On the use of mixed basis function degrees within a convective isogeometric element formulation

Solving linear elasticity problems using standard finite element methods, different locking phenomena can occur. In order to counteract these effects, mixed methods or formulations higher approximation orders be employed, for instance. As a consequence, this leads an increased computational effort. Hence, selective elevation of in decisive directions within purely displacement-based formulation is proposed contribution. Within isogeometric analysis (IGA), the geometry discretized non-uniform rational B-splines (NURBS), which simultaneously represent basis functions analysis. Due fact that preserved exactly during analysis, increase accuracy results. contribution, convective systems are aligned with local employed combined elevation. The required interpolated from those determined each control point.