Finite Element Modeling for Thermal Stresses Developed in Riveted and Rivet - Bonded Joints

A three-dimensional finite element modeling is developed using ABAQUS software. This includes riveted and rivet-bonded joints models. Both models undergo thermal heat caused by hot-driven rivet process and then are subjected to a constant velocity at one of its strip edges to simulate the shear tensile test up to the failure point. The developed FE models were based on elastic-plastic properties and ductile fracture limit criteria. In addition, the adhesive layer was modeled based on traction separation. Detailed experiments were conducted to evaluate these material properties and provide the FE developed models with these necessary data. The thermal stresses developed in riveted and rivet-bonded joints are assessed and reported. The present work shows that introducing an adhesive layer to riveted joints vastly reduces the stresses developed in these joints. In addition, the complete load-displacement curve for each joining model is obtained and compared with the finite element models without including the effect of thermal analysis. Index Term— Adhesive Layer, Load-Displacement Curve, Rivet, Rivet-Bonded, Thermal Stresses.