A concept for a high authority shape morphing plate is described and demonstrated. The design incorporates an active back-plane comprising a Kagome truss, capable of changing the shape of a solid face, connected to the back-plane by means of a tetrahedral truss core. The two shape deformations to be demonstrated consist of hinging and twisting. The design is performed by a combination of analytic estimation and numerical simulation, guided by previous assessments of the Kagome configuration. It is shown that, while the structure is capable of sustaining large passive loads at low weight, the demonstrable authority is actuator-limited. The full potential of the system can only be realized by developing and incorporating superior actuators.
R-curves were measured for ferroelectric ceramic lead zirconate titanate (PZT) with two different grain sizes using the surface crack in flexure technique. Larger grain size resulted in a higher plateau value of the R-curve. This was consistent with the larger amount of ferroelastic switching observed from the stress/strain curve.
Conference Committee Involvement (8)
Behavior and Mechanics of Multifunctional Materials and Composites XI
26 March 2017 | Portland, Oregon, United States
Behavior and Mechanics of Multifunctional Materials and Composites X
21 March 2016 | Las Vegas, Nevada, United States
Behavior and Mechanics of Multifunctional Materials and Composites IX
9 March 2015 | San Diego, California, United States
Behavior and Mechanics of Multifunctional Materials and Composites VIII
10 March 2014 | San Diego, California, United States
Behavior and Mechanics of Multifunctional Materials and Composites VII
10 March 2013 | San Diego, California, United States
Behavior and Mechanics of Multifunctional Materials and Composites VI
12 March 2012 | San Diego, California, United States
Behavior and Mechanics of Multifunctional Materials and Composites V
7 March 2011 | San Diego, California, United States
Behavior and Mechanics of Multifunctional Materials and Composites IV
8 March 2010 | San Diego, California, United States
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