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Reducing Mechanical Anisotropy in Material Extrusion Process Using Bioinspired Architectured Lattice Structures by Mayur Jiyalal Prajapati; Ajeet Kumar; Shang-Chih Lin; Jeng-Ywan Jeng is a Engineering article available to read on EtoBox.

What is Reducing Mechanical Anisotropy in Material Extrusion Process Using Bioinspired Architectured Lattice Structures about?

Additive manufacturing (AM) entails manufacturing complex lightweight structures based on the principle of layer-wise material deposition. However, this principle also results in high mechanical anisotropy in all directions. The process of material extrusion (MEX) is severely affected by mechanical properties owing to its processing conditions. Mechanical anisotropy can result in sudden failures when loaded multidirectionally; its effect is more predominant in lattice structures. This study was conducted to reduce mechanical anisotropy in MEX-fabricated lattice structures by mimicking the internal architecture of the human tooth. The human tooth is prone to mechanical anisotropy because the hard enamel, meant to withstand extreme mechanical forces, consists of microscopic enamel prisms (perpendicular rods). Soft dentin imbues the enamel with the necessary toughness when loaded multidirectionally. This natural design principle was bio-mimicked in this study to reduce the mechanical anisotropy in additively manufactured lattice structures. The lattice structure was printed using an elastic-plastic material (hard) that was similar to the enamel via a MEX process and toughened by an un

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Author

Mayur Jiyalal Prajapati; Ajeet Kumar; Shang-Chih Lin; Jeng-Ywan Jeng

Publisher

Elsevier BV

Published

2023

Language

EN

Field

Engineering (Physical Sciences)