A stabilised finite element method for the plate obstacle problem
arXiv:1711.04166 · doi:10.1007/s10543-018-0728-7
Abstract
We introduce a stabilised finite element formulation for the Kirchhoff plate obstacle problem and derive both a priori and residual-based a posteriori error estimates using conforming -continuous finite elements. We implement the method as a Nitsche-type scheme and give numerical evidence for its effectiveness in the case of an elastic and a rigid obstacle.