This paper summarizes fatigue test on high strength steel specimens in the as-welded condition and specimens treated by ultrasonic impact treatment, TIG dressing and a combination of TIG dressing and ultrasonic impact treatment. Single lap joint specimens in 6 mm aluminium plate material were tested in the as-welded, hammer peened, needle peened and ground condition. Aluminium joints with longi...

The recent increase in the use of adhesively bonded joints (ABJs) made from dissimilar adherends demands acquisition a better understanding strength and behaviour these joints, including their failure mechanisms. Several studies have reported on such individually, however few compared performances ABJs with varying configurations design parameters, order to determine optimal configuration for h...

Finite element analysis (FEA) and continuum mechanics techniques have been used to model the thermal residual stress distribution in bonded joints and assess the suitability of using two-dimensional (2D) analysis methods. The methods are first employed to investigate stresses in metal-epoxy bi-material strip samples. The change in curvature of two bi-material strip systems during heating and co...

The failure in structural adhesively bonded lap joints can be analyzed following different approaches: using a nominal stress state typically given by Strength of Material models, a local singular stress state induced at the mutimaterial corners of the joint, or using cohesive constitutive laws for the adhesive layer or other damage progression models. The aim of this paper is to analyze the su...