Modelling, and characterization of 3D printed cellular structures

被引:142
作者
Kucewicz, Michal [1 ]
Baranowski, Pawel [1 ]
Malachowski, Jerzy [1 ]
Poplawski, Arkadiusz [1 ]
Platek, Pawel [2 ]
机构
[1] Mil Univ Technol, Fac Mech Engn, Dept Mech & Appl Comp Sci, 2 Gen S Kaliskiego St, PL-00908 Warsaw, Poland
[2] Mil Univ Technol, Fac Mechatron & Aviat, Inst Armament Technol, 2 Gen S Kaliskiego St, PL-00908 Warsaw, Poland
关键词
3D printing; Cellular structure; Finite element modelling; Crashworthiness; Energy absorption; LATTICE STRUCTURES; ENERGY-ABSORPTION; MECHANICAL-PROPERTIES; HIGH-STRENGTH; BEHAVIOR; HONEYCOMBS; STIFFNESS; IMPACT; VALIDATION; COMPONENTS;
D O I
10.1016/j.matdes.2018.01.028
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
A procedure for characterizing the deformation process of a regular cellular structure under static loading conditions is presented. Three different topologies with similar relative densities were designed and fabricated by fused deposition modelling of ABSplus material. In the first stage, the material properties of the samples were evaluated and numerically correlated with experimental data. Experimental compression tests were performed on a universal strength machine. The comparison of the results of experiments and finite element analyses indicated acceptable similarity in terms of deformation, failure and force characteristics. Additionally, a mesh sensitivity study was performed, and the influence of the mesh on the obtained results was assessed. Finally, different types of elements for the discrete models of cellular structures were investigated. Two different approaches were considered for studying the energy-absorption properties of the cellular structures: with and without implementation of the erosion criterion for simulating material failure. (c) 2018 Elsevier Ltd. All rights reserved.
引用
收藏
页码:177 / 189
页数:13
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