Improved numerical integration for locking treatment in isogeometric structural elements, Part I: Beams
We model Timoshenko isogeometric curved beams. We examine membrane and shear locking in pure bending problems. Increasing the continuity across the elements accentuates the numerical locking. Higher continuity elements exhibit superior accuracy when no locking occurs. We propose a general mathematical framework to define improved integration rules for locking treatment.
numerical locking isogeometric analysis b b -splines/nurbs b b b b b selective reduced integration timoshenko beam