Phase-field approximation of functionals defined on piecewise-rigid maps
Marco Cicalese,
Matteo Focardi,
Caterina Ida Zeppieri
Abstract:We provide a variational approximation of Ambrosio-Tortorelli type for brittle fracture energies of piecewise-rigid solids. Our result covers both the case of geometrically nonlinear elasticity and that of linearised elasticity.
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