Accession Number : ADA311346

Title :   Effects of Geometric and Material Parameters on Behavior of Fiber Composites.

Descriptive Note : Final rept. 1 Jun 92-14 Dec 95,

Corporate Author : NORTHWESTERN UNIV EVANSTON IL

Personal Author(s) : Daniel, I. M. ; Cordes, R. D.

PDF Url : ADA311346

Report Date : 15 MAY 1996

Pagination or Media Count : 11

Abstract : The objective of this investigation is to study the effects of constituent properties (fiber, matrix, interphase) and geometric parameters (fiber volume ratio, fiber packing) on the overall behavior of brittle matrix composites. Four model composite materials were studied, a silicon carbide fiber/barium borosilicate glass system, a polyvinyl alcohol fiber/epoxy system, and two optic fiber/epoxy systems. Single fiber tests were used to characterize interfacial properties. Multiple fiber composite models were made and tested and failure mechanisms observed and analyzed.

Descriptors :   *STRESS STRAIN RELATIONS, *FIBER REINFORCED COMPOSITES, *MATRIX MATERIALS, *FAILURE(MECHANICS), MATHEMATICAL MODELS, LOAD DISTRIBUTION, STRESS ANALYSIS, TENSILE STRESS, CRACK PROPAGATION, BRITTLENESS, GLASS FIBERS, RESIDUAL STRESS, EPOXY COMPOSITES, MICROMECHANICS, SILICON CARBIDES, BARIUM COMPOUNDS, SHEAR STRENGTH.

Subject Categories : Laminates and Composite Materials
      Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE