Joining of the alloys AA1050 and AA5754—Experimental characterization and multiscale modeling based on a cohesive zone element technique

The microstructure of two widely used engineering materials is experimentally and numerically investigated. Experimental measurements at the macroscopic scale are used for the validation of the micromechanical crystal plasticity computations. A major point of the paper is the development of a cohesive zone element formulation in the framework of zero-thickness interface elements. This enables the realistic modeling of bonding and debonding based on a traction-separation law. The ability of the cohesive zone element in describing the interface behavior is illustrated by means of several numerical examples, including the process of roll bonding.