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所属单位：机电学院
发表刊物：Zhongguo Jixie Gongcheng
摘要：Aimmed at the non-coexistence problems between high hardness and high fracture of the objects produced by additive manufacturing methods. Inspired by the multilevel structures in nature, a multilevel lattice structure modeling methodology was proposed. Firstly, a family of multi lattices with specific mechanical properties was established. Secondly, different lattices were filled in multistage space. Isosurface geometry modeling algorithm was used to achieve transitional connection between the lattices and gradient design. Thirdly, the FEA (finite element analysis) results were used to actuate the porosity and size of lattice structures by using image mapping method. An object which could satisfy biomechanics properties was obtained through multiple iterations. Finally, the experimental results validate this method may well control the elastic modulus and impact toughness. Moreover, this method was applied to the design of teeth, and achieves good results. © 2019, China Mechanical Engineering Magazine Office. All right reserved.
ISSN号：1004-132X
是否译文：否
发表时间：2019-05-10
合写作者：Yu, Changjiang,Li, Dawei,程筱胜
通讯作者：戴宁