【作者】 杨翔鹏； 王霏； 张际亮； 顾永华； 颜丙功； 江开勇；

【Author】 YANG Xiang-peng;WANG Fei;ZHANG Ji-liang;Gu Yong-hua;Yan Bing-gong;Jiang Kai-yong;Fujian Provincial Key Laboratory of Special Energy Manufacturing,Xiamen Key Laboratory of Digital Vision Measurement,Huaqiao University;

【机构】 华侨大学福建省特种能场制造重点实验室厦门市数字化视觉测量重点实验室；

【摘要】 钴铬合金是常用的人造骨骼材料。本文设计了4种常见的多孔单元结构模型,应用数值模拟(Abaqus)和实验验证(SLM成形后测量)方法,研究单元结构对多孔材料抗压强度、弹性模量和应力应变关系的影响;同时分析了相同结构的不同孔径大小对材料力学性能的影响。实验结果表明交叉结构多孔材料的力学性能的最优,结构中的形状突变会导致力学性能大幅降低,孔径的增大会降低工件力学性能,但是性能减小速率会越来越慢。实验中所设计的A750和C结构的钴铬合金多孔骨具有较好的力学性能,可以应用于人造骨骼的制造。更多还原

【Abstract】 Cobalt chromium alloy is a kind of commonly used artificial bone material.Experimental designed 4 kinds of porous structure model,Application of numerical simulation(Abaqus) and experimental verification(measurement after SLM forming) method,study the effect of element structure on the compressive strength,elastic modulus and stress-strain relationship of porous materials;we also analysis the effect of different pore sizes of the same structure on the mechanical properties of the material.Experiments show that cross-structural support than a vertical structure,diameter increases will reduce the mechanical properties of the workpiece,but reducing the rate and smaller.The A750 and C structure of Co-Cr alloy porous bone have good mechanical properties and can be used in the manufacture of artificial bone.更多还原