Molecular Dynamics Simulation of the Interaction between Cracks in Single-Crystal Aluminum

The interaction between cracks, as well their propagation, in single-crystal aluminum was simulated at the atomic scale by molecular dynamics method and modified embedded atom method. Further, effects of distance two cracks difference crack size on propagation mechanical properties were comprehensively investigated. results demonstrated that multi-crack is a quite complex process, which accompanied micro-crack growth, merging, stress shielding, crossing slip bands. During there are interactions cracks. Such inhibit phase transition, dislocation bands tip, also affect direction propagation. intensity decreases with increase them increases increasing size. Moreover, strength limit