Accession Number : ADA193144

Title :   Damping Characteristics of Metal Matrix Composites.

Descriptive Note : Quarterly letter progress rept. no. 7, 11 Aug-9 Dec 87,

Corporate Author : MARTIN MARIETTA ASTRONAUTICS GROUP DENVER CO

Personal Author(s) : Misra, Mohan S

PDF Url : ADA193144

Report Date : 09 Dec 1987

Pagination or Media Count : 7

Abstract : Objectives of Present Research: Metal matrix composites (MMC) with enhanced material damping can be potential structural materials to improve significantly the stability, control and reliability of space structures. Objectives of this investigation are: - Identify the mechanisms and sources of damping in continuous fiber reinforced MMC (Gr/Al and Gr/Mg) using in situ characterization techniques. - Determine the role of microstructural parameters (fiber volume, fiber orientation, interfiber spacing, grain size, precipitate morphology) in damping. - Define the role of the fiber matrix interface in damping. - Develop high damping structural materials for space applications.

Descriptors :   *DAMPING, *METAL MATRIX COMPOSITES, CONSTRUCTION MATERIALS, FIBERS, GRAIN SIZE, MATERIALS, MICROSTRUCTURE, MORPHOLOGY, ORIENTATION(DIRECTION), PARAMETERS, PRECIPITATES, RELIABILITY, SOURCES, SPACE TECHNOLOGY, VOLUME

Subject Categories : Laminates and Composite Materials
      Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE