Nicolas Pignet was a PhD student at CERMICS from November 2016 to October 2019, supported by a CIFRE PhD Fellowship with EDF R&D. He defended his PhD in October 2019 on hybrid high-order methods for nonlinear solid mechanics. Nicolas Pignet devised and analyzed new discretization schemes, and applied them to hyperelasticity, plasticity, and contact/friction problems. He implemented his work in the diskpp software at CERMICS and the industrial software code_aster at EDF. Nicolas Pignet is now Research Engineer at ERMES Department, EDF R&D.