This work deals with the evaluation of adhesive single-lap joints using ultrasound guided waves; in particular, it is intended to characterize signal propagation when defects are present joint by simulation and experimental approaches. The waves developed from matrix formulations. behavior wave modes that exist bonded region characterized. It found its amplitudes can be estimated properties inc...

void within the adhesive. Depending upon the number of notches and voids, the specimen is divided into several regions. Assuming that a plane strain state of deformation prevails in the specimen, we write the balance of forces and moments for each section and impose the continuity of displacements, forces and moments at the interfaces between the adjoining sections. By taking the Laplace transf...

The thermal loading during the curing process of an adhesive-bonded joint induces residual stresses in joint, thereby affecting its performance. problem becomes worse case a multi-material involving varying coefficients expansion (CTE) for different parts. A novel approach was developed to model properties automotive grade structural adhesives heat process. material divided into two components:...