3D打印火箭壳体Kagome蜂窝加筋结构压溃性能预测和实验验证  

Prediction and Experimental Verification of Collapse Performance of Kagome Honeycomb Stiffened Structures of 3D Printed Rocket Shell

作　　者：祝雪峰[1] 杨子康 徐隆坤 徐金亭[1] 胡平[1] ZHU Xuefeng;YANG Zikang;XU Longkun;XU Jinting;HU Ping(School of Automotive Engineering,Dalian University of Technology,Dalian 116024,Liaoning Province,China)

机构地区：[1]大连理工大学汽车工程学院,辽宁大连116024

出　　处：《吉林大学学报（理学版）》2023年第1期154-161,共8页Journal of Jilin University:Science Edition

基　　金：国家重点研发计划项目(批准号:2021YFB3300601)。

摘　　要：研究丙烯腈-丁二烯-苯乙烯(ABS)塑料3D打印Kagome蜂窝薄壁加筋结构压溃性及其解析公式,并实验验证各向同性Kagome蜂窝的抗压溃性能.根据平面结构正交各向异性Kagome蜂窝的有效弹性模量公式,给出3D打印Kagome蜂窝的弹性模量、相对密度和形状各向异性比的关系,通过解析公式和实验结果,得到抗压溃性能最优的Kagome蜂窝结构.该方法可用于指导火箭箭体加筋结构的设计和加工.We studied crushing performance and its analytical formula of the 3D printed Kagome honeycomb thin-walled stiffened structure, which was made of acrylonitrile butadiene styrene(ABS) plastics, and verified the crushing performance of isotropic Kagome honeycombs through experiments. According to the effective elastic modulus formula of orthogonally anisotropic Kagome honeycomb with plane structure, we gave the relationship among elastic modulus, relative density and shape anisotropy ratio of 3D printed Kagome honeycomb structure. Through analytical formulas and experimental results, we obtained the Kagome honeycomb structure with the best crushing performance. The method could be used to guide the design and processing of the stiffened structure of the rocket body.

关 键 词：Kagome蜂窝加筋结构 增材制造 力学性能 

分 类 号：O482.1[理学—固体物理]