Accession Number : AD0766765

Title :   Predicting Pavement Performance Using Time-Dependent Transfer Functions.

Descriptive Note : Technical rept. Nov 70-Feb 73,

Corporate Author : PURDUE UNIV LAFAYETTE IND

Personal Author(s) : Boyer,R. E. ; Harr,M. E.

Report Date : JUL 1973

Pagination or Media Count : 223

Abstract : A technique was developed to predict the performance of a pavement system subjected to dynamic load inputs. Transfer function theory was extended in connection with a decretized convolution procedure to define a pavement's time-dependent transfer functions. The transfer functions were calculated from data measured during full scale tests in a service environment. Subsequently, a method to predict deflection output responses was developed for use in conjunction with the calculated time-dependent transfer functions. It was concluded that the characteristics of a flexible pavement could be represented by a series of transfer functions obtained from dynamic tests using practically any prime mover. It was also concluded that the transfer functions contained certain isolated descriptors which were related to the aircraft gear configurations, and other descriptors which were only indicative of the pavement's behavior. (Modified author abstract)

Descriptors :   (*PAVEMENTS, LOADS(FORCES)), (*LANDING FIELDS, PAVEMENTS), ELASTIC PROPERTIES, PLASTIC PROPERTIES, VISCOELASTICITY, TRANSFER FUNCTIONS, REGRESSION ANALYSIS, MATHEMATICAL MODELS, COMPUTER PROGRAMS

Subject Categories : Terminal Flight Facilities

Distribution Statement : APPROVED FOR PUBLIC RELEASE