Study on Lightweight Design and Biomechanical Property of High Nitrogen
Nickel Free Stainless Steel Plate: Effect of Hollow Structure
SUN Yuxia1, REN Yibin2, ZHAO Haochuan2,3, Wang Qingchuan2, YANG Ke2
1.Engineering Training Center, Shenyang Aerospace University, Shenyang Liaoning 110136, China;
2.Institute of Metal Research, Chinese Academy of Sciences, Shenyang Liaoning 110016, China;
3.AECC Guizhou Liyang Aviation Power Co., Ltd., Guiyang Guizhou 550014, China
Abstract：High nitrogen nickel free stainless steel (HNNFSS) has begun to be used in clinic, which possesses excellent mechanical
properties, corrosion resistance and biocompatibility. Especially its strength is two times more than that of the conventional 316L stainless
steel, but this advantage is not fully used in optimization of the structure of the implant devices. In this paper, the effects of the changes
of hollow structure, including distribution, size, quantity of hole in HNNFSS bone plate on the biomechanical behavior of bone plates
was studied by means of finite element analysis, the result showed that the lightweight ratio increased gradually with the size of hole
diameter and the number of hole, and the resistance to bending was decreased. However, the stress distribution of bone plate tends to
uniformity during three point bending test. The lightweight ratio of high strength HNNFSS bone plate closed to 15% when used three
holes structure with 50% plate thickness as hole diameter. Based on our result, the clinic 316L plate and titanium plate can get about
10% lightweight and keep good bending properties when use the double hole structure with less 50% plate thickness as hole diameter.
孙玉霞1，任伊宾2，赵浩川2,3，王青川2，杨柯2. 高氮无镍不锈钢接骨板的轻量化设计及生物力学研究——空心结构的影响[J]. 中国医疗设备, 2018, 33(5): 21-27.
SUN Yuxia1, REN Yibin2, ZHAO Haochuan2,3, Wang Qingchuan2, YANG Ke2. Study on Lightweight Design and Biomechanical Property of High Nitrogen
Nickel Free Stainless Steel Plate: Effect of Hollow Structure. China Medical Devices, 2018, 33(5): 21-27.