Approximation of elastic-plastic local strains in surface-hardened notched components

Elastic-plastic strains at points relevant for structural failures are usually approximated using formulas based on the stresses determined by elasticity theory. For this purpose, Neuber approximation is a common method to estimate local elastic-plastic in notch root, although currently only approved homogeneous components. surfacehardened notched components, these need be modified cover two potential failure points: The root as well interface between stronger surface layer and weaker core material. In following, multi-step algorithm shown that allows estimation of points, single elasticitytheoretical solution. A comparison values with those from finite element analyses (FEA) reveals results minor inaccuracies, while usability remarkable.