Stress Intensity Factor for Cracks at the Toe of Welded Joints

Paolo Livieri; Roberto Tovo

doi:10.4028/www.scientific.net/KEM.348-349.257

Paper Titles

Investigation of the Ballistic Performance of Two Different Polymer Matrix Composites
p.241

Fatigue Behavior of Corroded Structural Steel Members in Boundary with Concrete
p.245

Fatigue Life of Multi-Spot Welded Structures
p.249

The Use of the Singular Elastic Peak Stress Evaluated by FE Analyses for Fatigue Strength Assessment of Welded Joints
p.253

Stress Intensity Factor for Cracks at the Toe of Welded Joints
p.257

Fatigue Crack Propagation in Friction Stir Welded Joints of Particulate Metal-Matrix Composite
p.261

A Numerical Investigation about the Effects of the Riveting Operation on the Strength of Joints
p.265

Investigation of the Dynamic Damage of the Rocks Subjected to Short Pulse Laser
p.269

Effect of Preformed Angle in Lap Zone on the Failure Procedure of Adhesively Bonded Aluminium Joint
p.273

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Stress Intensity Factor for Cracks at the Toe of Welded Joints

Abstract:

This paper proposes a method for evaluation of the Stress Intensity Factors (SIFs) of embedded cracks lying along the bisector of the welded toe angle. The SIFs are calculated on the basis of the JV parameter (extension of the J-integral to a sharp V-notch) for a path radius equal to the crack extension without modelling the crack. The numerical calculations in the paper show the stability of the proposed method also with course meshes.