Albrecht C. Liskowsky

TL;DR: In this article, the constitutive behavior of a ferroelectric ceramic by a plane strain finite element model, where each element represents a single grain in the polycrystal, is investigated.

TL;DR: In this article, a Coulomb gauge condition was proposed to improve the convergence behavior of the electric vector potential for static three-dimensional fully coupled electromechanical problems, and a penalized version of the weak vector potential formulation was proposed and tested on some numerical examples in electrostatics and piezoelectricity.

TL;DR: In this article, a return mapping algorithm for a rather general class of phenomenological rate-independent models for ferroelectroelastic materials is presented, based on the operator splitting methodology, which employs the closest point projection scheme to obtain an efficient and robust integration of the constitutive model.

TL;DR: In this paper, a simulation of the nonlinear electromechanical macroscopic behavior of ferroelectric materials by means of the finite element method is presented, where a material point is depicted by a volume element, for which homogeneous boundary conditions are valid.

TL;DR: In this article, the Coulomb gauge condition on the electric vector potential has been used to improve the convergence behavior of nonlinear problems, and in combination with appropriate boundary conditions, it can enforce unique vector potential solutions.