Accession Number : AD0855272

Title :   Strength Properties of Discontinuous Fiber Composites,

Corporate Author : MONSANTO RESEARCH CORP ST LOUIS MO

Personal Author(s) : Chen, Paul E.

Report Date : MAY 1969

Pagination or Media Count : 35

Abstract : The longitudinal strengths of unidirectional discontinuous fiber composites have been calculated based on the concept of perturbation effect and the distortional energy criterion, utilizing the finite-element method. The theoretical results thus obtained are compared with the experimental data as well as the results of shear lag analysis for tungsten-copper, boron-aluminum, glass-epoxy and boron-epoxy composites. Based on the Jackson-Cratchley equations, modified for discontinuous fibers, a formula is also proposed for calculating the strengths of randomly oriented discontinuous fiber composites. The results calculated from this formula are compared with the experimental data for aluminum oxide-aluminum-silicon and glass-epoxy composites. (Author)

Descriptors :   (*COMPOSITE MATERIALS, FLEXURAL STRENGTH), FIGHTER AIRCRAFT, TUNGSTEN, COPPER, BORON, ALIGNMENT, ALUMINUM, GLASS TEXTILES, STRESSES, MECHANICAL PROPERTIES, EPOXY RESINS, OXIDES, REINFORCING MATERIALS, FAILURE(MECHANICS), MATHEMATICAL ANALYSIS.

Subject Categories : Laminates and Composite Materials
      Solid State Physics

Distribution Statement : APPROVED FOR PUBLIC RELEASE