[en] A tensorial nonlinear theory of tertiary creep of isotropic materials is presented. Anisotopic creep damage is described by a two-stage ''damage tensor''. In order to determine the material constants of the material equation and evolution equation, uniaxial creep experiments were carried out on flat test pieces of the austenitic steel X8 CrNiMoNb 16 16
Original Title
Bestimmung der Materialkennwerte einer drei-dimensionalen Theorie zur Beschreibung des tertiaeren Kriechverhaltens austenitischer Staehle auf der Basis der Experimente