Improved numerical integration for locking treatment in isogeometric structural elements. Part II: Plates and shells
We model ReissnerMindlin isogeometric plates and shells. We examine membrane and shear locking in bending dominated problems. Higher continuity elements exhibit superior accuracy when no locking occurs. We extend one-dimensional reduced quadrature rules to two-dimensional rules. We assess the performance of the schemes using the shell obstacle course problems.
isogeometric analysis b-splines/nurbs numerical locking selective/reduced integration reissnermindlin shells