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Dwyer FINAL 12 16 2021 with cert.pdf (4.79 MB)

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Spatially-Graded Elastomeric Lattice Structures with Integrated Electronic Sensors

Dwyer, Charles M
http://orcid.org/0000-0003-3394-9776
http://rave.ohiolink.edu/etdc/view?acc_num=ysu1639735292695457

Abstract Details

2021, Master of Science in Engineering, Youngstown State University, Department of Civil/Environmental and Chemical Engineering.
Additive manufacturing has enabled the design and construction of complex structures with intricate and tailored features like functionally-graded lattices. Lattices can be created with varying strut densities, designs, and even materials – all of which change the model’s capabilities for specific scenarios. Different lattices are used in protective padding to mitigate impacts seen in sports or military, packaging to protect goods during transit, and in general consumer products like footwear for midsole customizability. In this research, different elastomeric materials were used to create samples to compare impact absorption capability. These materials included Carbon SIL30, Ultimaker TPU, EOS TPE 300, FormLabs Rebound, NinjaTek NinjaFlex, FormLabs Elastic 50A, and FormLabs Flexible 80A. Combinations of these samples were also studied, producing results in between those of the two separate materials. Lattices can be fused in such a way that optimal responses are produced to soften an impact or to quickly dissipate the energy. An ionic liquid sensor from the University of Akron was placed inside a lattice designed with a pocket for the sensor during the printing process. The design and customizability of the lattice allows wires to be connected to the carbon nanotube traces and into a voltage source. Thus, a flexible impact sensor was seamlessly integrated into an additively manufactured lattice. A Bluetooth-enabled CC2650 microcontroller was used to relay data to a remote connection, paving the way for live data collection and analysis to determine the severity of impact. Due to increased data collection and customizability, many industries can be made safer and more comfortable for workers, soldiers, athletes, and consumers.
Pedro Cortes, PhD (Advisor)
Eric MacDonald, PhD (Committee Member)
Frank Li, PhD (Committee Member)
103 p.
Chemical Engineering; Materials Science; Polymers; Remote Sensing
Elastomer; Lattice; Functional Grading; Flexible Sensors

Recommended Citations

Citations

  • Dwyer, C. M. (2021). Spatially-Graded Elastomeric Lattice Structures with Integrated Electronic Sensors [Master's thesis, Youngstown State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=ysu1639735292695457

    APA Style (7th edition)

  • Dwyer, Charles. Spatially-Graded Elastomeric Lattice Structures with Integrated Electronic Sensors. 2021. Youngstown State University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=ysu1639735292695457.

    MLA Style (8th edition)

  • Dwyer, Charles. "Spatially-Graded Elastomeric Lattice Structures with Integrated Electronic Sensors." Master's thesis, Youngstown State University, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=ysu1639735292695457

    Chicago Manual of Style (17th edition)

ysu1639735292695457
137
© 2021, all rights reserved.
This open access ETD is published by Youngstown State University and OhioLINK.