Accession Number : ADA326199

Title :   Problem of Instability and Scale in Media with Microstructure.

Descriptive Note : Final rept. Sep 94-Aug 96,

Corporate Author : MICHIGAN UNIV ANN ARBOR DEPT OF AEROSPACE ENGINEERING

Personal Author(s) : Triantafyllidis, Nicolas

PDF Url : ADA326199

Report Date : 27 SEP 1996

Pagination or Media Count : 35

Abstract : Report covers research activities of principal investigator in relation to above project. Effects of scale are carefully quantified for media with periodic microstructure in which the scale parameter is the unit cell site over the representative volume dimension. Failure surfaces are defined for idealized' truss-like composites and their dependence on scale has been explored. Concepts developed have been subsequently applied to aluminum honeycombs. The technical part of the work is reported in four papers. The present final report includes the final presentation given at AFOSR on September 13, 1996 and other relevant information.

Descriptors :   *MICROSTRUCTURE, *COMPOSITE MATERIALS, *FAILURE, *SCALE, *MEDIA, *INSTABILITY, STRESSES, SIZES(DIMENSIONS), PARAMETERS, CELLS, FIBER REINFORCED COMPOSITES, SITES, COMPOSITE STRUCTURES, STRAIN(MECHANICS), SURFACES, AEROSPACE SYSTEMS, ALUMINUM, TRUSSES, HONEYCOMB STRUCTURES.

Subject Categories : Laminates and Composite Materials
      Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE