Accession Number : AD0774890

Title :   The Mechanical Properties of Metal Matrix Composites Subjected to Cyclic Temperature Changes.

Descriptive Note : Annual rept. 1 Jul 72-30 Jun 73,

Corporate Author : TENNESSEE UNIV SPACE INST TULLAHOMA

Personal Author(s) : Wright,Maurice A.

Report Date : AUG 1973

Pagination or Media Count : 105

Abstract : The mechanical properties of 6061 aluminum reinforced with fibers of stainless steel, 34 v/o SiC, 27 v/o boron and 45 v/o boron cross-plied 0/90 degrees, were determined in the as-received condition and after thermal fatigue. The properties investigated included longitudinal and transverse strength and modulus, major and minor Poisson's ratio, the density and the fracture toughness. It was concluded that the nature of the damage produced by exposing these materials to cyclic temperature variations consisted of voids and cracks that were solely connected with the matrix or matrix-fiber bond.

Descriptors :   *Fiber reinforced composites, Aluminum alloys, Stainless steel, Composite materials, Matrix materials, Metals, Cycles, Fatigue, Thermal fatigue, Mechanical properties, Wire, Failure(Mechanics), Boron, Silicon carbides

Subject Categories : Laminates and Composite Materials

Distribution Statement : APPROVED FOR PUBLIC RELEASE