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Abstract This paper proposes a novel analytical method based on a stiffness matrix. The static properties of a Windmill Chiral Cell Structure (WCCS) are evaluated using this method. The theoretical… Click to show full abstract
Abstract This paper proposes a novel analytical method based on a stiffness matrix. The static properties of a Windmill Chiral Cell Structure (WCCS) are evaluated using this method. The theoretical model for the WCCS, which with twist degree of freedom (DOF), is established by hierarchical construction, rigid constraints establishing and eliminating redundant nodes. The influence of different structural parameters on the DOF of WCSS is also investigated. Moreover, the correctness of the theoretical model is verified by the finite element analysis (FEA). The method can be applied to the analysis of linear properties of mechanical metamaterials and provide some reference for the 3D cellular structure design. The proposed WCCS structure can be used to make high precision rotary displacement stages.
Journal Title: Composite Structures
Year Published: 2021
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