On an optimal AFEM for elastoplasticity

In this paper, optimal convergence for an adaptive finite element algorithm for elastoplasticity is considered. To this end, the proposed adaptive algorithm is established within the abstract framework of the axioms of adaptivity Comput. Math. Appl., 67(6) (2014), 1195-1253, which provides a specific proceeding to prove the optimal convergence of the scheme. The proceeding is based on verifying four axioms, which ensure the optimal convergence. The verification is done by using results from Numer. Math., 132(1) (2016), 131-154, which presents an alternative approach to optimality without explicitly relying on the axioms.