Accession Number : ADA263736

Title :   Three-Dimensional Elastic Stress Analysis in Materials With Many Inhomogeneities.

Descriptive Note : Final rept. 1 Apr 88-31 Dec 92,

Corporate Author : TUFTS UNIV MEDFORD MA DEPT OF MECHANICAL ENGINEERING

Personal Author(s) : Kachanov, Mark

Report Date : FEB 1993

Pagination or Media Count : 8

Abstract : The research effort was concentrated on micromechanics of brittle materials with multiple interacting defects, and on the impact of the defects on the overall (effective) properties. The work addressed the following problems: (1) Three-dimensional mechanics of crack interactions. (2) Three-dimensional mechanics of crack-microcrack interactions. (3) Relationship between fracturing of a brittle microcracking material and reduction of its effective stiffness. (4) Effective elastic properties of cracked solids and continuum characterization of crack arrays. (5) Mechanics of solids filled with compressible fluid. (6) Anisotropic materials with interacting cracks..... Brittle materials, Crack interactions, Microcrack interactions, Brittle fracturing, Cracked solids, Anisotropic materials, Micromechanics. Fracture.

Descriptors :   *ELASTIC PROPERTIES, *MATERIALS, ARRAYS, CRACKS, FLUIDS, IMPACT, INTERACTIONS, MECHANICS, MICROCRACKING, MICROMECHANICS, REDUCTION, SOLIDS, STIFFNESS, THREE DIMENSIONAL, BRITTLENESS, DEFECTS(MATERIALS), FRACTURE(MECHANICS), COMPRESSIBLE FLOW, ANISOTROPY.

Subject Categories : Elastomers and Rubber
      Laminates and Composite Materials
      Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE