Accession Number : ADA329653

Title :   Coupled Fields and Mechanics in Material Space

Descriptive Note : Final technical rept. 1 Aug 94-30 Sep 95

Corporate Author : STANFORD UNIV CA DEPT OF MECHANICAL ENGINEERING

Personal Author(s) : Hermann, George

PDF Url : ADA329653

Report Date : 01 OCT 1995

Pagination or Media Count : 8

Abstract : During the period covered by this report, significant advances in several diverse areas have been achieved as outlined below under separate headings: (1) Damage Mechanics, (2) Functionally gradient Materials with Defects, (3) Problems in Heterogenization and (4) Eshelby's Energy Momentum Tensor. It is experimentally observed that brittle materials and structural elements fabricated with them, undergo development of damage (growing microcracks, microvoids, grain boundary sliding, etc.) as the severity of environment (e.g. loads) increases, and before gross fracture sets in. The heterogenization technique is a procedure, recently developed with partial support of AFOSR, of expressing the solution to heterogeneous problem in terms of the solution to the corresponding homogeneous problem.

Descriptors :   *FRACTURE(MECHANICS), SPACE TECHNOLOGY, DAMAGE ASSESSMENT, BRITTLENESS, HETEROGENEITY, TENSORS, MICROCRACKING.

Subject Categories : Mechanics
      Test Facilities, Equipment and Methods

Distribution Statement : APPROVED FOR PUBLIC RELEASE