Accession Number : ADA113128

Title :   Elevated Temperature Behavior of Metal-Matrix Composites.

Descriptive Note : Final rept. 1 Apr 79-30 Sep 81,

Corporate Author : MATERIALS SCIENCES CORP SPRING HOUSE PA

Personal Author(s) : Hashin,Zvi ; Humphreys,E A

PDF Url : ADA113128

Report Date : Nov 1981

Pagination or Media Count : 111

Abstract : A three fold approach is utilized to develop three-dimensional temperature dependent plasticity relations for unidirectional metal-matrix composites. First, two elasto-plastic boundary value problems are formulated for a typical repeating element in a hexagonal array of fibers. This is used to numerically determine temperature dependent stress-strain relations for loadings such as transverse tension, transverse shear, and axial shear. Next, global plasticity considerations are used to construct isothermal, incremental stress-strain relations for a transversely isotropic fiber composite in terms of the known one-dimensional stress-strain relations. Finally, these results are extended to include changes in temperature resulting in a set of effective stress-strain relations incremental in stress, strain, and temperature. (Author)

Descriptors :   *COMPOSITE MATERIALS, *MATRIX MATERIALS, *METALS, MECHANICAL PROPERTIES, HIGH TEMPERATURE, THERMAL EXPANSION, THERMOMECHANICS, ISOTHERMS, STRESS STRAIN RELATIONS, NUMERICAL ANALYSIS, UNIDIRECTIONAL, BEHAVIOR, ONE DIMENSIONAL, THREE DIMENSIONAL, STRESSES, SHEAR PROPERTIES, FIBER REINFORCEMENT, ALUMINUM ALLOYS, BORON, CARBON, GRAPHITE

Subject Categories : Laminates and Composite Materials
      Metallurgy and Metallography
      Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE