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The transverse elastic properties of chiral honeycombs |
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| Authors: | A. Lorato P. Innocenti F. Scarpa A. Alderson K.L. Alderson K.M. Zied N. Ravirala W. Miller C.W. Smith K.E. Evans |
| Affiliation: | 1. School of Engineering, Computing and Mathematics, University of Exeter, Exeter EX4 4QF, UK;2. Centre for Materials Research and Innovation, University of Bolton, Deane Road, Bolton BL3 5AB, UK;3. Department of Aerospace Engineering, University of Bristol, University Walk, Bristol BS8 1TR, UK |
| Abstract: | This work describes the out-of-plane linear elastic mechanical properties of trichiral, tetrachiral and hexachiral honeycomb configurations. Analytical models are developed to calculate the transverse Young’s modulus and the Voigt and Reuss bounds for the transverse shear stiffness. Finite Element models are developed to validate the analytical results, and to identify the dependence of the transverse shear stiffness vs. the gauge thickness of the honeycombs. The models are then validated with experimental results from flatwise compressive and simple shear tests on samples produced with rapid prototype (RP)-based techniques. |
| Keywords: | A. Smart materials B. Mechanical properties C. Elastic properties C. Deformation C. Finite element analysis |
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