TY - JOUR A1 - Schwaab, Holger A1 - Grünbichler, Hannes A1 - Supancic, Peter A1 - Kamlah, Marc T1 - Macroscopical non-linear material model for ferroelectric materials inside a hybrid finite element formulation JF - International Journal of Solids and Structures KW - Ferroelectricity KW - Piezoceramics KW - Materials Y1 - 2019 IS - 49 SP - 457 EP - 469 ER -