and analyze of flexure hinges based on triply periodic minimal surface lattice

2021 ◽  
Vol 68 ◽  
pp. 338-350
Author(s):  
A. Jiansheng Pan ◽  
B. Jianwei Wu ◽  
C. Yin Zhang ◽  
D. Hui Wang ◽  
E. Jiubin Tan
Keyword(s):  
Minimal Surface ◽  
Flexure Hinges ◽  
Periodic Minimal Surface ◽  
Surface Lattice ◽  
Triply Periodic ◽  
Triply Periodic Minimal Surface
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