In this paper a new boundary-only based
damage modeling is presented. Despite the damage
occurred inside the problem domain, the solution procedure
requires boundary-only discretization of the
problem. A few additional points are located at damage
places. The Eshelby equivalent inclusion theory is coupled
with the direct boundary integral equation method
to predict the damage patterns. The relevantment like
damage stiffness matrix which is obtained directly in
a condensed form at degrees of freedom along the
problem boundary. A nonlinear incremental–iterative
solution procedure is implemented. Several numerical
examples are presented to demonstrate the validity of
the proposed technique. |
