Author(s): D.P. Rooke
Cracks pose special problems in structural analysis.
Because of the
complexity of engineering structures numerical analyses are invariably required.
The presence of cracks can introduce singularities in the numerical modelling in
addition to those in the linear elastic stress fields.
Special techniques are needed
to cope with these.
Some of these techniques are described and some particular
structural applications identified.
Cracks are boundaries.
In structures they invariably grow from one boundary
Indeed, structural failure is commonly defined as the linking
of two boundaries by a crack.
Both the rate of growth and the direction are
influenced by the proximity of boundaries.
These physical observations point to
the need for procedures of analysis that can accurately model the boundaries in
fracture mechanics applications.
In general the complexity ...
Size: 906 kb
Paper DOI: 10.2495/BE940391
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