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Effect of process parameters on mechanical properties of additive manufactured SMP structures based on FDM

  • Bingfei Liu

    Bingfei Liu, born in 1985, is an associate professor at the Civil Aviation University of China, and hold s a PhD in solid mechanics, from Beijing Jiaotong University. His research directions are intelligent materials and structural mechanics.

    , Li Yang

    Li Yang, born in 1996, is a master student at the Civil Aviation University of China with the research direction in smart materials and structures.

    , Rui Zhou

    Rui Zhou, born in 1983, is an associate professor at the Civil Aviation University of China, and holds a PhD in mechanical engineering from Tianjin University. Her research direction is in plastic forming theory and numerical simulation.

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    and Bin Hong

    Bin Hong, born in 1976, holds a PhD in mechanical engineering from Tianjin University. His research directions are high voltage insulating epoxy resin and Vehicle testing and simulation. Since 2000, he has been working at the Institute of Internal Combustion Engines of Tianjin University.

Published/Copyright: March 16, 2022
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Abstract

As a new concept and multidisciplinary research area that combines advanced manufacturing, materials science and mechanics, 4D printing has attracted academic interest in the recent years. Shape Memory Polymer (SMP) is widely used in 4D printing due to its high stiffness and fast response. In order to make better analysis and research on additive manufacturing of SMP structures based on FDM, the DMA, DSC and TMA tests were conducted first to determine the basic thermodynamic properties of SMP. And then nine parameters, divided into three groups including printing parameters, temperature parameters and structural parameters were examined to character and assess the effect on the mechanical properties of SMP samples, respectively. The results show that the best parameters combination of temperature and printing parameters for the SMP printing is that platform temperature T P  = 65 °C, nozzle temperature T N  = 210 °C, feed rate Fr = 50 mm/s, layer thickness Lt = 0.18 mm. Compared with temperature and printing parameters, the structural parameters directly affect the tensile strength of the specimen with improve of 17.298 MPa while these two are 3.639 and 5.528 MPa. The tensile strength of the specimen can be effectively improved through adjusting the structural parameters.


Corresponding author: Rui Zhou, Civil Aviation University of China, Tianjin, China, E-mail:

Funding source: Experimental Technology Innovation Fund Project of Civil Aviation University of China

Award Identifier / Grant number: 2021CXJJ72

Funding source: Graduate Science and Technology Innovation Fund of Civil Aviation University of China

Award Identifier / Grant number: 2020YJS010

Funding source: The Company Technical Service Project

Award Identifier / Grant number: 20210407010201

Funding source: National Natural Science Foundation of China

Award Identifier / Grant number: 11502284

About the authors

Bingfei Liu

Bingfei Liu, born in 1985, is an associate professor at the Civil Aviation University of China, and hold s a PhD in solid mechanics, from Beijing Jiaotong University. His research directions are intelligent materials and structural mechanics.

Li Yang

Li Yang, born in 1996, is a master student at the Civil Aviation University of China with the research direction in smart materials and structures.

Rui Zhou

Rui Zhou, born in 1983, is an associate professor at the Civil Aviation University of China, and holds a PhD in mechanical engineering from Tianjin University. Her research direction is in plastic forming theory and numerical simulation.

Bin Hong

Bin Hong, born in 1976, holds a PhD in mechanical engineering from Tianjin University. His research directions are high voltage insulating epoxy resin and Vehicle testing and simulation. Since 2000, he has been working at the Institute of Internal Combustion Engines of Tianjin University.

  1. Author contributions: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.

  2. Research funding: The authors acknowledge the financial support of Experimental Technology Innovation Fund project of Civil Aviation University of China (No. 2021CXJJ72), Graduate Science and Technology Innovation Fund of Civil Aviation University of China (2020YJS010), the Company technical service project (20210407010201) and the authors acknowledge the financial support of National Natural Science Foundation of China (No. 11502284).

  3. Conflict of interest statement: The authors declare no conflicts of interest regarding this article.

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Published Online: 2022-03-16
Published in Print: 2022-03-28

© 2022 Walter de Gruyter GmbH, Berlin/Boston

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