仿生高强韧轻质管结构的抗弯性能研究  

Study on Bending Performance of Bionic High-strength and Lightweight Pipe Structures

作　　者：辛嘉铭 纪小刚 孙榕 苏义麟 XIN Jiaming;JI Xiaogang;SUN Rong;SU Yilin(School of Mechanical Engineering,Jiangnan University,Wuxi,Jiangsu,214122;Jiangsu Key Laboratory of Advanced Food Manufacturing Equipment Technology,Wuxi,Jiangsu,214122)

机构地区：[1]江南大学机械工程学院,无锡214122 [2]江苏省食品先进制造装备技术重点实验室,无锡214122

出　　处：《中国机械工程》2025年第2期333-341,共9页China Mechanical Engineering

基　　金：国家自然科学基金(52175234,51105175);江苏省“六大人才高峰”项目(JXQC-006)。

摘　　要：基于玻璃海绵中八角形结构和竹节中维管束特征,利用数字光处理技术(digital light processing,DLP)工艺设计并制备了两类仿生轻质高强韧平面结构及对应的管状支架结构;采用仿真与实验相结合的方法,聚焦分析仿生平面结构在受压过程中的极限载荷、破坏模式和吸能情况;基于三点弯曲力学性能试验结果并结合数值模拟选取抗弯性能最优的仿生平面结构,并对各平面结构对应的仿生轻质管进行抗弯性能研究。结果表明,与传统蜂窝管相比,所设计的仿玻璃海绵轻质管抗弯性能更强,验证了平面结构对比结果的可靠性。研究结果可为新型轻质高强韧支架的设计和制备提供指导与参考。Based on the characteristics of octagonal structure in glass sponge and vascular bundle in bamboo segment,two kinds of bionic lightweight,high-strength and tough planar structures and corresponding tubular scaffolds were designed and prepared by DLP process.By combining simulation and experiments,the ultimate load,failure mode and energy absorption of bionic plane structures during compression were analyzed.Based on the experimental results of three-point bending mechanics properties and numerical simulation,the bionic plane structures with the best bending performance were selected,and the bionic light pipes corresponding to each plane structures were tested for bending performance.The results show that compared with the traditional honeycomb tube,the designed glass sponge light tube has stronger bending resistance,which verifies the reliability of the plane structure comparison results.The resylts may provide guidance and reference for the design and preparation of new lightweight high strength and toughness scaffolds.

关 键 词：玻璃海绵 仿生轻质结构 三点弯曲 轻量系数 数字光处理工艺 

分 类 号：TB34[一般工业技术—材料科学与工程] TP391.73[自动化与计算机技术—计算机应用技术]