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3D-Printed Programmable Mechanical Metamaterials for Vibration Isolation and Buckling Control

Author

Listed:
  • Ali Zolfagharian

    (School of Engineering, Deakin University, Geelong, VIC 3216, Australia)

  • Mahdi Bodaghi

    (Department of Engineering, School of Science and Technology, Nottingham Trent University, Nottingham NG11 8NS, UK)

  • Ramin Hamzehei

    (Department of Engineering, School of Science and Technology, Nottingham Trent University, Nottingham NG11 8NS, UK
    Department of Mechanical Engineering, University of Manitoba, Winnipeg, MB R3T 5V6, Canada)

  • Liam Parr

    (School of Engineering, Deakin University, Geelong, VIC 3216, Australia)

  • Mohammad Fard

    (School of Engineering, Royal Melbourne Institute of Technology, Melbourne, VIC 3000, Australia)

  • Bernard F. Rolfe

    (School of Engineering, Deakin University, Geelong, VIC 3216, Australia)

Abstract

Vibration isolation performance at low-frequency ranges before resonance is a vital characteristic that conventional springs cannot exhibit. This paper introduces a novel zero Poisson’s ratio graded cylindrical metamaterial to fulfill two main goals: (1) vibration isolation performance in low-frequency bands prior to resonance and (2) global buckling control of a long cylindrical tube. For this purpose, “soft and stiff” re-entrant unit cells with varying stiffness were developed. The cylindrical metamaterials were then fabricated using a multi-jet fusion HP three-dimensional (3D) printer. The finite element analyses (FEA) and experimental results demonstrate that the simultaneous existence of multi-stiffness unit cells leads to quasi-zero stiffness (QZS) regions in the force-displacement relationship of a cylindrical metamaterial under compression. They possess significant vibration isolation performance at frequency ranges between 10 and 30 Hz. The proposed multi-stiffness re-entrant unit cells also offer global buckling control of long cylindrical tubes (with a length to diameter ratio of 3.7). The simultaneous existence of multi-stiffness re-entrant unit cells provides a feature for designers to adjust and control the deformation patterns and unit cells’ densification throughout cylindrical tubes.

Suggested Citation

  • Ali Zolfagharian & Mahdi Bodaghi & Ramin Hamzehei & Liam Parr & Mohammad Fard & Bernard F. Rolfe, 2022. "3D-Printed Programmable Mechanical Metamaterials for Vibration Isolation and Buckling Control," Sustainability, MDPI, vol. 14(11), pages 1-17, June.
    • Handle: RePEc:gam:jsusta:v:14:y:2022:i:11:p:6831-:d:830738
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    Cited by:

    1. Yousif Saad Alshebly & Khameel B. Mustapha & Ali Zolfagharian & Mahdi Bodaghi & Mohamed Sultan Mohamed Ali & Haider Abbas Almurib & Marwan Nafea, 2022. "Bioinspired Pattern-Driven Single-Material 4D Printing for Self-Morphing Actuators," Sustainability, MDPI, vol. 14(16), pages 1-21, August.

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