Vol.3, No2, 2003, pp. 73-83
UD
C 620.178.7:621.791.052

THE ANALYSIS OF GEOMETRY AND WELDED JOINT HETEROGENEITY

EFFECT ON CHARPY SPECIMEN BEHAVIOUR

Miloš Dobrojević

Aleksandar Sedmak

Emhamed Argob

Olivera Popović

Faculty of Mechanical Engineering, University of Belgrade, Srbia and Montenegro

Abstract

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.

Keywords: heterogeneity of welded joint, matching effect, finite element method, stress analyses, standardized Charpy testing, subsized Charpy specimen

full article (1.2 MB)