Applied Mathematics and Mechanics (English Edition) ›› 2021, Vol. 42 ›› Issue (11): 1619-1632.doi: https://doi.org/10.1007/s10483-021-2788-9

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Complicated deformation simulating on temperature-driven 4D printed bilayer structures based on reduced bilayer plate model

Junjie SONG1,2, Yixiong FENG1,2, Yong WANG1,2, Siyuan ZENG1,2, Zhaoxi HONG1,2, Hao QIU1,2, Jianrong TAN1,2   

  1. 1. State Key Laboratory of Fluid Power and Mechatronic Systems, Zhejiang University, Hangzhou 310027, China;
    2. Engineering Research Center for Design Engineering and Digital Twin of Zhejiang Province, Zhejiang University, Hangzhou 310027, China
  • Received:2021-05-23 Revised:2021-09-14 Published:2021-10-23
  • Contact: Yixiong FENG, E-mail:fyxtv@zju.edu.cn
  • Supported by:
    the National Natural Science Foundation of China (Nos. 52130501 and 52075479) and the National Key R&D Program of China (No. 2018YFB1700804)

Abstract: The four-dimensional (4D) printing technology, as a combination of additive manufacturing and smart materials, has attracted increasing research interest in recent years. The bilayer structures printed with smart materials using this technology can realize complicated deformation under some special stimuli due to the material properties. The deformation prediction of bilayer structures can make the design process more rapid and thus is of great importance. However, the previous works on deformation prediction of bilayer structures rarely study the complicated deformations or the influence of the printing process on deformation. Thus, this paper proposes a new method to predict the complicated deformations of temperature-sensitive 4D printed bilayer structures, in particular to the bilayer structures based on temperature-driven shape-memory polymers (SMPs) and fabricated using the fused deposition modeling (FDM) technology. The programming process to the material during printing is revealed and considered in the simulation model. Simulation results are compared with experiments to verify the validity of the method. The advantages of this method are stable convergence and high efficiency, as the three-dimensional (3D) problem is converted to a two-dimensional (2D) problem. The simulation parameters in the model can be further associated with the printing parameters, which shows good application prospect in 4D printed bilayer structure design.

Key words: reduced bilayer plate model, four-dimensional (4D) printing, temperaturedriven shape-memory polymer (SMP), bilayer structure, complicated deformation simulating

2010 MSC Number: 

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