Scripta Mater. 36, 943-947, 1997
C.M. Chimani, H.J. Böhm and F.G. Rammerstorfer
Institute of Lightweight Structures and Aerospace
TU Wien, Vienna, Austria
When homogeneous material descriptions are used in studying the elastic stress
field at the free edge of a bimaterial junction, typically a weak and highly
localized singularity is predicted.
By using a micromechanical model corresponding corresponding to a selectively
reinforced sample it is demonstrated that no singularity is present in some
cases where one of the materials contains inhomogeneities of a size comparable
to or larger than the local region affected by the singularity.