ASSESSMENT OF CT AS AN NDE METHODOLOGY FOR REINFORCED PHENOLIC NOZZLES

Award Information
Agency: Department of Defense
Branch: Army
Contract: N/A
Agency Tracking Number: 10017
Amount: $60,313.00
Phase: Phase I
Program: SBIR
Awards Year: 1989
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
DUNS: N/A
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Richard L Hack
 (714) 540-8900
Business Contact
Phone: () -
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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