Adjustable mechanical performances of 4D-printed shape memory lattice structures

被引:7
|
作者
Dong, Yu [1 ]
Chen, Kaijuan [1 ]
Liu, Hu [1 ]
Li, Jian [2 ]
Liang, Zhihong [1 ]
Kan, Qianhua [1 ]
机构
[1] Southwest Jiaotong Univ, Sch Mech & Aerosp Engn, Appl Mech & Struct Safety Key Lab Sichuan Prov, Chengdu 610031, Peoples R China
[2] Shock & Vibrat Engn Mat & Struct Key Lab Sichuan P, Mianyang 621900, Sichuan, Peoples R China
基金
中国国家自然科学基金;
关键词
4D-printing; Shape memory effect; Programmability; Reconfigurability; Adjustable mechanical performance; AUXETIC MATERIALS; POLYMERS; POLYURETHANE;
D O I
10.1016/j.compstruct.2024.117971
中图分类号
O3 [力学];
学科分类号
08 ; 0801 ;
摘要
Lattice structures are widely used due to their inherent advantages. With the development of smart devices, there is a growing demand for programmable, adjustable, and reconfigurable performances. However, a significant limitation of traditional lattice structures is that their shape, function, and performance cannot be changed after fabrication. In order to address this issue, we conducted experimental and simulated investigations on the shape memory effect, adjustable mechanical performances, and their deformation mechanism using the shape memory programming method. Two bending-dominated lattice structures, namely four curved bars lattice structure (FCBL) and sinusoidal wave horseshoe lattice structure (SWHL), were taken as examples. Results show that the deformation modes of both structures are switched from a bending-dominated mode to a stretching-dominated one after programming while exhibiting distinct bending sections. FCBL displays a 'C' shape with one bending section, whereas SWHL exhibits an 'S' shape with two bending sections. These deformation modes significantly enhance the tensile moduli by 480.9% (FCBL) and 1546% (SWHL), and change their Poisson's ratio from -0.29 to 0.25 (FCBL) and -0.31 to 0.43 (SWHL), respectively. The modulus and Poisson's ratio of FCBL and SWHL are well reproduced by the finite element modeling, providing a reference for designing the tunable mechanical performances of lattice structures.
引用
收藏
页数:19
相关论文
共 50 条
  • [31] 4D printed shape memory polymers and their structures for biomedical applications
    Li, YueJia
    Zhang, FengHua
    Liu, YanJu
    Leng, JinSong
    SCIENCE CHINA-TECHNOLOGICAL SCIENCES, 2020, 63 (04) : 545 - 560
  • [32] 4D printed shape memory polymers and their structures for biomedical applications
    LI YueJia
    ZHANG FengHua
    LIU YanJu
    LENG JinSong
    Science China(Technological Sciences), 2020, 63 (04) : 545 - 560
  • [33] 4D printed shape memory polymers and their structures for biomedical applications
    LI YueJia
    ZHANG FengHua
    LIU YanJu
    LENG JinSong
    Science China(Technological Sciences), 2020, (04) : 545 - 560
  • [34] 4D printed tunable mechanical metamaterials with shape memory operations
    Bodaghi, M.
    Liao, W. H.
    SMART MATERIALS AND STRUCTURES, 2019, 28 (04)
  • [35] Thermo-Mechanical Characterization of 4D-Printed Biodegradable Shape-Memory Scaffolds Using Four-Axis 3D-Printing System
    Slavkovic, Vukasin
    Palic, Nikola
    Milenkovic, Strahinja
    Zivic, Fatima
    Grujovic, Nenad
    MATERIALS, 2023, 16 (14)
  • [36] Spatial Control of Functional Response in 4D-Printed Active Metallic Structures
    Ji Ma
    Brian Franco
    Gustavo Tapia
    Kubra Karayagiz
    Luke Johnson
    Jun Liu
    Raymundo Arroyave
    Ibrahim Karaman
    Alaa Elwany
    Scientific Reports, 7
  • [37] Shape Morphing of 4D-Printed Polylactic Acid Structures under Thermal Stimuli: An Experimental and Finite Element Analysis
    Kostopoulos, Grigorios
    Stamoulis, Konstantinos
    Lappas, Vaios
    Georgantzinos, Stelios K.
    AEROSPACE, 2024, 11 (02)
  • [38] Spatial Control of Functional Response in 4D-Printed Active Metallic Structures
    Ma, Ji
    Franco, Brian
    Tapia, Gustavo
    Karayagiz, Kubra
    Johnson, Luke
    Liu, Jun
    Arroyave, Raymundo
    Karaman, Ibrahim
    Elwany, Alaa
    SCIENTIFIC REPORTS, 2017, 7
  • [39] RESEARCHERS PRODUCE 4D-PRINTED MATERIAL
    不详
    ADVANCED MATERIALS & PROCESSES, 2017, 175 (08): : 72 - 72
  • [40] Shape-Morphing Antenna Array by 4D-Printed Multimaterial Miura Origami
    Park, Seyeon
    Park, Eiyong
    Lee, Minjae
    Lim, Sungjoon
    ACS APPLIED MATERIALS & INTERFACES, 2023, 15 (42) : 49843 - 49853