Adaptive Materials and Structures A Workshop Report (2013) / Chapter Skim
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2 First Day
2 First Day
Pages 3-8
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From page 3... ...
Additional practical applications in development or under consideration include security inks, reconfigurable antennas, tunable filters and lenses, camouflage systems and medical diagnostics. While most technical demonstrations of adaptive materials based on anisotropic responsive microparticles have been in the liquid phase, he stated that it is also possible to structure solid materials and membranes with sufficient freedom of movement to take advantage of this approach.
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From page 4... ...
Using an example from his own laboratory, Dr. Tsukruk stated that the unique ability of snakes to detect small temperature changes as part of their infrared detection capabilities was traced to a special organ in which thermal expansion of air pockets leads to deformation of a membrane, which is detected in downstream cell signaling.
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From page 5... ...
He opened his presentation by outlining the areas that he would discuss. They included Morphing Aircraft, Solar Powered Aircraft, Structural Monitoring, Energy Harvesting, Origami Structures and Multifunctional Hybrids.
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From page 6... ...
The goals were to increase battery life, but it was found that only small amounts of useable electrical energy were produced. He then discussed concepts some ten to fifteen years out, including origami structures actuated by smart materials, autonomous behavior in structural and sensor systems, threat reduction systems that react to incoming threats by changing shape, and multifunctional, and functionally graded, hybrid composites.
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From page 7... ...
They are potentially useful in actuators that may be designed to change shape, stiffness, position, natural frequency of vibration, and other mechanical characteristics in response to temperature or electromagnetic fields. He stated that magnetic shape memory alloys are ferromagnetic materials that exhibit tensile strain (with a measurable relative physical extension that can be as large as 10%)
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From page 8... ...
Her presentation reviewed developments in macro-scalable integrated thermal management, self-healing structures based on micro-vascular concepts, meta materials for acoustic and EMI shielding, soft materials including shape memory polymers and variable stiffness composites.
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