Numerical Analysis of Stress Intensity Factor in Specimens with Different Fillet Geometry Subjected to Bending

The article presents the maps of xx stress component and compares values of analytical and numerical calculations for the stress intensity factor range of welded specimens with fillet welds which subjected to cyclic bending. The tests were performed under constant value of moment amplitude M = 9.20 N·m and stress ratio R = σ / σ = −1. The specimens were made of drag steel rod S355. The specimens were solid and welded. The numerical models were simulated with ABAQUS suite and numerical calculations performed with FRANC3D software.