RADIOGRAPHIC LAYER COUNTER FOR COMPOSITES

Award Information
Agency:
Department of Defense
Branch
Army
Amount:
$50,000.00
Award Year:
1987
Program:
SBIR
Phase:
Phase I
Contract:
n/a
Award Id:
6330
Agency Tracking Number:
6330
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
Po Box 9802-173, Austin, TX, 78766
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
RONALD E LARSEN
(512) 458-2522
Business Contact:
() -
Research Institute:
n/a
Abstract
THE ARMY BALLISTIC HELMET IS A COMPOSITE CONSISTING OF 19 RESINBONDED KELVAR. IT IS TYPICALLY LAID UP IN A PINWHEEL AND CROWN PLY CONFIGURATION. INADVERTANT OMISSION OF LAYERS OR UNDETECTED SHIFTING OF LAYERS DURING THE MOLDING PROCESSES CAN REDUCE THE EFFECTIVE NUMER OF FIBERS IN SOME AREAS OF A HELMET UNDER FABRICATION AND THEREBY IMPAIR THE STRENGTH PROPERTIES OF THE HELMET. CURRENTLY, VERIFICATION OF THE INTEGRITY OF THE HELMET IS BY BALLISTIC TESTING ON A SAMPLING BASIS. THIS PROJECT SEEKS TO DEVELOP A HAND HELD INSTRUMENT CAPABLE OF NONDESTRUCTIVELY (NDE) COUNTING THE NUMBER OF LAYERS OF KEVLAR AT ANY LOCATION IN THE HELMET. THE OBJECTIVE OF THE PHASE I EFFORT IS TO DEMONSTRATE EXPERIMENTALLY THAT A THROUGHTRANSMISSION GAMMA RADIOMETRY INSTRUMENT USING A LOW ENERGY EMITTER WOULD COUNT LAYERS WITH SUFFICIENT ACCURACY TO DETECT MISSION LAYERS. AVAILABILITY OF SUCH AN INSTRUMENT WOULD FACILITATE 100% NONDESTRUCTIVE EVALUATION OF HELMETS. THIS PHASE WOULD INCLUDE DESIGN, CONSTRUCTION, TESTING, AND FIELD EVALUATION OF LABORATORY INSTRUMENTS TO SERVE AS A BASIS IN DEVELOPMENT OF A FIELD GRADE INSTRUMENT FOR USE BY ACCEPTANCE AND MANUFACTURING PERSONNEL.

* information listed above is at the time of submission.

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