About this Abstract |
Meeting |
MS&T21: Materials Science & Technology
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Symposium
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High Entropy Materials: Concentrated Solid Solutions, Intermetallics, Ceramics, Functional Materials and Beyond II
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Presentation Title |
The Dynamic and Sensing Performance of 3D Printed Functionally Graded Elastomeric Lattice Structures |
Author(s) |
Charles M. Dwyer, Joao Garretto, Ronald J. Yarwood, Jae-Won Choi, Eric MacDonald, Pedro Cortes, Gina E. Morrison |
On-Site Speaker (Planned) |
Charles M. Dwyer |
Abstract Scope |
Additive manufacturing has enabled the creation of functionally graded complex lattice structures that had not been possible to construct before. When made of elastomeric polymers, these lattices can be used as protective padding in place of conventional foams. New methods of manufacturing also allow the materials themselves to vary within structures, leading to more customizable impact force and displacement profiles. Functionally graded materials have been shown to absorb energy more efficiently than non-graded materials, leading to decreased risk of personal injury. The use of these graded lattice paddings includes industries such as military, emergency services, and sports, specifically in National Football League helmets. The method of construction of these materials also allows for the incorporation of electronic sensors within the structure, without interrupting the lattice design. Integration of sensors inside helmet protection will wirelessly transmit data about its impacts in near real-time and can lead to safer sports in general. |