The use of Matlab in the advanced design of bonded and welded joints

The development of new models for joining design assumes a great importance in the industrial and research field. The prediction of residual stresses, temperature distributions, phase transformations, asymptotic stress fields near the weld toe or near the interface between the matrix and the adhesive in bonded joints, may be a fundamental step for a good joining plan and operation. Aim of this work is to describe some analyitical models developed for bonded and welded joints and solved by means of Matlab code. In the first part, models for temperture ditributions, phase transformations diagrams and residual stresses prediction will be presented with particular attentions both to conventional and innovative welding precesses such as laser and friction stir welding. In the second part, after a brief description of the ‘stress function approach’ used in advanced joints planning, the application of Matlab code in such field will be treated.