Accession Number : AD0759902

Title :   The Use of Experimental Design and Computerized Data Analysis in Elastomer Development Studies.

Descriptive Note : Interim rept. 1 Dec 71-1 Aug 72,

Corporate Author : ARMY MOBILITY EQUIPMENT RESEARCH AND DEVELOPMENT CENTER FORT BELVOIR VA

Personal Author(s) : Gatza,Paul E. ; McMillan,Robert C.

Report Date : FEB 1973

Pagination or Media Count : 30

Abstract : The rapidly expanding field of computerized data reduction has produced many special purpose programs and routines designed to perform recurring calculations involving complex mathematical techniques such as variance and least squares regression analysis. These basic techniques, when combined with the theory of experimental design, can be employed by the rubber compounder and can result in the derivation of extensive meaningful data from a minimum amount of actual compounding and physical testing. The report describes a computer program designed specifically to: (a) select the proper experimental design for any matrix of up to five compounding variables, each at up to five levels, according to the principle of defining contrasts; (b) analyze physical test data according to the method of least squares regression; (c) determine the relative significance of compounding factors through use of the F Ratio Tests; (d) predict the properties of all untested compounds derived from the design matrix; and (e) scan within the limits of the compounding variables to predict the formulation and physical properties of compounds conforming to a given set of specification or performance requirements. (Author)

Descriptors :   (*ELASTOMERS, DATA PROCESSING), PLASTICIZERS, MECHANICAL PROPERTIES, COMPUTER PROGRAMS, EXPERIMENTAL DESIGN, REGRESSION ANALYSIS

Subject Categories : Elastomers and Rubber
      Computer Programming and Software

Distribution Statement : APPROVED FOR PUBLIC RELEASE