PARTICULARITIES IN THE APPLICATION OF THE BOUNDARY EL- EMENT METHOD WITH HIGHER ORDER ELEMENTS IN TWO DIMENSIONAL POTENTIAL PROBLEMS

Resumo

In this work, the Boundary Elements Method (BEM) applied to two-dimensional potential problems
with quadratic and cubic isoparametric elements are analyzed. Unlike the constant and linear elements, the modus
operandi of the coordinate transformations, the numerical integration procedures and the treatment of singular
integrals are not simple, since the Jacobian of the transformation is no longer constant throughout the element and
are treated numerically. The objective of this work is to analyses the effect of the self-adaptive integration scheme
for solving the Boundary Element Method integrals.