Näherungsverfahren zur Berechnung von Kerbspannungen und -dehnungen bei Plastizität und Kriechen

摘要

This work presents four methods for predicting notch stresses and strains: the classical Neuber method, the Glinka method, a new numerical Neuber method and the interpolation method. Creep and plasticity under proportional loading and constant temperature are taken into account. Furthermore an approach for calculating principal notch stresses and strains is introduced. To verify these methods FEM analyses of a notched rectangular plate and a tensile specimen under tensile load are carried out. In addition, the average deviations of the approximative methods towards the FEM results are evaluated. As a result, all four methods approach the FEM results very precisely.