Accession Number : ADA304455

Title :   Statistical Characterization of the Fatigue Behavior of Composite Lamina.

Descriptive Note : Final technical rept. 1 May 77-31 Jan 79,

Corporate Author : GEORGE WASHINGTON UNIV WASHINGTON DC SCHOOL OF ENGINEERING AND APPLIED SCIENC E

Personal Author(s) : Yang, Jann N. ; Jones, Douglas L.

PDF Url : ADA304455

Report Date : 31 JAN 1979

Pagination or Media Count : 15

Abstract : This report summarizes the research that was performed under NASA Grant 1415, Statistical Characterization of the Fatigue Behavior of Composite Lamina, during the life of the grant May 1, 1977, to January 31, 1979. The technical monitors of this grant were Drs. G. L. Roderick and T. Kevin O'Brien of the NASA Langley Research Center, Hampton, Virginia 23665. Essentially all of the work that was included in the proposals has been completed. A theoretical model was developed to predict statistically the effects of constant and variable amplitude fatigue loadings on the fatigue life and residual strength of composite lamina. The model parameters were evaluated by one set of static and one set of fatigue tests and a number of verification test series were performed. Good agreement was found between predicted and actual test results. The results of this research have been or will be presented at three conferences and published in conference proceedings or in appropriate journals. jg p4

Descriptors :   *COMPOSITE MATERIALS, *LAMINATES, *STATISTICS, TEST AND EVALUATION, SYMPOSIA, FATIGUE LIFE, MODELS, PARAMETERS, RESEARCH FACILITIES, STRENGTH(MECHANICS), RESIDUALS, MONITORS, AMPLITUDE, STATICS, FATIGUE TESTS(MECHANICS).

Subject Categories : Laminates and Composite Materials
      Statistics and Probability
      Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE