Mechanical and damping performances of TPMS lattice metamaterials fabricated by laser powder bed fusion

作     者：Yan-peng Wei Huai-qian Li Jing-jing Han Ying-chun Ma Hao-ran Zhou Jing-chang Cheng Jian Shi Zhi-quan Miao Bo Yu Feng Lin Yan-peng Wei;Huai-qian Li;Jing-jing Han;Ying-chun Ma;Hao-ran Zhou;Jing-chang Cheng;Jian Shi;Zhi-quan Miao;Bo Yu;Feng Lin

作者机构：National Key Laboratory of Advanced Casting TechnologiesShenyang Research Institute of Foundry Co.Ltd.CAMShenyang 110022China Department of Mechanical EngineeringTsinghua UniversityBeijing 100084China Key Laboratory of Space PhysicsBeijing 100076China 

出 版 物：《China Foundry》 (中国铸造（英文版）)

年 卷 期：2024年第21卷第4期

页      面：327-333页

核心收录：

学科分类：08[工学] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

基　　金：financially supported by the Liaoning Province Applied Fundamental Research Program(No.2023JH2/101700039) Liaoning Province Natural Science Foundation(No.2023-MSLH-328) 

主　　题：lattice metamaterials TPMS energy absorption damping laser powder bed fusion 

摘      要：Lattice metamaterials based on three-period minimum surface(TPMS)are an effective means to achieve lightweight and high-strength materials which are widely used in various fields such as aerospace and ***,its vibration and noise reduction,and damping properties have not been fully ***,in this study,the TPMS structures with parameterization were designed by the method of surface migration,and the TPMS structures with high forming quality was manufactured by laser powder bed fusion(LPBF).The mechanical properties and energy absorption characteristics of the beam and TPMS structures were studied and compared by quasi-static *** modal shapes of the beam lattice structures and TPMS structures were obtained by the free modal analysis,and the damping properties of two structures were obtained by modal *** the two structures after heat treatment with the same porosity of 70%,the yield strength of the beam lattice structure reaches 40.76 MPa,elastic modulus is 20.38 GPa,the energy absorption value is 32.23 MJ·m^(-3),the damping ratio is 0.52%.The yield strength,elastic modulus,energy absorption value,and damping ratio of the TPMS structure are 50.74 MPa,25.37 GPa,47.34 MJ·m^(-3),and 0.99%,*** results show that TPMS structures exhibit more excellent mechanical properties and energy absorption,better damping performance,and obvious advantages in structural load and vibration and noise reduction compared with the beam lattice structures under the same porosity.