ASSESSMENT OF CT AS AN NDE METHODOLOGY FOR REINFORCED PHENOLIC NOZZLES

Award Information
Agency:
Department of Defense
Branch
Army
Amount:
$60,313.00
Award Year:
1989
Program:
SBIR
Phase:
Phase I
Contract:
n/a
Agency Tracking Number:
10017
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
Pda Engineering
2975 Redhill Ave, Costa Mesa, CA, 92626
Hubzone Owned:
N
Socially and Economically Disadvantaged:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
Richard L Hack
(714) 540-8900
Business Contact:
() -
Research Institution:
n/a
Abstract
CURRENT NDE METHODS ARE LARGELY DEPENDENT UPON QUALITATIVE INDICATORS. TOMOGRAPHIC NDE METHODS OFFER THE POTENTIAL OF DEVELOPING QUANTITATIVE ACCEPT/REJECT CRITERIA. COMPUTED X-RAY TOMOGRAPHY (CT) CAN DEFINE MATERIAL CHARACTERISTICS, SUCH AS DENSITY, ON A SPATIALLY-RESOLVED BASIS. THE DEVELOPMENT OF SENSITIVE MATERIAL PROPERTY-DENSITY RELATIONSHIPS COMBINED WITH SOLID MODELING AND FINITE ELEMENT ANALYSIS METHODS ALLOW THE CT DENSITY MEASUREMENT CAPABILITY TO BE EMPLOYED IN A QUANTITATIVE, PREDICTIVE MANNER. CT MEASUREMENTS ON CAARBON-PHENOLIC WILL BE CORRELATED WITH PHYSICAL DENSITY MEASUREMENTS TO ESTABLISH CT DENSITY CALIBRATION STANDARDS. MATERIAL PROPERTY-DENSITY MODELS WILL BE DEVELOPED BASED ON AVAILABLE DATA AND A LIMITED TEST PROGRAM. A TWO-DIMENSIONAL CARBON-PHENOLIC COMPONENT WILL BE SUBJECTED TO CT INSPECTION AND SUBJECTED TO A FINITE ELEMENT STRUCTURAL ANALYSIS BASED ON CT-DEDUCED MATERIAL PROPERTIES. MECHANICAL TESTING WILL PROVIDE EVALUATION OF PREDICTIVE CAPABILITIES. THE CAPABILITIES OF DUAL ENERGY CT AND NMR TO DETECT FOREIGN MATERIAL CONTAMINATION (I.E., WATER) WILL BE ADDRESSED.

* information listed above is at the time of submission.

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