The onset of void coalescence during dynamic fracture of ductile metals

Abstract

Molecular dynamics simulations in three-dimensional copper have been performed to quantify the void coalescence process leading to fracture. The correlated growth of the voids during their linking is investigated both in terms of the onset of coalescence and the ensuing dynamical interactions through the rate of reduction of the distance between the voids and the directional growth of the voids. The critical inter-void ligament distance marking the onset of coalescence is shown to be approximately one void radius in both measures.

arXiv commentAccepted for publication in Phys. Rev. Lett

References in corpus (1)

• Effect of stress-triaxiality on void growth in dynamic fracture of metals: a molecular dynamics study

Cited by in corpus (4)

• Statistical Models of Fracture
• Three-dimensional molecular dynamics simulations of void coalescence during dynamic fracture of ductile metals
• Void Growth in BCC Metals Simulated with Molecular Dynamics using the Finnis-Sinclair Potential
• Complex fields in heterogeneous materials under shock: modeling, simulation and analysis