光固化3D打印平板晶格结构的压缩性能  

Compression Performance of Light-curing 3D Printing Plate Lattice Structures

作　　者：冯森 崔承云[1] 陈璐 崔熙贵[1] FENG Sen;CUI Chengyun;CHEN Lu;CUI Xigui(School of Mechanical Engineering,Jiangsu University,Zhenjiang 212013,China)

机构地区：[1]江苏大学机械工程学院,江苏镇江212013

出　　处：《塑料工业》2023年第8期138-146,共9页China Plastics Industry

基　　金：国家自然科学基金(51875267)。

摘　　要：基于光固化3D打印技术制备了桁架晶格和平板晶格试样,再将其作为试验研究对象进行了准静态压缩测试,并利用有限元分析方法对模型进行了准静态压缩仿真分析。研究平板晶格相比桁架晶格在强度、刚度和韧性方面的力学性能优势,并进一步研究了体积分数和孔径对平板晶格压缩性能的影响。研究结果表明,在相同体积分数下,平板晶格的强度、刚度和韧性最大分别是桁架晶格的2.08倍、3.86倍和3.13倍,仿真分析所用的材料模型具备适用性,体积分数和孔径的变化对FCC-plate的强度、刚度和韧性的影响具有一致性。Based on the light-curing three dimensional(3D)printing technology,truss lattice and plate lattice samples were prepared as experimental research objects for quasi-static compression testing,and quasi-static compression simulation analysis of the model was carried out by finite element analysis method.The mechanical properties advantages of plate lattice over truss lattice in terms of strength,stiffness and toughness were studied,and the effects of volume fraction and pore size on the compression performance of plate lattice were further studied.The results show that under the same volume fraction,the strength,stiffness and toughness of the plate lattice are 2.08 times,3.86 times and 3.13 times that of the truss lattice,respectively,and the material model used in the simulation analysis is applicable.Changes in volume fraction and pore size have consistent effects on the strength,stiffness,and toughness of FCC-plate.

关 键 词：晶格结构 3D打印 有限元分析 准静态压缩 力学性能 

分 类 号：TQ316.312[化学工程—高聚物工业]