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Foundations for Smart Metamaterials by Liquid Metal Digital Logic and Magnetoelastic Properties Control

Abstract Details

2020, Master of Science, Ohio State University, Aero/Astro Engineering.
This research investigates the strategic design of elastomeric metamaterials to induce controllable mechanical properties and sensing capabilities. Elastomers have been utilized in the creation of flexible electronics due to the inherent ability to nondestructively deform. When a malleable, conductive material, such as liquid metal, is incorporated into an elastomeric host structure, a flexible electronic material is created that may maintain electrical conductivity during high strain loading. While research has uncovered ways of utilizing deformation of flexible electronics to achieve functionality such as resistance change and self-healing, there are few studies that explore mechanical and electrical properties of such systems when subjected to compression. The material responses may be made more versatile by exploiting principles of elastic metamaterials. Such metamaterials contain void architectures that create elastic truss networks capable of reversible buckling, and have shown ability to provide impact and vibration attenuation capabilities. Methods of controlling the mechanical properties of these metamaterials, such as functionally grading layers of beams, or incorporating magnetic microparticles into the elastomer matrix to modify the stiffness in real-time with an externally applied magnetic field, have been explored. Yet, research is lacking on the interplay of design parameters and magnetic field that result in mechanical behaviors. Motivated by these needs, this research explores foundations of new generations of smart metamaterials by establishing methods for sensing and control of material behavior. A new approach to liquid metal-based sensing in elastomeric materials is built up, leveraging mechanical deformation to induce a digital logic sensing modality. Then, the interplay of mechanical design and magnetoelasticity is explored for metamaterials with properties governed by ferromagnetic particle filler and the presence of magnetic field. The findings advance the state-of-the-art of smart metamaterials, and may be combined in future research endeavors to create self-sensing, self-tuning, autonomous material systems.
Ryan Harne, Dr. (Advisor)
Marcelo Dapino, Dr. (Advisor)
67 p.

Recommended Citations

Citations

  • Nick, Z. H. (2020). Foundations for Smart Metamaterials by Liquid Metal Digital Logic and Magnetoelastic Properties Control [Master's thesis, Ohio State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=osu1587669303938667

    APA Style (7th edition)

  • Nick, Zachary. Foundations for Smart Metamaterials by Liquid Metal Digital Logic and Magnetoelastic Properties Control. 2020. Ohio State University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=osu1587669303938667.

    MLA Style (8th edition)

  • Nick, Zachary. "Foundations for Smart Metamaterials by Liquid Metal Digital Logic and Magnetoelastic Properties Control." Master's thesis, Ohio State University, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=osu1587669303938667

    Chicago Manual of Style (17th edition)