Mechanical properties of 3D printed polymeric Gyroid cellular structures: Experimental and finite element study
Mechanical properties of 3D printed polymeric Gyroid cellular structures: Experimental and finite element study
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DOI：
10.1016/j.matdes.2019.107597
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发表时间：
2019-03-05
影响因子：
8.4
通讯作者：
Jasiuk, Iwona M.
中科院分区：
文献类型：
--
作者：
Abueidda, Diab W.;Elhebeary, Mohamed;Jasiuk, Iwona M.
陀螺曲面是三周期极小曲面（TPMS）家族中的一员。本文从实验和计算两方面研究了陀螺结构的力学性能。采用3D打印技术制备了不同相对密度的pa2200聚合物陀螺仪结构样品。有限元分析采用Arruda-Boyce有限变形弹粘塑性模型。为了进行有限元分析，3D打印材料的性能是通过一系列的拉伸和压缩测试来确定的。陀螺结构的有限元计算结果与实验数据吻合较好。此外，还将gyroid结构的单轴模量、抗压强度和能量吸收与前人研究的IWP-、Neovius-和primitive -结构进行了比较。结果表明，陀螺结构具有较好的力学性能，可与其他TPMS细胞结构相媲美。(c) 2019年作者。Elsevier Ltd.出版。这是一篇基于CC BY-NC-ND许可的开放获取文章。
Gyroid is a member of the triply periodic minimal surfaces (TPMS) family. In this paper, the mechanical properties of Gyroid-structures are investigated both experimentally and computationally. 3D printing is used to fabricate polymeric Gyroid-structure specimens made of PA 2200 at different relative densities. In the finite element analysis, the Arruda-Boyce finite-deformation elasto-viscoplastic model is employed. To perform the finite element analysis, the properties of the 3D printed material are determined by a series of tension and compression tests. The finite element results of the Gyroid-structure agree verywell with the experimental data. Also, the uniaxialmodulus, compressive strength, and energy absorption of the Gyroid-structures are comparedwith those of the IWP-, Neovius-, and Primitive-structures from a previous study. The comparison shows that Gyroidstructures have relatively good mechanical properties and competewell with the other TPMS cellular structures. (c) 2019 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license.