Breadcrumbs Section. Click here to navigate to respective pages.
Chapter

Chapter
Initiation of Interface Cracks
DOI link for Initiation of Interface Cracks
Initiation of Interface Cracks book
Initiation of Interface Cracks
DOI link for Initiation of Interface Cracks
Initiation of Interface Cracks book
ABSTRACT
An interface edge is the likeliest site of fracture initiation because
of the stress singularity due to modulus mismatch. As illustrated
in Fig. 6.1, the singular stress (stress-concentrated) region near the
interface edge proportionally scales down (Becker et al., 1997) in
a continuum media as the size of a component becomes small. In
a component with single-micrometer or nanometer size, the region
governed by the singular field is confined in the nanoscale (Kiramura
et al., 2002, 2003). In such a case, the applicability of fracture
mechanics to the crack initiation from the edge is questionable
because the concept is built on continuummechanics.