Měření zbytkových napětí odvrtávací metodou

Abstract

This thesis deals with investigation of residual stress on the thickness of the test sample by hole drilling method. From the measured relaxed strains, which were found by experiment, we calculated resulting residual stress with procedure describe in ASTM E837-13a standard for linear and nonlinear stress distribution along the depth. After that was construct numerical model with final element method, which was used for comparison with experiment. Last part of this thesis compares the results of residual stress calculated according to the calibration coefficients listed in ASTM standard with stress obtained from new coefficients identified from the FEM model.