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EMorris_OobleckPresentation
1. 4.S52 | Shape and Material | Spring 2013
Eric Randall Morris
Non Newtonian Fluids : Oobleck
2. 4.S52 | Shape and Material | Spring 2013
Eric Randall Morris
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Eric Randall Morris
A b s t r a c t
A non newtonian fluid composed of a suspensi-
non of one part water to two parts corn starch is a
demonstration of a shear thickening fluid, mean-
ing the greater the amount of stress the material
undergoes the greater the viscosity increases.
Simply meaning the more force acting on
the liquid body, the more is acts as a solid.
Also known as a dilatant, this fluid’s properties are
qualified by particle size, shape, and distribution, all
ofwhicharegovernedbyforceoveranintervaloftime.
The faster the force is applied, the greater of
observable reaction. The thickening reaction
therefore relies on both a quick stress force and
significant amount of force entering the
system to act as a non newtonian fluid.
Current applications of these procedures are seen
through industries where either friction or force
is needed to inhibit or slow movement; traction
control systems and braking mechanisms, as well
as body armor applications are two such areas.
4. 4.S52 | Shape and Material | Spring 2013
Eric Randall Morris
equilibrium thickened
acts as a liquid acts as a solid
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material variables constant variables operated variables
viscosity viscosity
time time
force force
shape shape
particle size particle size
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Eric Randall Morris
if the end goal is to manufacture shape from this material through the use of sound
intervention, how can one meaningfully test and retest reliable
geometry, form making techniques, and explore material quality?
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three density types five sound bytes
01 04 07 10 13 02 05 08 11 14 03 06 09 12 15
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01 02 03
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04 05 06
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07 08 09
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10 11 12
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13 14 15
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Eric Randall Morris
to develop a drying / molding procedure for casted, fluid suspensions; with an emphasis on lessening
material usage, reducing total weight, lowering density, and enhancing the internal strengths.
design intent
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Eric Randall Morris
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Eric Randall Morris
sound particle travel
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Eric Randall Morris
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Eric Randall Morris
observed reactions
equilibrium thickened
sound wave
fluid suspension
internal thickening
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Eric Randall Morris
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Eric Randall Morris
potential ideal shape
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Eric Randall Morris
rippled surface
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Eric Randall Morris
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parametric variables
particle size
sound wave
amplitude + frequency
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16 18 20 22 24 17 19 21 23 25
two new suspensions
silicate based + aggregate based
five sound bytes
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16 17
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10 seconds 20 seconds 30 seconds 40 seconds 50 seconds 60 seconds
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18 19
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20 21
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22 23
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24 25
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after analyzing various fluid suspensions, the realization that these systems of interaction could be
understood most intuitively at the particle level became apparent. which led me to conceptualizing a
weighted parametric scheme to document the extents of my observations.
parametric schema
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Eric Randall Morris
parametric schema
particle thickening
waveform spectrum
amplitude [time]
frequency[hertz]
distance[meters]
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Eric Randall Morris
the application of sound to non newtonian fluid suspensions, such as concrete, types of silicates, and
plasters, has the potential to yield lighter weight units by using less material than prior prototypes.
by scattering, moving, jumping, and reacting to attuned frequencies, the poured substance would
either disperse and coat the interior of a mold to create a shell or form a lattice like network that would
be bounded by the contraints of the mold.
both drying procedures would achieve a lighter weight and less dense volume. as for sturctural
integrity? that question will have to wait until next semester!
future applications
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Eric Randall Morris
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Eric Randall Morris
Thank You!