Accession Number : ADA306047

Title :   Failure Criteria for Filamentary Composites.

Descriptive Note : Technical note,

Corporate Author : NATIONAL AERONAUTICS AND SPACE ADMINISTRATION WASHINGTON DC

Personal Author(s) : Chamis, Christos C.

PDF Url : ADA306047

Report Date : AUG 1969

Pagination or Media Count : 33

Abstract : A two-level, linear, semiempirical theory for a failure criterion in described. The theory predicate the strength behavior of undirectional filamentary composites under uniaxial and combined stress from basic constituent material properties and fabrication process considerations. Applications of the theory to several filament-non-metallic matrix composite, are presented and comparisons are made with experimental data. These results show good agreement between theory and experiment. Simple and combined strength envelopes are generated to illustrate the versatility of the theory and to point out problem areas in experimental work and design. (An)

Descriptors :   *STRESS ANALYSIS, *FIBER REINFORCED COMPOSITES, *MATRIX MATERIALS, *FAILURE(MECHANICS), STRESS STRAIN RELATIONS, MATHEMATICAL MODELS, LOAD DISTRIBUTION, TENSILE STRENGTH, TENSILE STRESS, SHEAR MODULUS, GLASS, CORRELATION, MATHEMATICAL PREDICTION, SHEAR STRESSES, RESIDUAL STRESS, TENSION, FILAMENTS, EPOXY COMPOSITES, COMPRESSIVE STRENGTH, AXIAL LOADS, TRANSVERSE, SHEAR STRENGTH.

Subject Categories : Laminates and Composite Materials
      Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE