Nitsches method for a coupling of isogeometric thin shells and blended shell structures
We propose a weak coupling method for thin KirchhoffLove NURBS shell patches. G1 G 1 -continuity is preserved thus preventing hinge effects of C0 C 0 -continuous patches. Our method retains prescribed angles of folded shells structures. We consider a blended coupling of solid-like patches and KL shell patches. We demonstrate convergence and accuracy with several numerical studies and examples.
nitsche weak coupling isogeometric analysis kirchhofflove shells solid-like shells mixed-dimensional coupling