A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Liquid Armor With Shear Thickening Fluid
Liquid armor created from Kevlar ballistic fabric soaked in a shear thickening fluid will be offered as products by Armor Holdings by the end of this year. The basic principles should be familiar to Technovelgy readers; the research for the product was detailed in Liquid Armor In Two Flavors: Shear Thickening and Magnetorheological two years ago.
(Liquid Armor: Kevlar soaked in shear thickening fluid)
Shear thickening fluids have been known for many years; cornstarch and water can be used to demonstrate the basic principle. Under unstressed conditions, it flows slowly like a viscous liquid; when struck, it hardens in a millisecond. They are also called "dilatant" fluids.
The thickening of the fluid spreads the force of impact over a wider area; it can prevent a bullet, knife point or bomb fragment from penetrating.
According to Norman Wagner, who with Eric Wetzel lead the teams that developed liquid armor, the nanoparticle-based liquid is "intercalated" with the Kevlar fibers; it's not just a vest soaked in fluid. The treatment has the effect of preventing the fibers from spreading apart upon impact. Armor Holdings acquired the patent rights to liquid armor materials last February.
Wagner provided some insight in discussing the research in an earlier interview in 2004:
"We would first like to put this material in a soldier's sleeves and pants, areas that aren't protected by ballistic vests but need to remain flexible. We could also use this material for bomb blankets, to cover suspicious packages or unexploded ordnance. Liquid armor could even be applied to jump boots, so that they would stiffen during impact to support Soldiers' ankles."
The concept of liquid armor, armor that was flexible when necessary but which turns rigid upon impact, was explored by science fiction writers long before its appearance as a product.
In his 1968 novel Neutron Star, writer Larry Niven thought of flexible armor suits:
He was weaponless, but his suit was a kind of defense. No projectile short of a fast meteorite could harm him. Like a silicone plastic, the pressure suit was soft and malleable under gentle pressures, such as walking, but instantly became rigid all over when something struck it...
(Read more about Larry Niven's flexible armor suit)
A more recent reference from sf author Neal Stephenson, from his 1992 novel Snow Crash provides insight into the practical use of such a product, as well as a cool (and trademarkable) name:
Where his body has bony extremities, the suit has sintered armorgel; feels like gritty jello, protects like a stack of telephone books.
(Read more about sintered armorgel)
Read more about shear thickening fluids; take a look at the reader comments from the previous article. For more shear thickening fun, take a look at Skiers Get d3o-Based 'Impact Suits'. See also Body Armor Fit for a Superhero from Business Week for a different perspective; despite the obvious military applications, Armor Holdings will probably first introduce Liquid Armor as a product for prison guards.
Scroll down for more stories in the same category. (Story submitted 8/2/2006)
Follow this kind of news @Technovelgy.
| Email | RSS | Blog It | Stumble | del.icio.us | Digg | Reddit |
you like to contribute a story tip?
Get the URL of the story, and the related sf author, and add
Comment/Join discussion ( 9 )
Related News Stories -
Liquid Body Armor For TALOS Exoskeleton
'... instantly became rigid all over when something struck it...' - Larry Niven, 1966.
DIY Taser-Proof Clothing
'His suit-shield sucked in the energy and discharged it...'- Philip K. Dick, 1954.
Look Great In Your Garrison Bespoke Bulletproof Suit
'McKie longed for his armored clothing…'- Frank Herbert, 1977.
Bionic Body Armor Makes You Dodge Bullets
Fascinating patent idea by IBM turns everyone - yes, everyone - into a bullet-dodging Neo.
Technovelgy (that's tech-novel-gee!)
is devoted to the creative science inventions and ideas of sf authors. Look for
the Invention Category that interests
you, the Glossary, the Invention
Timeline, or see what's New.
Robot Gas Station Attendant Fills Tank - Which I Saw In 1962
'... he waited for the robotrix attendant to finish fueling up his ship.'
Cheap Paper-Based Sensors Let You Snoop For Pesticides
'...the unobtrusive inspections with tiny remote-cast snoopers.'
I Am Alarmed By Efforts To Teach AIs And Robots To Hate
'LET ME TELL YOU HOW MUCH I'VE COME TO HATE YOU SINCE I BEGAN TO LIVE.'
MXenes - Atomic-Thin Metal Sheets Now Easier To Make
'...a rolled-up sheet of a thin, dark metal strange to them.'
Do We Still Need Orbiting Factories?
'... his contract with Space Industries required him to work summers in their orbital factory complex.'
Space Weather Forecasters Surprised By Strong Solar Storm
'Space-weather men had been placed at their disposal...'
JWST Finds New World Of Turbulent Silicate Clouds
'THIS is Ceti Alpha V!'
3D Printed Cheesecake Not Quite Food Replicator Quality
With each successive print, our model needed to incorporate more structural ingredients to minimize print failures.
Spectroscopic Analysis Of DART Impact Debris Cloud (SF Prediction)
'... Wendis stared thoughtfully at the brilliant lines on the spectroscope screen.'
Modern App Provides Video Technology From Bradbury's 'Fahrenheit 451'
'A special spot-wavex scrambler also caused his televised image, in the area immediately about his lips, to mouth the vowels and consonants beautifully.'
Win $250K By Reading Ancient Scrolls Carbonized By Vesuvius
'... it was as if the upper part had been removed, like a cut deck of cards.'
Toy-Like Robot Well-Being Coaches Are The Best
Sumomo will get those office workers into good shape!
AI-Trained Snack App Avatar Goes On Dates For You
'... who let their handbag computers carry all the conversation.'
M-Dwarf Stars May Not Have Habitable Planets
'Thus it came about that the search for a planetiferous sun near a white dwarf star was not unduly prolonged...'
Too Soon To Doom Lunar Farside Observatories
'Earth never shone there, but life was good.'
Amitabh Bachchan Wins Personality Protection
'He led me down the Hall of Portraits to the ego-likeness of the Duke Leto Atreides.'
More SF in the News Stories
More Beyond Technovelgy science news stories