Characterization of Damping Properties in 3D Printed Structures
Author
Gietl, Jenna; Vignola, Joseph; Sterling, John; Ryan, Teresa
Abstract
Current research on the effectiveness of a subordinate oscillator array (SOA) as a broadband
mechanical filter relies on adequate knowledge of the SOAs material properties. Recent studies
have shown a high sensitivity of these structures to disorder. A desire to produce large numbers
of arrays to test this sensitivity to disorder motivated a transition from metal to 3-dimensional
printed plastic SOAs. Irregularities associated with the curing process of the 3D printed
polymers, as well as a general inconsistency of material properties of plastics, in turn highlighted
the need for characterization of properties of 3D printed materials, especially those properties
related to damping. As part of this study, several 3D printed plastic cantilevers, varying in
material, printing technique, and printing orientation, are measured. Quantities of interest
include the Young’s modulus and density, as well as phenomenological properties, like the
quality factor of specific designs. An ASTM standard test method for property determination
is implemented with a laser Doppler vibrometer (LDV) to test each polymer. In addition to the
ASTM protocol, tests are conducted in vacuum to distinguish internal damping mechanisms
of the cantilever from external fluid mechanisms. Results are compared to both analytic and
numeric predictions and published theory.
Date
2018-12-01
Citation:
APA:
Gietl, Jenna, & Vignola, Joseph, & Sterling, John, & Ryan, Teresa. (December 2018).
Characterization of Damping Properties in 3D Printed Structures.
,
(),
-
. Retrieved from
http://hdl.handle.net/10342/8386
MLA:
Gietl, Jenna, and Vignola, Joseph, and Sterling, John, and Ryan, Teresa.
"Characterization of Damping Properties in 3D Printed Structures". .
. (),
December 2018.
June 06, 2024.
http://hdl.handle.net/10342/8386.
Chicago:
Gietl, Jenna and Vignola, Joseph and Sterling, John and Ryan, Teresa,
"Characterization of Damping Properties in 3D Printed Structures," , no.
(December 2018),
http://hdl.handle.net/10342/8386 (accessed
June 06, 2024).
AMA:
Gietl, Jenna, Vignola, Joseph, Sterling, John, Ryan, Teresa.
Characterization of Damping Properties in 3D Printed Structures. .
December 2018;
():
.
http://hdl.handle.net/10342/8386. Accessed
June 06, 2024.
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