Effective Viscoelastic Properties of Chiral Structures with Hierarchy

Yun Che Wang, Tsai Wen Ko, Kai Wen Tan

研究成果: Chapter

摘要

A class of hierarchically chiral metamaterials was analyzed with the finite element method for their effective linear viscoelastic properties under low frequency, uniaxial straining. The viscoelastic property of the solid phase was assumed to be of the standard linear solid. It is found that from Rank-1 to Rank-2 hierarchy effective Young’s modulus is enhanced. From Rank-2 to Rank-3, effective modulus may be roughly the same, slightly increased or decreased, depending on the ligament thickness. When the ligament thickness is less than 1.5 mm, increasing hierarchy decreases the overall damping. For larger thickness, overall damping may be slightly enhanced by hierarchy. Gradient lateral deformation is observed in the metamaterials under uniaxial straining, indicating the existence of chiral effects.

原文English
主出版物標題Advanced Structured Materials
發行者Springer Science and Business Media Deutschland GmbH
頁面429-440
頁數12
DOIs
出版狀態Published - 2022

出版系列

名字Advanced Structured Materials
155
ISSN(列印)1869-8433
ISSN(電子)1869-8441

All Science Journal Classification (ASJC) codes

  • 材料科學(全部)

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