Transcript smart_materials_powerpoint

smart materials
wired _ embedded
arch 5313 _ Digital Assemblages
Instructor _ David Newton
Petro N. Megits _ gdII
Fall 2007
Smart materials _ materials that have one or more properties that can be
significantly altered in a controlled fashion by external stimuli, such as stress,
temperature, moisture, pH, electric or magnetic fields.
- Wikipedia
Transmaterial
Blaine Brownell – leader in exposing people to smart and ecologically responsive materials.
Sensitile
Spherical Photovoltaic systems
reuse of materials
http://www.poptech.org/popcasts/?lang=&viewcastid=34
Wired / mechanical systems _ current systems of interactive / reactive / sensing
architectural built components. A defined system of
responses to stimulus.
Embedded intelligence systems _ the idealized concept of intelligent materials,
where the material begins to define its parameters
from a bottom up self-organizing system. Nonprogrammable response to stimulus.
Wired / mechanical systems _
the living _ http://www.thelivingnewyork.com/
living glass – http://www.thelivingnewyork.com/lg.htm
http://www.thelivingnewyork.com/Images/PopTech06_Brownell-short.mov
river glow – http://www.thelivingnewyork.com/rg.htm
show movie clip
Wired / mechanical systems _
Nimish Biloria @ TU Delft, Netherlands
Bamboostic Muscle Project – muscle actuators regulated by program
responding to people and bamboo
in the vicinity.
http://youtube.com/watch?v=0uDWdyD5AYM
Embedded intelligence systems _
Smart dust - The goal of the Smart Dust project is to build a self-contained, millimeter-scale
sensing and communication platform for a massively distributed sensor network. This device will be
around the size of a grain of sand and will contain sensors, computational ability, bi-directional wireless
communications, and a power supply, while being inexpensive enough to deploy by the hundreds.
Anti-smart dust _ http://youtube.com/watch?v=fyM8zgYt30w
Piezoelectric - materials that produce a voltage when stress is applied.
http://youtube.com/watch?v=p3mj83qfO_U
Self repairing plastics - microcapsules, which were used by Scott White of the University of
Illinois to create a self-repairing plastic. His group inserted tiny beads of "healing agent" into a material.
The agent is activated by impact, like a glow stick, to patch up any fractures.
Embedded intelligence systems _
Shape memory alloys - Thermo responsive materials where deformation can be
induced and recovered through temperature changes. One way and two way shape memory.
http://youtube.com/watch?v=oakDTbZHdks
Halochromic - materials are commonly materials that change their color as a result of changing
acidity. One suggested application is for paints that can change color to indicate corrosion in the metal
underneath them.
Chromogenic systems - change color in response to electrical, optical or thermal
changes. These include electrochromic materials, which change their color or opacity on the
application of a voltage (e.g. liquid crystal displays), thermochromic materials change in color
depending on their temperature, and photochromic materials, which change color in response to
light - for example, light sensitive sunglasses that darken when exposed to bright sunlight.