Abstract
Linear fracture mechanics (or at least the initiation part of that theory) can be framed in a variational context as a minimization problem over an SBD type space. The corresponding functional can in turn be approximated in the sense of \({\Gamma}\)-convergence by a sequence of functionals involving a phase field as well as the displacement field. We show that a similar approximation persists if additionally imposing a non-interpenetration constraint in the minimization, namely that only nonnegative normal jumps should be permissible.
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Chambolle, A., Conti, S. & Francfort, G.A. Approximation of a Brittle Fracture Energy with a Constraint of Non-interpenetration. Arch Rational Mech Anal 228, 867–889 (2018). https://doi.org/10.1007/s00205-017-1207-z
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DOI: https://doi.org/10.1007/s00205-017-1207-z