Fast isogeometric boundary element method based on independent field approximation
We present an alternative isogeometric BEM for elasticity on NURBS patches. Boundary data and geometry are approximated independently which avoids redundancies. Hierarchical matrices provide almost linear computational complexity. Comparison of different Ansatz functions on NURBS patches. The results show optimal convergence for all tested orders.
elasticity nurbs hierarchical matrices convergence subparametric formulation isogeometric analysis