The effect of geometry (notch shape,
specimen size) and materials heterogeneity (mismatching in welded joint) on the
Charpy specimen behaviour is analysed in the paper. Two- and three-dimensional
stress analyses by finite element method (FEM) are applied in solving this
problem, thus providing stress-fields and plastic deformation distribution in
specimen, and presenting its behaviour.
heterogeneity of welded joint, matching effect, finite
element method, stress analyses, standardized Charpy testing, subsized Charpy